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guzman5862

How the Human Eye Works - 0 views

www.livescience.com/3919-human-eye-works.html

human eye works

shared by guzman5862 on 07 Nov 14 - No Cached
  • The cornea is a transparent structure found in the very front of the eye that helps to focus incoming light. Behind the cornea is a colored ring-shaped membrane called the iris. The iris has an adjustable circular opening called the pupil, which can expand or contract depending on the amount of light entering the eye. [The 7 Biggest Mysteries of the Human Body]
    • guzman5862
      guzman5862 on 07 Nov 14
       
      Here is how your eye works. There is a part of your eye named cornea and that is something that you can not see because it is transparent and that is located in the very front of your eye, and it is helpful because it makes stay in the thing your concentrated in. In the back of that there is a shaped important system in the eyes that it is named iris. The iris its very special and decorative but it also has another thing in it it is the pupil, and that its controlled by the light because when there is little light it is little and when there is more light it is more bigger.
  • guzman5862 on 07 Nov 14
     
    The cornea is a transparent structure found in the very front of the eye that helps to focus incoming light. Behind the cornea is a colored ring-shaped membrane called the iris. The iris has an adjustable circular opening called the pupil, which can expand or contract depending on the amount of light entering the eye. [The 7 Biggest Mysteries of the Human Body]
garza6544

Are Cats and Dogs Color Blind? Yes, Technically They Are - 0 views

www.petsadviser.com/...cats-dogs-color-blind

cats color blind

shared by garza6544 on 04 Nov 14 - No Cached
  • Cats and dogs are just like color blind humans, seeing some colors but not all of them. For the bright daytime light, cells known as cones are needed. Humans have three kinds of cones, enabling them to see blue, red and green.
  • Cats and dogs, on the other hand, have just two kinds of cone cells (blue and green sensitive), allowing them to see only partial color.
  • while we’re on the subject, contrary to the legend that cats can see perfectly in total darkness, they do not have those superpowers. But cats require only about one-sixth of the light that humans do, making their night vision a whole lot better than ours
  • ...2 more annotations...
  • cats, missing out on seeing life in glorious full color is really no big deal. Brightness and motion are far more important aspects of what our pets see.
    • garza6544
      garza6544 on 04 Nov 14
       
      a cat can see only 2 colors, blue and yellow correctly. for example the color red they see it like a yellow green color. Green is correct too  but it is in a different shade of green. Cats as same as dogs have only tow cells of color to make them see only some colors.  
marchand5892

Blood Flow - HowStuffWorks - 0 views

health.howstuffworks.com/...heart3.htm

howstuffworks

shared by marchand5892 on 31 Oct 14 - No Cached
  • All blood enters the right side of the heart through two veins: The superior vena cava (SVC) and the inferior vena cava (IVC) (see figure 3).The SVC collects blood from the upper half of the body. The IVC collects blood from the lower half of the body. Blood leaves the SVC and the IVC and enters the right atrium (RA) (3).When the RA contracts, the blood goes through the tricuspid valve (4) and into the right ventricle (RV) (5). When the RV contracts, blood is pumped through the pulmonary valve (6), into the pulmonary artery (PA) (7) and into the lungs where it picks up oxygen.
guzman5862

How the Human Eye Works | Cornea Layers/Role | Light Rays - 0 views

www.nkcf.org/how-the-human-eye-works

human eye works

shared by guzman5862 on 07 Nov 14 - No Cached
  • Light rays pass through a dense, transparent gel-like substance, called the vitreous that fills the globe of the eyeball and helps the eye hold its spherical shape.
    • guzman5862
      guzman5862 on 07 Nov 14
       
      When light pass to inside of your eye it is called a light ray and they travel hard, it is something that you can not see and if you touch it its like jelly but it stays there because it contacts with some part of your body, and that is named a vitreous and it puts allot of things inside the eyeball and that is important because its helpful for the so that it can keep his original form not for the eye to change of shape like (Rectangle, Square).
  • guzman5862 on 07 Nov 14
     
    Light rays pass through a dense, transparent gel-like substance, called the vitreous that fills the globe of the eyeball and helps the eye hold its spherical shape.
CLudio Villarreal

