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carroll_beth

Humpback Whales, Humpback Whale Pictures, Humpback Whale Facts - National Geographic - 1 views

animals.nationalgeographic.com/...humpback-whale

facts animals whales humpback

shared by carroll_beth on 03 Nov 14 - No Cached
  • Mothers and their young swim close together, often touching one another with their flippers with what appear to be gestures of affection. Females nurse their calves for almost a year, though it takes far longer than that for a humpback whale to reach full adulthood.
    • carroll_beth
      carroll_beth on 04 Nov 14
       
      Mother and baby humpback whales swim close to each other and touch each other frequently.  Scientists think that this is because they love each other and are showing that love to each other.  Babies drink their mother's milk for a whole year, and take a long time to grow up.
  • It is most likely that humpbacks sing to communicate with others and to attract potential mates.
  • t is most likely that humpbacks sing to communicate with others and to attract potential mates.
Eugenio Ferrara

The Mariners' Museum | EXPLORATION through the AGES - 0 views

ageofex.marinersmuseum.org/index.php

lief exploration

shared by Eugenio Ferrara on 20 Jan 15 - No Cached
  • d. He had brothers, Thorvald and Thorstein, and a half-sister, Freydis. In the year 999 BCE, Ericsson sailed to Norway to visit King Olaf Trygvson. On his way the ship was blown off course and he landed on one of the Hebrides islands. Continuing poor weather made it impossible for him to leave so he spent the summer on the island.
  • . She gave birth to his son and as his departure date drew near, she asked that he take her with him. He refused, citing her family connections. Thorgunna had a reputation for being able to predict the future, and vowed that even though Leif was leaving them, one day she and their son would journey to find him and the experience would not be a good one.
  • , while other sources claim that when the boy was old enough to travel, he found Leif.
  • ...15 more annotations...
  • What is known for certain is that Leif and the boy eventually found each other and the young man was recognized as his son.
  • Nevertheless, Leif left the island and got to Norway by the fall. King Olaf welcomed him to his court and asked if Leif had plans for a voyage to Greenland. The king had recently been converted to Christianity and wanted Leif to proclaim Christianity to the Norse settlers living in Greenland, including his parents. He returned to Greenland, and as the king wished, spread the message of Christianity. Leif’s mother, Thjodhild, quickly adopted the new religion, but his father, Eric, was reluctant to give up his pagan beliefs. Only when Thjodhild refused to live with
  • him as man and wife, did Eric the Red finally convert to Christianity.
  • Leif Eiriksson’s exploration and discovery of America was inspired by the accidental voyage of Bjarni Herjulfson.
  • As a skilled sailor and trader, Herjulfson had devoted himself to going on trading voyages from Iceland every other year
  • In 1002 BCE, Leif Eiriksson decided to explore the unknown lands discovered by Herjulfson while on the quest for his father.
  • Leif bought a ship from Bjarni and gathered a crew of thirty-five men.
  • Eric, his father, was approached about being the expedition leader. A fall from a horse prior to embarking convinced Eric that he would be unlucky on the voyage and that he was too old to set off on another adventure. Leif himself took command and the ship and crew departed.
  • The first country Leif encountered was the last one Herjulfson had seen. It was barren, with glacier-topped mountains and vast stretches of rock-covered ground
  • Initiating the practice of naming the lands he found after their geological and physical traits, he called this area Helluland, or “land of flat rocks.” (Labrador)
  • The second country Leif sailed to was level and wooded, with deep white beaches and a sloping shoreline. He called this place Markland (Newfoundland) or “forest land.” Leaving there, he sailed northeast. He found an island north of the mainland. He and his crew sailed the channel between the island and mainland and steered west. When they found land they went ashore, discovering a small river that flowed to the sea. They returned, took the ship up the river to a lake where they decided to build houses, and stayed through the winter.
  • The area had salmon in the river and lake; the winter was mild and almost frost-free, and the grass did not wither during the cold season.
  • The hours of daylight and nighttime were more equally divided than in either Iceland or Greenland
  • Leif divided his crew in half, determined to explore the area. Half would stay in camp while the other half went as a group to investigate the surroundings. The exploration crew was to go no further than the distance they could travel in order to return to camp by nightfall.
  • to explore the area. Half would stay in camp while the other half went as a group to investigate the surroundings. The exploration crew was to go no further than the distance they could travel in order to return to camp by nightfall.
guzman5860

Why is the sky blue, sunsets red, and clouds white? * KidExplorers * ChristianAnswers.Net - 0 views

www.christiananswers.net/...skycolor.html

sky sunset clouds white

shared by guzman5860 on 31 Oct 14 - No Cached
  • The sky is blue because of the “scattering” of sunlight. The color blue has a shorter wavelength and greater energy than the other colors. As a result, blue is selectively absorbed by air molecules, then given off again in all directions. The other colors are less scattered, and therefore not usually seen.
    • guzman5860
      guzman5860 on 06 Nov 14
       
      The sky is blue because its wavelength is shorter and it has more energy than other colors and the other colors are not always seen.
touche5839

How Birds Fly: An In-Depth Journey North Lesson - 0 views

www.learner.org/...FlightLesson.html

flight birds wings

shared by touche5839 on 03 Dec 14 - Cached
  • A bird's center of gravity is the balance point between its two wings and between its head and tail. I
  • To fly well, birds must have most of their weight in their center of gravity, and very little weight in front of or behind it.
  • un into the wind, and the rush of air beneath their wings lifts them up. Others, like puffins and Peregrine Falcons, jump off cliffs and other high perches. Chimney Swifts simply let go of their chimney or other vertical perch, and fall into the air. Hummingbird wingbeats are so powerful that they can go straight up from a perched position without jumping. Songbirds, cranes, and many other species leap up on strong legs while flapping their wings, and there they go.
  • ...1 more annotation...
  • The reason birds can is because of the special shape of their wings. The bones of bird wing are in front, covered with a smooth layer of feathers that taper toward the back.
Nany Rocha