Cysticercosis - Wikipedia, the free encyclopedia - 0 views

en.wikipedia.org/...Cysticercosis

Brain worm in humans tan tan!

shared by CLudio Villarreal on 31 Oct 14 - Cached
  • Cysticercosis is a tissue infection caused by the pork tapeworm (Taenia solium).[1] People may have little or no symptoms for years, develop approximately one to two centimeter painless solid bumps in the skin and muscles, or have neurological symptoms if the brain is affected.[1][2] After months or years these bumps can become painful and swollen then resolve.[2] When cysts form in the brain it is known as neurocysticercosis.[3] In the developing world this is one of the most common cause of seizures.[2]
  • The disease is usually spread by eating foods or water that contains the tapeworm's eggs.[1] The foods most commonly believed to be the cause are uncooked vegetables.
  • Taeniasis is due to eating cysts in poorly cooked pork.
  • ...10 more annotations...
  • Preventing the infection involves: cooking pork well, proper toilets and improved access to clean water.
  • In some cases, cysticerci may be found in the globe, extraocular muscles, and subconjunctiva. Depending on the location, they may cause visual difficulties that fluctuate with eye position, retinal edema, hemorrhage, a decreased vision or even a visual loss.[7][12]
  • Subcutaneous cysts are in the form of firm, mobile nodules, occurring mainly on the trunk and extremities.[13] Subcutaneous
  • Cysticercosis also affects pigs and cows but rarely causes symptoms as most do not live long enough.[1] The disease has occurred in humans throughout history.[5]
  • nodules are sometimes painfu
  • Cysticerci can develop in any voluntary muscle in humans.[7] Invasion of muscle by cysticerci can cause myositis, with fever, eosinophilia, and muscular pseudohypertrophy, which initiate with muscle swelling and later progress to atrophy and fibrosis.[7] In most cases, it is asymptomatic since the cysticerci die and become calcified.
  • The term neurocysticercosis is generally accepted to refer to cysts in the parenchyma of the brain. It presents with seizures and, less commonly, headaches.[8] Cysticerca in brain parenchyma are usually 5–20 mm in diameter. In subarachnoid space and fissures, lesions may be as large as 6 cm in diameter and lobulated.
    • CLudio Villarreal
      CLudio Villarreal on 04 Nov 14
       
      Cysticerosis is a disease in the brain tissue that is caused by the pork tapeworm.Some people have few symptoms and some may have many for various years.People get little bumps on the skin and muscle, or you could have neurological symptoms if the brain is affected by the worm.After the years the bumps become painful and after some time they resolve.A cluster of cells then form in the brain, and that is one of the most common cause of surgeries in the world of today.The desiase is usually spread by vegetables that contain the tapeworms eggs, although it is believed that the most common cause of disease are eating uncooked vegetables.
    • CLudio Villarreal
      CLudio Villarreal on 06 Nov 14
       
      Some of the time, a cluster of cells form in the eye, when the globe gets infected it may suffer visual loss.The bumps often occur in the trunk and the extremities.
    • CLudio Villarreal
      CLudio Villarreal on 07 Nov 14
       
      There is a vaccine for pigs to try and remove Cystisercosis. These vaccines prove to be very effective, these treatments can completely destroy cysticercosis. The cure is developing but can you imagine injecting all the pigs in the world? That would require a lot of money and it would be far grater challenge finding all the pigs in the world.
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!
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.
garza6544

How do broken bones heal? - HowStuffWorks - 0 views

health.howstuffworks.com/...heal-broken-bones.htm

bones howstuffworks

shared by garza6544 on 31 Oct 14 - No Cached
  • If you experience engine trouble, you take your car to a mechanic. If your pipes leak, you call a plumber. And if you fracture a leg, the usual course of action is to visit a doctor. But unlike other things that may break in life, bones begin healing on their own before you even set foot in a waiting room.The human body possesses amazing healing powers that enable it to bounce back from a vast array of illnesses and injuries. Sometimes broken bones can heal so thoroughly within a few months that even an x-ray can't determine the original fracture line.Doctors often play a vital, sometimes lifesaving, role in a bone's healing process. But, these experts basically help the body heal itself. Doctors provide optimal conditions for bone repair and healing to take place. The rest is up to your cells.But how does this amazing biological process work? How can a fractured limb grow back to its former strength? To understand, you first have to take a closer look at just what bones are made of and how alive they really are.
morales5853