Stanford research: The meaningful life is a road worth traveling - 2 views

news.stanford.edu/...ningful-happy-life-010114.html

happiness meaning research

shared by Nany Rocha on 06 Nov 14 - No Cached
  • One can find meaning in life and be unhappy at the same time. Aaker points out that this type of life has received less attention in the media, which has recently focused on how to cultivate the happy life.  Examples of highly meaningful, but not necessarily happy, lives may include nursing, social work or even activism. The unhappy but meaningful life involves difficult undertakings and can be characterized by stress, struggle and challenges. However, while sometimes unhappy in the moment, these people – connected to a larger sense of purpose and value – make positive contributions to society. Happiness without meaning is characterized by a relatively shallow and often self-oriented life, in which things go well, needs and desires are easily satisfied, and difficult or taxing entanglements are avoided, the report noted. And so, the meaningful life guides actions from the past through the present to the future, giving one a sense of direction. It offers ways to value good and bad alike, and gives us justifications for our aspirations. From achieving our goals to regarding ourselves in a positive light, a life of meaningfulness is considerably different than mere happiness. "People have strong inner desires that shape their lives with purpose and focus – qualities that ultimately make for a uniquely human experience," said Aaker.
    • Nany Rocha
      Nany Rocha on 07 Nov 14
       
      Happiness comes from having stuff only if you think about happiness like that. Happiness actually comes from not being stressed and trying to be with your family.
    • Nany Rocha
      Nany Rocha on 07 Nov 14
       
      People think that happiness comes from having phones,toys,etc.but thats the problem,Thanks to other peoples blogs and myths people think that the only way to be happy is from having stuff,and from having the "Happiness stuff" comes being "Buried alive".
    • Nany Rocha
      Nany Rocha on 07 Nov 14
       
      Being happy is not about having stuff,its about being with your family,Happiness is the best thing that can happen to anybody.Happiness is kind of the meaning of life,it gives us a meaning of what to do and when to do it.Happiness gives us a path to life,happiness is when you are with your family,happiness helps us understand that we can do better than what we already do.Happiness as you know doesn't come from having stuff,
    • morales5853
      morales5853 on 07 Nov 14
       
      no
    • Nany Rocha
      Nany Rocha on 07 Nov 14
       
      Happiness is also known as a goal of life.It represents us as who we are. Happiness shows on our face.It makes other people see our pride sometimes other people feel our pride so much that they show their pride,and the happiness influence goes and goes until at some point it stops.nI clearly think that if it wasn't for happiness,pride and making our goals (Not soccer goals) we would still be cavemen and cavewomen because without them we would be terrible we would feel stupid we would feel so dum that not even Benjamin Franklin would've created the light because he probably would've felt stupid. So thats why being happy is important because without happiness we wouldn't have accomplished anything.And look at us now we already went to the moon we made a tv we made a telephone and now we have iphones.it all happened thanks to our 1 and greatest feeling:Happiness.
    • Nany Rocha
      Nany Rocha on 10 Nov 14
       
      Sometimes people feel sad and depressed so they go to the mall and go buy clothes and other items,then they claim to be relaxed and happy but Jennifer Aaker proved that its not true.In fact she proved that there are lots of ways to be happy but only 1 way is the most true hearted : Social work and also being with your family.But you cant be happy by just standing besides your family,you would have to be social with them.
  • A Stanford research project explored the key differences between lives of happiness and meaningfulness. While the two are similar, dramatic differences exist – and one should not underestimate the power of meaningfulness. "The quest for meaning is a key part of what makes us human," the researchers concluded.
    • Nany Rocha
      Nany Rocha on 07 Nov 14
       
      A Stanford research project explored the key differences between lives of happiness and meaningfulness. While the two are similar, dramatic differences exist - and one should not underestimate the power of meaningfulness. "The quest for meaning is a key part of what makes us human," the researchers concluded. BY CLIFTON B. PARKER Social psychologist Jennifer Aaker studies happiness and meaningfulness in life. While lives of meaningfulness and happiness overlap, they are distinctly different, according to Stanford research. But not everybody understands that happiness comes from within not from having or buying stuff. 50% of the world population (Not counting the babies) thinks that the more stuff they got or get the happier they'll be!But of course that we the "smart" population think otherwise. Social psychologist Jennifer Aaker has studied her whole life everything about happiness and she taught us that happiness comes from within happiness comes from smiling everyday from being social with friends or family.Happiness doesn't come from having stuff not at all!! Happiness is the greatest gift of all,happiness isnt just a feeling,happiness is a friendly shadow that follows you everywhere only if you let it.
    • Nany Rocha
      Nany Rocha on 07 Nov 14
       
      The Stanford research project of Jennifer Aaker explains how to get happiness and why it is important.But now I realize that not everybody understands that happiness comes from within not from having or buying stuff. 50% of the world population (Not counting the babies) thinks that the more stuff they got or get the happier they'll be!But of course that we the "smart" population think otherwise. Social psychologist Jennifer Aaker has studied her whole life everything about happiness and she taught us that happiness comes from within happiness comes from smiling everyday from being social with friends or family.Happiness doesn't come from having stuff not at all!! Happiness is the greatest gift of all,happiness isn't just a feeling,happiness is a friendly shadow that follows you everywhere only if you let it.When I say that happiness is a shadow following you only if you let it its because this days happiness is a complete shadow.Not everybody is happy and someday we might never feel happiness ever again,But while I get off topic you should think : "Wow,I should listen to her.I should be grateful for what I already have, instead of getting more stuff." Because the more you think about it the more you understand that happiness is our path to life.that happiness is our friend happiness is our heart that keeps us alive.Thats why we smile thats why we cry thats why we love laugh and live. Without happiness we would be grumpier than the grumpiest cat.We should think more about being grateful than thinking of what to buy to be happy.
  • Nany Rocha on 06 Nov 14
     