Animals & Habitats - 0 views

www3.canisius.edu/...SOFTCHALKGOOD_print.html

Animals Habitats Nature Surviving

shared by morales5853 on 06 Nov 14 - No Cached
  • Some animals eat plants or other animals for food and may also use plants for shelter and nesting.
  • A habitats is a place where living things live and how they survive in that area.
  • A habitats is a place where living things live and how they survive in that area.
  • ...5 more annotations...
  • A habitats is a place where living things live and how they survive in that area.
  • A habitats is a place where living things live and how they survive in that area.
  • A habitats is a place where living things live and how they survive in that area.
    • morales5853
      morales5853 on 06 Nov 14
       
      Animals only live in the habitat they know they will survive in
  • Plants, animals, and even humans choose habitats for many different reasons, depending on their needs.
    • morales5853
      morales5853 on 06 Nov 14
       
      Living creatures and thing decide where to live in, all depending on what they think their needs would be. For example a human would like to be were there are jobs and markets where he can survive not in the middle of the desert where they can starve and die. 
Isabel Herrera

How Your Tongue Works - HowStuffWorks - 0 views

health.howstuffworks.com/...tongue.htm

howstuffworks tongue taste

shared by Isabel Herrera on 07 Nov 14 - No Cached
  • There's a famous myth that the tongue is the body's strongest muscle. It's not really true -- and not by any definition of strength. But that shouldn't make the tongue any less impressive.
    • Isabel Herrera
      Isabel Herrera on 07 Nov 14
       
      Everybody says that the tongue is the strongest muscle that you have, but that's not exactly true. But that can't tell you that the tongue is not impressive, because it is. 
  • The tongue is an accessory digestive organ which, along with the cheeks, keeps food between the upper and lower teeth until it's sufficiently masticated, or chewed.
    • Isabel Herrera
      Isabel Herrera on 07 Nov 14
       
      The tongue is a "accessory digestive organ" that helps food stay between all your teeth until it's entirely chewed.
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.
Regina Cantu

Why do we get sick? - HowStuffWorks - 2 views

science.howstuffworks.com/...get-sick.htm

Sick Health

shared by Regina Cantu on 31 Oct 14 - No Cached
  • As an example, think of a person who has a cold. That person may cough into his or her hand and then touch a doorknob, thus placing the cold virus on that doorknob. The virus may die on the doorknob, but it's also possible that the next person to touch the doorknob will pick it up. If that person then touches food with the unwashed hand and consumes the food, the virus is now inside the body.
  • The earliest physicians thought that illness and disease were a sign of God's anger or the work of evil spirits. Hippocrates and Galen advanced the concept of humorism, a theory which held that we get sick from imbalances of the four basic substances within the human body, which they identified as blood, phlegm, black bile and yellow bile. Paracelsus, a Renaissance-era physician, was one of the first to posit that sickness comes from outside sources, rather than from within.Today, we know that there are two major kinds of diseases: infectious and non-infectious.
    • Regina Cantu
      Regina Cantu on 04 Nov 14
       
      For example, if a person has gotten a cold and sneezes into their hand, then suddenly they touch the light switch, They leave the cold there, it may also be that the cold virus dies there, but it may also be that the next person who touches the light switch gets it in their hands. If they go to eat, and they don't wash their hands and they touch what they are going to eat they get it in their mouth and now they have the cold.
Isabel Herrera

How Taste Works - HowStuffWorks - 0 views

health.howstuffworks.com/...taste.htm

taste works howstuffworks tongue

shared by Isabel Herrera on 31 Oct 14 - No Cached
  • In recent years, scientists have expanded the definition of taste, allowing one, and possibly two, primary tastes into the original canon of four -- sour, bitter, sweet and salty.
    • Isabel Herrera
      Isabel Herrera on 04 Nov 14
       
      Scientists have been researching a lot about tongue and what flavors do they sense. But finally they have found the four primary flavors that the taste buds sense.  Sour, bitter, sweet, and salty.
lobo5879