    A bit boring but i hope its helpful!
  • morales5853 on 07 Nov 14
     
    A bit boring but i hope its helpful!
Nany Rocha

Gender Focus | The History of Pink for Girls and Blue for Boys - 1 views

www.gender-focus.com/...pink-for-girls

gender pink blue girls boys

shared by Nany Rocha on 31 Oct 14 - No Cached
  • But did you know that pink hasn’t always been a colour for girls, or blue for boys? In Michael Kimmel’s outstanding Manhood in America: A Cultural History, he points out that clothing wasn’t colour-coded in America until the early twentieth century, before which little boys and girls were dressed pretty much identically. Even when people started pushing for more gender-specific children’s clothing, there was a huge debate over which colour to assign to which gender. It started out with boys wearing pink or red because the colours were seen to indicate strength, while girls wore blue because they were “flighty” like the sky. From a 1918 editorial called “Pink or Blue” cited by Kimmel:
    • Nany Rocha
      Nany Rocha on 04 Nov 14
       
      Michael Kimmel pointed out that color coding wasn't used in the vintage america.In fact little boys and little girls used to dress up the same way.But then people wanted to make little kids use specific colored clothes.It started with boys wearing pink or red stuff because the colors where supposed to symbolize strength,while girls used blue because it was soft and dainty (Delicate).
  • So basically the colours changed based on which colour was seen to denote the strength of boys and delicacy of girls, but the idea that those traits are inborn and inalienable did not. It’s not just clothes: walk through the girls’ section of any Toys R Us and you’ll see shelf after shelf of pink, pink, pink. While little girls enjoy some leeway to play with blue toys, many boys get mocked if they want to play with pink “girls’ toys” and sometimes their parents and relatives start panicking that they might even grow up to be (gasp) gay. The fact that parents worry about the sexuality of their kids at all is crazy enough in itself, but that’s for another time. Back to colour-coding.
  • If you think boys and girls just forget about coding gender based on colour once they hit puberty, you’d be wrong. Maricopa County Sheriff Joe Arpaio made headlines when he started forcing male inmates to wear pink underwear to humiliate them. He says it’s a deterrent to reoffending because inmates don’t want to come back and be forced to wear pink again. How screwed up is it that we’ve given a colour so much meaning in less than 100 years that it would make grown male criminals tremble just to think about wearing it?
  • ...2 more annotations...
  • his is about more than policing convicts, it’s about policing the boundaries of masculinity and reinforcing homophobia. Kimmel states: “Homophobia is more than the irrational fear of homosexuals…[it] is the fear of other men – that other men will unmask us, emasculate us, reveal to us and the world that we do not measure up, are not real men.” The pink and blue shoe keychains might not seem like a big deal, and indeed most people don’t think twice about them. But imagine how much harder it could be for some trans and intersex people to negotiate a restroom ritual like this. Gender-neutral washrooms are a big step towards fixing this issue, but so is realizing that blue-pink colour coding is just the tip of the iceberg of things we use to arbitrarily divide “masculine” from “feminine”.
    • Nany Rocha
      Nany Rocha on 04 Nov 14
       
      Gender stereotypes are something that might not seem important,but actually it is a bit important because it kind of symbolizes what a girl or boy will or would use as clothes or other things.I really think that all this stereotypes are dum because it actually doesn't make sense.
Diego Hinojosa

Neptune -- Britannica School - 0 views

school.eb.com/...345012

neptune Atmosphere

shared by Diego Hinojosa on 04 Nov 14 - No Cached
  • The planet that Voyager uncovered is a stormy, windswept world with a vivid blue hue. Its highly active atmosphere is surprising, since it receives so little sunlight to power its weather systems. Like the other giant outer planets, Neptune has no solid surface. It also has a system of rings and more than a dozen moons.
    • Diego Hinojosa
      Diego Hinojosa on 04 Nov 14
       
      Neptune is a planet that has a lot of blue. It's atmosphere and also surface is not solid. It also has rings and like 12 moons.
  • Neptune is the smallest of the four giant outer planets. The diameter at its equator is about 30,775 miles (49,528 kilometers), as measured at a level of the atmosphere where the pressure is 1 bar (the pressure at sea level on Earth). This makes it slightly smaller than Uranus but nearly four times as big as Earth. Neptune’s mass is about 1.2 times greater than Uranus’, however, and more than 17 times greater than Earth’s. It is the third most massive planet in the solar system, after Jupiter and Saturn. Like the other outer planets, Neptune has a low density—only about 1.6 times the density of water. However, it is the densest of the four, being roughly 25 percent denser than Uranus.
    • Diego Hinojosa
      Diego Hinojosa on 04 Nov 14
       
      Neptune is also the smallest planet of the biggest four. The atmosphere of neptune is really thick.Neptune is the most hard planet in other words solid planet and it is four times bigger than the earth.
lopez5891

Secret Language of Dolphins - 0 views

kids.nationalgeographic.com/...secret-language-of-dolphins

dolphin language

shared by lopez5891 on 31 Oct 14 - No Cached
  • Here's a conversation worth talking about: A mother dolphin chats with her baby…over the telephone! The special call was made in an aquarium in Hawaii, where the mother and her two-year-old calf swam in separate tanks connected by a special underwater audio link. The two dolphins began squawking and chirping to each other—distinctive dolphin chatter.
    • lopez5891
      lopez5891 on 04 Nov 14
       
      In National Geographic Kids, it said that two Dolphins were talking on a telephone! There was two different tanks, and there was an audio link in each one. And they were making sounds, and chirping and squeaking. The baby had 2 years.
    • lopez5891
      lopez5891 on 05 Nov 14
       
      In National Geographic they said that, two Dolphins were talking on the telephone! There were 2 tanks, on one there was a calf (baby Dolphin) of 2 years. And in the other there was the mother. There was an audio link connecting both the mother and the baby. And they were chirping, and squeaking. And they realized that they were talking to each other.
Isabel Herrera

FYI: Why Does Some Food Taste Bad To Some People And Good To Others? | Popular Science - 1 views

www.popsci.com/...ad-some-people-and-good-others

popular science taste

shared by Isabel Herrera on 04 Nov 14 - No Cached
  • ARE YOU A SUPERTASTER? To find out, put blue food coloring on your tongue. Blue dye doesn't stick to taste papillae, so if your tongue doesn't get very blue, you're probably a supertaster. The bluer it gets, the greater the chance you are a subtaster. More hot sauce!
    • Isabel Herrera
      Isabel Herrera on 04 Nov 14
       
      If you want to find out if you're a super taster, then simply put food coloring on you tongue. Let's say you put blue food coloring on you're tongue. Blue coloring does not stick to your papillae so if your tongue doesn't get very blue, then you're a super taster but if your tongue gets very blue the you're a sub taster.
  • People who have a lot of papillae—the bumps on our tongue, most of which house our taste buds—often find flavors overwhelming. They're "supertasters," and as such they add cream to their coffee and order food mild instead of spicy. Subtasters, on the other hand, have low papillae density and prefer their chicken wings "atomic."
    • Isabel Herrera
      Isabel Herrera on 04 Nov 14
       
      People who have a lot of papillae normally finds flavors to be a little bit to much, that shows that you're a super taster. But when you're a sub taster you have a very low amount of papillae.  
  • Most toxic plants taste bitter, and nomadic groups that came into contact with a variety of plants would have, over time, developed a variety of receptors. People from malaria-infested parts of the world tend to carry a gene that makes them less sensitive to some bitter compounds, specifically those that contain cyanide.
    • Isabel Herrera
      Isabel Herrera on 05 Nov 14
       
      People in the past, usually get to the point to eat poisonous food. But how will they know if it's poisonous??? Well once they taste it, they will find the taste very bitter. That would usually tell them that it's toxic.
guzman5860

Why is the sky blue? :: NASA's The Space Place - 0 views

spaceplace.nasa.gov/en

works Facts sky blue nasa

shared by guzman5860 on 31 Oct 14 - No Cached
  • Sunlight reaches Earth's atmosphere and is scattered in all directions by all the gases and particles in the air. Blue light is scattered in all directions by the tiny molecules of air in Earth's atmosphere. Blue is scattered more than other colors because it travels as shorter, smaller waves. This is why we see a blue sky most of the time
    • guzman5860
      guzman5860 on 04 Nov 14
       
      The blue light is sometimes scattered more than the other colors because all the molecules or particles that are in the atmosphere go in all directions and the wavelength is shorter and it has smaller waves so thats why the sky is blue most of the time.
    • guzman5860
      guzman5860 on 06 Nov 14
       
      The blue light is scattered the more than the other colors Because all the particles and molecules  that are in the atmosphere go in all directions and it spreads and the blue wavelength is shorter and the waves are smaller and it has lots of energy thats why the sky is blue
Diego Hinojosa

The Planets in Our Solar System in Order of Size - 0 views

www.universetoday.com/...planets-in-order-of-size

planets solar system

shared by Diego Hinojosa on 07 Nov 14 - No Cached
  • What also is amazing is the sheer size difference of planets. While humans think of Earth as a large planet, in reality it is dwarfed by the massive gas giants lurking at the outer edges of our Solar System. This article explores the planets in order of size, with a bit of context as to how they got that way.
    • Diego Hinojosa
      Diego Hinojosa on 07 Nov 14
       
      Earth can be thought by us people. By a giant planet but in reality it is really little. In our solar system. The biggest planets on the whole solar system are Jupiter and also saturn they both are "gas giants."
  • No human was around 4.5 billion years ago when the Solar System was formed, so what we know about its birth comes from several sources: examining rocks on Earth and other places, looking at other solar systems in formation and doing computer models, among other methods. As more information comes in, some of our theories of the Solar System must change to suit the new evidence.
lopez5891

What do Dolphins Eat? - Dolphin Facts and Information - 0 views

www.dolphins-world.com/what-do-dolphins-eat

dolphin Food

shared by lopez5891 on 03 Nov 14 - No Cached
  • While some dolphins eat fishes like herring, cod or mackerel, some others eat squids.
    • lopez5891
      lopez5891 on 04 Nov 14
       
      Dolphins eat small animals, and I think that what they d lis really good because if they ate more bigger animals they would start to be endengared. Because the more little they are, the more number of animals they are.
  • Even more, large dolphins like the killer whales, eat some other marine mammals like seals or sea lions and sometime even turtles.
guzman5860

Why is the sky blue? - 0 views

www.coolquiz.com/...sky.asp

sky blue

shared by guzman5860 on 31 Oct 14 - No Cached
  • The wavelength of the blue light scatters better than the rest, predominates over the other colors in the light spectrum, and makes the sky appear blue to us.
    • guzman5860
      guzman5860 on 04 Nov 14
       
      The wavelength of the color blue scatters better than the other colors because of its wavelength. And it makes the sky to be blue.
Nany Rocha