Sleep Facts: 20 Facts about Sleep you didn't know ←FACTSlides→ - 1 views

www.factslides.com/s-Sleep

sleep facts

shared by lobo5879 on 31 Oct 14 - No Cached
  • Humans spend a third of their life sleeping. That's about 25 years.
    • lobo5879
      lobo5879 on 05 Nov 14
       
      did you now that humnans spend 25 yeras of theire life and cats spend 70% of ther elofes sleeping
  • The record for the longest period without sleep is 11 days.
    • lobo5879
      lobo5879 on 05 Nov 14
       
      did you know that the record of a humnan without sleping is 11 fays
  • Sleeping less than 7 hours each night reduces your life expectancy.
    • lobo5879
      lobo5879 on 04 Nov 14
       
      did you know that sleping less than 7 hrs evry night can take time of youre life.
  • ...8 more annotations...
  • Some Deaf People Make Sign Language in Their Sleep.
    • lobo5879
      lobo5879 on 05 Nov 14
       
      id you know that the people that cant hear make sign anguege when they are sleeping
  • Before alarm clocks were invented, there were "knocker-ups" who went tapping on client's windows with long sticks until they were awake.
    • lobo5879
      lobo5879 on 04 Nov 14
       
      Did you know that before alarm clockd=s were invented they used to be a person that tapped you on the window to wake you up.
  • It's impossible to sneeze while sleeping.
    • lobo5879
      lobo5879 on 05 Nov 14
       
      Did you know that you cant sleep when you are slepping they say it is imposible
  • Most people can survive for up to 2 months without eating, but people can only live up to 11 days without sleeping.
    • lobo5879
      lobo5879 on 04 Nov 14
       
      did you know that most people can suvive without eating for 2 months and without sleping 11 days
  • Sea otters hold hands when they sleep so they don't drift away from each other.
    • lobo5879
      lobo5879 on 04 Nov 14
       
      did you know that sea otters hold theyre hand while they are slleping so they dont get lost during theyre slep
  • People experience better sleep during the new moon and worse sleep during a full moon, a study found.
    • lobo5879
      lobo5879 on 04 Nov 14
       
      Did you know that people sllep vetter during the new moon than the ful moon
  • Cats sleep for 70% of their lives.
  • Lack of sleep can cause weight gain of 2 pounds (0.9 kg) in under a week.
    • lobo5879
      lobo5879 on 04 Nov 14
       
      did you know that when you sleep a lot you can gain pounds in a week you can gain 2 pounds in a week
Eugenio Ferrara

11 Facts About Global Poverty | DoSomething.org | America's largest organization for yo... - 0 views

www.dosomething.org/...11-facts-about-global-poverty

poverty issues

shared by Eugenio Ferrara on 03 Mar 15 - No Cached
  • Nearly 1/2 of the world’s population — more than 3 billion people — live on less than $2.50 a day. More than 1.3 billion live in extreme poverty — less than $1.25 a day.
  • 1 billion children worldwide are living in poverty. According to UNICEF, 22,000 children die each day due to poverty.
  • As of 2011, 19 million children worldwide are not vaccinated.
  • ...2 more annotations...
  • 1/4 of all humans live without electricity — approximately 1.6 billion people.
  • 80% of the world population lives on less than $10 a day.
Esteban Cantu

Jupiter Facts - The Planet Jupiter - Jupiter For Kids - 0 views

www.planetsforkids.org/planet-jupiter.html

jupiter

shared by Esteban Cantu on 07 Nov 14 - No Cached
  • Although Jupiter’s orbit, and therefore its year, is so much longer than the Earth’s, its day is much shorter.  The Earth turns on its own axis, turning away from the Sun and so giving us day and night, once every 24 hours.  Jupiter spins round much faster, turning on its axis once every 9.84 hours!
    • Esteban Cantu
      Esteban Cantu on 07 Nov 14
       
      Jupiter orbits every 9 hours, while earth takes much more, jupiter's year is longer than earth's.
    • Esteban Cantu
      Esteban Cantu on 07 Nov 14
       
      The first human that discovered the  moons of jupiter was a man named Galileo, that lived from 1564-1642.
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