Stereotypes Examples - Examples Of Stereotypes - 0 views

fos.iloveindia.com/stereotypes-examples.html

stereotype examples facts

shared by Nany Rocha on 04 Nov 14 - No Cached
  • Whenever we don't have a good understanding of a subject, say, of people or countries, then we tend to make assumptions about them. Stereotype is nothing but those assumptions that have become common knowledge. Whenever you make judgments about people without knowing them, you are stereotyping them. Stereotyping makes people generalize things. More often, they are all false assumptions. Though there are both positive and negative stereotypes, a majority of them are offensive. People generally stereotype out of bias against a particular group of people or religion. Stereotyping becomes a way of conveying their dislike. Of course, stereotyping stems from a commonly held view of a particular group or race. This view may arise from an incident or false assumption, and then maybe used to color the entire community with the same brush. There are various types of stereotypes. However, the most common ones are racial stereotypes and gender stereotypes. Race, nationality, gender and sexual orientation are the main factors of stereotyping. Stereotyping must be avoided at all costs, as it leads to treating groups as a single entity. Given below are examples of stereotypes that people commonly use.
  • Examples Of Stereotypes Negative Stereotypes All blond women are dumb. All red heads are sluts. Christians are homophobic. They are blinded by God and will recruit you if you go near them. All politicians are philanders and think only of personal gain and benefit. If I wear Goth clothing I'm a part of a rock band, depressed, or do drugs. Girls are only concerned about physical appearance. Guys are messy and unclean. Men who spend too much time on the computer or read are geeks. Men who are not into sports are termed as gay. All librarians are women who are old, wear glasses, tie a high bun, and have a perpetual frown on their face. Girls are not good at sports. All teenagers are rebels. All children don't enjoy healthy food. Only anorexic women can become models. Women who smoke and drink do not have morals. Men who like pink are effeminate.
  • Positive Stereotypes All Blacks are great basketball players. All Asians are geniuses. All Indians are deeply spiritual. All Latinos dance well. All Whites are successful. Asians have high IQs. They are smarter than most in Math and Science. These people are more likely to succeed in school. African Americans can dance. All Canadians are exceptionally polite. French are romantic. All Asians know kung fu. All African American men are well endowed. Italians are good lovers
  • ...5 more annotations...
  • types Women Women always smell good. Women take forever to do anything. Women are more brilliant than men. Women are always moody. Women try to work out problems while men take immediate action. All women like the color pink. All women like dolls. Women become cheerleaders. Women take 2 hours to shower. Women hog the bathroom. Women love mirrors. Women like make-up. Women are fussy about their hair. Women work in department stores. Women like fashion magazines. Women are discrete about intimacy. Women do not drive well. Women never take chances. Women always talk too much on the phone. Women actually use only 5% of what's in their purse. Everything else is junk. Only women can be nurses.
  • Men Only men can be doctors. Men are stronger and more aggressive. Men are better at sports. Men hate reading. Men always have an "I don't care" attitude. Men don't get grossed out by scrapes and bruises. Men are tough. Men are thickheaded. Men like cars. Men become jocks in high school. Men take 2 seconds to shower. Men like hats. Men could care less if they become bald. Men wear whatever is clean. Men usually work in messy places. Men like car or porn magazines. Men brag about intimacy. Men take too many chances. Men always lose all arguments against girls. Every race, culture, country, religion and a community has a stereotype. It is a way of oversimplifying groups of people. It is one of the easiest ways of establishing identity. By conforming to a fixed or conventional image, the identity can be recognized and understood. And, herein lies the problem. It's hard to be objective if one doesn't reject stereotypes. So, it is better not to use any stereotype and pass judgments only when you are familiar with others.
  • Every race, culture, country, religion and a community has a stereotype.
  • Every race, culture, country, religion and a community has a stereotype.
    • Nany Rocha
      Nany Rocha on 05 Nov 14
       
      Every region and race has a stereotype.It is a way of sometimes insulting but also simplifying.But is actually better to not talk or show someone stereotypes because it could be a judgment and you could hurt others if you really know them. 
  • Nany Rocha on 04 Nov 14
     
    It describes what kinds of stereotypes there is
garza6544

How are rainbows made? - 0 views

faculty.cord.edu/...genamahlen.html

sky Info

shared by garza6544 on 03 Dec 14 - No Cached
  • The birth of each rainbow begins with millions of tiny rain droplets.  The rain droplets serve as a type of reflector of light.  White light enters one individual rain droplet and exits as one specific color of the spectrum.  Without millions of rain droplets, a rainbow would not occur.  If you only had a few rain droplets you would only see a few colors.  This is typically why rainbow appear after a rain storm
  • Each rain droplet has a function in the formation of the rainbow. Sunlight enters the rain droplet at a specific angle and the rain droplet separates the white light into many different colors.  This angle is a fixed measurement between your eye
  • and the sun.  What color is refracted depends upon the critical angle,                   which is the angle the sunlight strikes the back of the rain droplet.  Red light bends the least, exiting the rain droplet at a 42 degree angle, while Violet light bends the most, exiting the rain droplet at a 40 degree angle.  All of the other colors of the rainbow exit the rain droplets at some angle between 40 and 42 degrees, thus making up the colors of the rainbow ROYGBIV, this order never changes.
  • ...6 more annotations...
  • Each rain droplet reflects all colors at a given point and time, but only one color comes back to your eye, requiring million of rain droplets to create a rainbow.  As the rain droplets fall through the sky, the colors of the spectrum being reflected and refracted are constantly changing.
  • The perfect time and place to look for a rainbow you need bright sunlight to your back and rain clouds off in the distance in the direction of your shadow. If it is later than 4:30 in the afternoon or earlier than 8:30 in the morning at these condition there is a very good chance you will be able to see a rainbow in the sky.  Other places you may see rainbows formed are fountains, in the ocean as the waves crash against the rock which create a mist in the air, waterfalls, sprinklers and mist from a garden hose. Always remember to have the sun at your back to see a rainbow, happy rainbow hunting!!!!!!
  • Rainbows form a complete circle, however only half is visible.  The horizon only  Picture from the web site of the Department of Physics and Astronomy, Arizona State University                                                             allows us to see half of the rainbow circle, so we see just an arc.  What causes the rainbow to have a circular formation is the way that rain droplets fall.  The rain droplets do not fall is flat sheet, however they tend to fall at various distances and speeds.  On some occasions you can see a full circle around a garden hose.
    • garza6544
      garza6544 on 03 Dec 14
       
      each rainbow is made by millions of rain droplets. the rain droplets make a reflect of light and it makes different colors. While light comes in a specific Droplet then it makes a specific color. Without milions and milions of rain droplets the rainbow cant be formed. If you only have a few rain droplets then you will only see a few colors. This is the reason why they happen after a rain storm.
  • function
    • garza6544
      garza6544 on 03 Dec 14
       
      Each rain droplet that rains  is always useful to make a rainbow because every rainbow needs to do something different to make a rainbow. The rain droplets separates the light into different colors.
garzat5774

How birds fly | Sciencelearn Hub - 0 views

sciencelearn.org.nz/...How-birds-fly

birds

shared by garzat5774 on 03 Dec 14 - No Cached
  • Birds have many physical features, besides wings, that work together to enable them to fly. They need lightweight, streamlined, rigid structures for flight. The four forces of flight – weight, lift, drag and thrust – affect the flight of birds.
  • Flying birds have: lightweight, smooth feathers – this reduces the forces of weight and drag a beak, instead of heavy, bony jaws and teeth – this reduces the force of weight an enlarged breastbone called a sternum for flight muscle attachment – this helps with the force of thrust light bones – a bird’s bones are basically hollow with air sacs and thin, tiny cross pieces to make bones stronger – this reduces the force of weight a rigid skeleton to provide firm attachments for powerful flight muscles – this helps with the force of thrust a streamlined body – this helps reduce the force of drag wings – these enable the force of lift.
  • WingsThe shape of a bird’s wing is important for producing lift. The increased speed over a curved, larger wing area creates a longer path of air. This means the air is moving more quickly over the top surface of the wing, reducing air pressure on the top of the wing and creating lift. Also, the angle of the wing (tilted) deflects air downwards, causing a reaction force in the opposite direction and creating lift.Larger wings produce greater lift than smaller wings. So smaller-winged birds (and planes) need to fly faster to maintain the same lift as those with larger wings.Wing loading tells you how fast a bird or plane must fly to be able to maintain lift: wing loading = weight/wing area (kilograms per square metre).A smaller wing loading number means the bird/plane can fly more slowly while still maintaining lift and is more manoeuvrable.
  • ...7 more annotations...
  • GlidingWhen a bird is gliding, it doesn’t have to do any work. The wings are held out to the side of the body and do not flap. As the wings move through the air, they are held at a slight angle, which deflects the air downwards and causes a reaction in the opposite direction, which is lift. But there is also drag (air resistance) on the bird’s body, so every now and then, the bird has to tilt forward and go into a slight dive so that it can maintain forward speed.
  • SoaringSoaring flight is a special kind of glide in which the bird flies in a rising air current (called a thermal). Because the air is rising, the bird can maintain its height relative to the ground. The albatross uses this type of soaring to support its multi-year voyages at sea.
  • FlappingBirds’ wings flap with an up-and-down motion. This propels them forward. The entire wingspan has to be at the right angle of attack, which means the wings have to twist (and do so automatically) with each downward stroke to keep aligned with the direction of travel.
  • Birds obtain thrust by using their strong muscles and flapping their wings. Some birds may use gravity (for example, jumping from a tree) to give them forward thrust for flight. Others may use a running take-off from the ground.
  • Different birds have different adaptive features to meet their flight needs: Some birds are small and can manipulate their wings and tail to manoeuvre easily, such as the fantail (pīwakawaka). The hawk, with its large wingspan, is capable of speed and soaring. Gannets and seabirds are streamlined to dive at high speeds into the ocean for fish. Godwits, although small, are equipped to fly long distances.
    • garzat5774
      garzat5774 on 03 Dec 14
       
      birds have some chacteristics that help them fly, birds are light weighted they have light feathers insted of heavy ones that add more weight to their bodys, they also have a beak insted of jaws that also add weight to their boddys, thay have hollow bones in their body that means that the bone has nothing inside it
    • garzat5774
      garzat5774 on 03 Dec 14
       
      birds get ready to fly by flapping their wings, some birds use "gravity" to take of some run and they jump just like an airplane and others jump from a tree and then start flapping their winds
jaime5789

BBC Nature - Dinosaurs 'shrank' regularly to become birds - 0 views

www.bbc.co.uk/28563682

shared by jaime5789 on 04 Nov 14 - No Cached
  • Huge meat-eating, land-living dinosaurs evolved into birds by constantly shrinking for over 50 million years, scientists have revealed.
    • jaime5789
      jaime5789 on 04 Nov 14
       
      Gigantic dinosaurs evolved into the small birds we know today! Scientists think that dinosaurs evolved into birds, now people also think that dinosaurs used to have feathers! Big meat eating dinosaurs such as the Spinosaurus and T-Rex may have evolved into the modern birds we know today! 
    • jaime5789
      jaime5789 on 04 Nov 14
       
      Gigantic dinosaurs evolved into the small birds that we see today! Scientists think that dinosaurs evolved into birds, now people also think that dinosaurs used to have feathers! Big meat eating dinosaurs such as the Spinosaurus and T-Rex may have evolved into the modern birds we know today! 
    • jaime5789
      jaime5789 on 04 Nov 14
       
      Gigantic dinosaurs such as the Spinosaurus and T-Rex evolved into the small birds that we see today. Scientists think that dinosaurs evolved into birds, now people also think that dinosaurs used to have feathers! 
    • jaime5789
      jaime5789 on 05 Nov 14
       
      New Paraphrase: Did you know that dinosaurs, such as the Tyrannosaurus Rex and the fearsome Velociraptor became smaller, and after 50 million years, we now think that... 
  • Previous work has shown that theropod dinosaurs, the dinosaur group which included Tyrannosaurus rex and Velociraptor and gave rise to modern birds, must have decreased in size at some point in their evolution into small, agile flyers.
    • jaime5789
      jaime5789 on 04 Nov 14
       
      Now, work has shown that two legged dinosaurs including T-Rex and the fearsome Velociraptor gave birth to the birds we see today!
    • jaime5789
      jaime5789 on 05 Nov 14
       
      The University of Adelaide, wonders a lot about dinosaurs... They found out that dinosaurs such as Spinosaurus and Utahraptor made the birds we know today! 
  • But size changes frequently occurred in dinosaur evolution, so the research team members, led by Mike Lee, from the University of Adelaide, Australia, wanted to find out if the dramatic size reduction associated with the origin of birds was unique. They also wanted to measure the rate of evolution in dinosaurs using a large data set
    • jaime5789
      jaime5789 on 04 Nov 14
       
      Research indicates that dinosaurs constantly changed, the University of Adelaide wants to find out what makes the gigantic size changes? They found out that the evolution by dinosaur is unique and amazing! 
    • jaime5789
      jaime5789 on 04 Nov 14
       
      The University of Adelaide also wants to measure the the frequency of dinosaur evolution!
    • jaime5789
      jaime5789 on 05 Nov 14
       
      The U.O.A (University Of Adelaide) wonders, "how can something so big turn into something so small?" this is due to new eras, and the evolution of dinosaurs & birds!
  • ...9 more annotations...
  • They found that the dinosaur group directly related to birds shrank rapidly from about 200 million years ago.
    • jaime5789
      jaime5789 on 04 Nov 14
       
      Scientists found out that a dinosaur species related to birds shrank in a short time and probably turned into the birds we know today! 
    • jaime5789
      jaime5789 on 05 Nov 14
       
      Dinosaur species related to birds, shrank in a short period of time! We know believe that they turned into the birds that we're familiar with today! 
  • Theropods shrunk 12 times from 163kg (25st 9lb) to 0.8kg (1.8lb), before becoming modern birds.
    • jaime5789
      jaime5789 on 05 Nov 14
       
      Really big dinosaurs started shrinking and their weight decreased slowly..
  • The researchers found theropods were the only dinosaurs to get continuously smaller.
    • jaime5789
      jaime5789 on 05 Nov 14
       
      Scientists now know that the two-legged dinosaur species were the dinosaurs that frequently got smaller! 
  • From this analysis they produced a detailed family tree mapping out the transformation of theropods to their bird descendants.
    • jaime5789
      jaime5789 on 05 Nov 14
       
      We now predit that the two-legged dinosaurs transformed into birds!
  • It traces evolving adaptations and changing body size over time and across dinosaur branches.
    • jaime5789
      jaime5789 on 05 Nov 14
       
      We now think that dinosaurs adapted into transforming into birds little by little! 
  • The researchers concluded that the evolution of the branch of dinosaurs leading to birds was more innovative than other dinosaur lineages.
    • jaime5789
      jaime5789 on 05 Nov 14
       
      We conclude that, dinosaurs probably changed into birds! 
  • this sustained shrinking and accelerated evolution of smaller and smaller body size allowed the ancestors of birds to develop traits which helped them to cope much better than their less evolved dinosaur relatives.
    • jaime5789
      jaime5789 on 07 Nov 14
       
      Dinosaurs were getting smaller they developed traits to survive. 
  • The researchers believe that miniaturisation and the development of bird-like traits had a joint influence on the evolution of the dinosaurs into today's birds. Professor Michael Benton, from the University of Bristol's school of earth sciences, said: "This study means we can't see the origin of birds as a sudden or dramatic event, with a dinosaur becoming a powered flyer overnight. "The functions of each special feature of birds changed over time - feathers first for insulation, and later co-opted for flight; early reductions in body size perhaps for other reasons, and later they were small enough for powered flight; improvements in sense of sight and enlargement of brain - even a small improvement in these is advantageous. "So perhaps it's a long-term trend associated with deputation to a new set of habitats, in the trees, to avoid predation, and to exploit new food resources."
    • jaime5789
      jaime5789 on 07 Nov 14
       
      Researchers now think that the shrinking of the dinosaurs was what developed dinosaurs into todays birds! Professor Michael from the University of Bristol says that we can't study the era of birds, just like that...
    • jaime5789
      jaime5789 on 07 Nov 14
       
      This is a long process that didn't just happen like that, you sleep, you wake up and you're a bird, no! Its a very difficult process! 
  • "Birds evolved through a unique phase of sustained miniaturisation in dinosaurs," Mr Lee said.
    • jaime5789
      jaime5789 on 07 Nov 14
       
      Birds evolved due to the dinosaurs becoming smaller!
jaime5789

"Missing Links" Found between Birds and Dinosaurs - Scientific American - 0 views

www.scientificamerican.com/...nd-between-birds-and-dinosaurs

shared by jaime5789 on 07 Nov 14 - No Cached
  • "Dinosaurs became ever more 'birdy' over time," Brusatte said, but there was no single missing link, he added. Birds and dinosaurs are like two colors in a rainbow, he said — you can recognize each, but they bleed into each other at their borders.
    • jaime5789
      jaime5789 on 07 Nov 14
       
      Scientists think that dinosaurs and birds were connected, not only because they look alike, but because their blood is identical... 
  • The new pedigree of carnivorous dinosaur evolution is the most comprehensive one ever assembled, the researchers say. The findings show that birdlike features such as wings and feathers developed slowly over tens of millions of years.
    • jaime5789
      jaime5789 on 07 Nov 14
       
      Dinosaurs evolved to birds, and it happened slowly, it took millions of years for dinosaurs to evolve into birds... Even though they were always changing, they grew feathers, then developed flying skills!
  • The label of "bird" is somewhat arbitrary, but scientists consider the feathered fossil Archaeopteryx to be the first of the group, Brusatte said. "What probably distinguishes birds is the ability to have powered flight," he said, though it's possible that other dinosaurs could fly too.
    • jaime5789
      jaime5789 on 07 Nov 14
       
      We predict that  Archaeopteryx a very early bird, that looks like a dinosaur, and lives with the dinosaurs is what made the birds of today fly! 
  • ...1 more annotation...
  • the earliest birds would have been indistinguishable from their closest relatives.
    • jaime5789
      jaime5789 on 07 Nov 14
       
      The earliest birds such as Archaeopteryx were really hard identify because they were so different compared to the birds we have today!
Isabel Herrera

Yale Scientific Magazine - Does Sugar Really Make Children Hyper? - 0 views

www.yalescientific.org/...gar-really-make-children-hyper

sugar

shared by Isabel Herrera on 03 Dec 14 - No Cached
  • Years of oral tradition say yes, but modern science disagrees.
    • Isabel Herrera
      Isabel Herrera on 03 Dec 14
       
      Parents around the world often say that sugar really causes kids to get hyper but real studies from scientists actually proves that it doesn't. 
  • Science first became interested in the link between sugar and hyperactivity when the Feingold Diet became popular in 1973. Devised by allergist Dr. Benjamin Feingold, it advocated the removal of food additives, such as dyes and artificial flavors, from children’s diets because they might lead to hyperactivity. Although this special diet did not originally mention sugar, sugar became grouped under the category of food additives due to the common belief that it affected behavior.
    • Isabel Herrera
      Isabel Herrera on 03 Dec 14
       
      Scientists became interested in sugar and how it affects kids just when the diet turned popular in 1973. Allergist Dr Benjamin Feingold has been deciding to do the "removal" of food with color dye and artificial flavors from kids diets because they might get to the point of hyperactivity.
  • Through various experiments over the years, scientists have discovered that no substantial evidence exists to support the claim that sugar causes hyperactivity.
    • Isabel Herrera
      Isabel Herrera on 03 Dec 14
       
      Even though scientists say that sugar does not cause hyperactivity, they still have no evidence for that.
  • ...2 more annotations...
  • Nonetheless, other experiments show that sugar may at least influence behavior.
    • Isabel Herrera
      Isabel Herrera on 03 Dec 14
       
      But others studies show that sugar might not affect hyper kids, but it may affect behavior 
  • Dr. Wesnes conducted a study in which he found that having a large amount of sugar for breakfast led to a severe deterioration of attention span when compared to having no breakfast or eating whole grain cereal. Dr. Tamborlane, also from Yale, reported that children given sugar had higher levels of adrenaline. A possible explanation for this effect is that since sugar is quickly absorbed into the bloodstream, blood sugar rises quickly, which can lead to higher adrenaline levels and thus symptoms similar to those associated with hyperactivity. Furthermore, children with ADHD also tend to have higher levels of insulin.
    • Isabel Herrera
      Isabel Herrera on 04 Dec 14
       
      Dr Wesnes found that if a kid has a huge pile of sugar for breakfast it can cause them to not pay attention at anything. But if you have a whole grain breakfast you can be more concentrate more. Also Dr Tamborlane says that kids that eat alot of sugar have "higher levels of adrenaline. Another way to say this is that if you eat a lot of sugar all the sugar is absorbed to the "bloodstream" and blood sugar goes up quickly, that"s why kids can have higher levels of "adrenaline."
garza6544

This Is How Cats See the World | WIRED - 0 views

www.wired.com/...cats-eye-view

cats world wired

shared by garza6544 on 04 Nov 14 - No Cached
  • For starters, cats’ visual fields are broader than ours, spanning roughly 200 degrees instead of 180 degrees, and their visual acuity isn’t as good. So, the things humans can sharply resolve at distances of 100-200 feet look blurry to cats, which can see these objects at distances of up to 20 feet. That might not sound so great, but there’s a trade-off: Because of the various photoreceptors parked in cats’ retinas, they kick our asses at seeing in dim light. Instead of the color-resolving, detail-loving cone cells that populate the center of human retinas, cats (and dogs) have many more rod cells, which excel in dim light and are responsible for night-vision capability. The rod cells also refresh more quickly, which lets cats pick up very rapid movements — like, for example, the quickly shifting path a marauding laser dot might trace. Lastly, cats see colors differently than we do, which is why the cat-versions of these images look less vibrant than the people-versions. Scientists used to think cats were dichromats — able to only see two colors — but they’re not, exactly. While feline photoreceptors are most sensitive to wavelengths in the blue-violet and greenish-yellow ranges, it appears they might be able to see a little bit of green as well. In other words, cats are mostly red-green color blind, as are many of us, with a little bit of green creeping in.
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