the only mammals naturally capable of flight
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Bat - Wikipedia, the free encyclopedia - 0 views
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Bats are mammals
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Megabats eat fruit, nectar or pollen
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microbats eat insects, blood (small quantities of the blood of animals), small mammals, and fish
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Mother bats usually have only one offspring per year
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they are viviparous
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Young microbats become independent at the age of 6 to 8 weeks
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At the age of two years, bats are sexually mature
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megabats not until they are four months old
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A single bat can live over 20 years
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Most microbats are active at night or at twilight
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Bats rarely fly in rain
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the rain interferes with their echo location
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Only three species sustain themselves with blood.
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Only 0.5% of bats carry rabies
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Bats have very small teeth and can bite a sleeping person without being felt
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Bats are closely associated with vampires
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Bats are also a symbol of ghosts, death, and disease
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Chinese lore claims the bat is a symbol of longevity and happiness
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the bat is a trickster spirit
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In Western Culture, the bat is often a symbol of the night and its foreboding nature
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A measure of the success of bats is their estimated total of about 1,100 species worldwide, accounting for about 20 percent of all mammal species.
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Grolier Multimedia Encyclopedia - 0 views
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basic laws of physics dictate that energy is conserved and can only be changed from one form to another or into matter.
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Fuel, on the other hand, is the accumulation of matter and therefore represents a store of energy.
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released in the form of heat when the fuel is burned in chemical or nuclear reactions
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cannot be reversed to regenerate the original fuel mass
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a fuel problem does exist
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If the supply of fuel is finite, not only will there be no energy supply when the fuel is exhausted
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Finite means: a form of a verb that can occur as the head of a sentence. In Sam wants to leave, wants is finite, leave is non-finite.
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all other processes that depend on it will cease
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Several factors combine to make the problem an urgent one
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World population
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demand for energy will also increase
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coal, oil (petroleum), natural gas, uranium, and fuel woodâis limited and insufficient to sustain rapid rates of development.
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debate about the exact length of time available before the effects of a worldwide shortage become apparent
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shortage will occur.
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geothermal energy, hydroelectric power, peat, ocean thermal energy, solar energy, tidal energy, wind power, and fuel wood.
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replenish themselves naturally in a relatively short time and will therefore always be available.
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Renewable energy resources
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indirectly responsible for many other renewable energy sources.
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ocean currents and winds are results of the uneven distribution of solar radiation over the Earth's surface
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winds in turn produce waves whose energy can be utilized
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windmills and wind power
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ocean thermal energy, solar heating of the upper layers of the ocean produces temperature gradients that can be harnessed to generate electricity
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Sun also powers the hydrologic cycle, in which ocean water is evaporated, transported over the continents, and precipitated as rain or snow to form rivers
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flow energy produces hydroelectric power.
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energy locked in such renewable fuel sources as wood and peat is derived from the Sun by the process of photosynthesis.
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renewable energy source is geothermal energy
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arises through the leakage of heat from the Earth's interior to the surface
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over the entire surface of the Earth at a very low average rate, leakage is much higher in certain locations.
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Yellowstone National Park
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Iceland, Italy, and New Zealand.
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possible to tap the heat and use it for human purposes.
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Nonrenewable resources originate from two processes: (1) photosynthesis, which occurred many millions of years ago, followed by the fossilization of the plant and animal life that resulted, and (2) the formation of the Earth itself.
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fossil fuelsâcoal, oil (petroleum), and natural gas;
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produced the fuels for nuclear energy, such as uranium for fission and lighter elements for fusion
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irreplaceable fuels represent an energy capital that must be invested wisely.
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A cleaner-burning fuel than oil, natural gas seemed to be in abundant supply at the turn of the 21st century and, with the greatly enlarged network of gas pipelines, was rapidly growing in use.
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nearly total dependence on fossil fuels and hydroelectricity ensures that efforts to solve energy problems by switching to alternative sources will have to overcome a great deal of inertia, both economic and psychological.
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sources as solar power, wind power, and synthetic fuels suffer from the serious drawback that few major installations now exist.
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handicapped by the engineering problems of converting the energy to a form useful to human beings.
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solar energy reaches the top of the atmosphere in amounts 10,000 times greater than all human production of energy, it reaches the Earth's surface at rates of only about 80 to 250 W/m2, and considerably less on cloudy days.
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arge-scale system based on solar-collector panels will be physically huge, causing problems of maintenance and land use
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Wind power, wave power, and ocean-thermal-generation sources suffer from similar difficulties
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Even though there are some difficulties with working towards the alternative fuels, it may prove to be more efficient for smaller things (heat and power to small communities or single buildings) in the long run
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Drugs in sport-Key text - 0 views
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Only the gifted, only the dedicated, only the best will win.
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Modern sport is plagued by suspicions that many top athletes resort to drug-taking â doping â to enhance their performance. They use anabolic steroids, human growth hormone, erythropoietin (EPO), beta-blockers, stimulants or diuretics.
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krakatoa - 0 views
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Until the night of August 26-27, 1883, Krakatau had an area of 47 sq km (18 sq mi); at that time, a volcanic eruption and its consequent explosions destroyed most of the island, so the present area is only 15 sq km (6 sq mi)
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Dog and Cat Owners Gain Health Benefits - BestFriendsPetCare.com - 0 views
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Good for body Some of the studies show that owning a pet can have very real physical benefits for their owners. These include: * Pet owners have lower blood pressure. It has long been known that the act of stroking a pet can reduce blood pressure. But a study at the State University of New York at Buffalo found that the beneficial effects continue even when the pet is not present. The study, which looked at a group of stockbrokers with hypertension, concluded that just owning a pet can help lower blood pressure -and keep it lower, even in stressful settings. * Pet owners have lower blood cholesterol levels. A study of more than 5,400 people conducted by Australia's Baker Medical Research Institute found that pet owners had not only lower blood pressure, but also lower levels of blood cholesterol and triglycerides in comparison to the non-pet owners, reducing the risk of heart disease. * Pet owners have a higher survival rate after serious illness. Two studies have found that heart attack patients who owned the pets were significantly more likely to be alive a year after they were discharged from the hospital than those who didn't. What's more, a study conducted at City Hospital in New York found that the presence of a pet affected survival rate even more than having a spouse or friends. Patients in hospitals or nursing homes who have regular visits from their pets have shown to be more receptive to treatment. The need to care for their pet gives them reason to recover and the will to live. * Pet owners have fewer doctors' visits. Studies conducted by Cambridge University in England and at the University of California at Los Angeles have found that pet ownership corresponds to overall improved health and fewer medical care visits. A study of Medicare patients also found that seniors who own dogs go to the doctor less than those who do not. Even the most highly-stressed older dog owners in the study had 21 % fewer physician's visits than non-dog ow
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PowerSearch Document - 0 views
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51 per cent of its earnings over the past year came from digital sales.
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falling CD sales and illegal downloading.
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"Some fans only want to buy the physical disc, some only want to buy a ringtone and a T-shirt, others just want a concert ticket, others want to buy a digital album.
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worldwide sales of digital music grew by 40 per cent last year
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CDs would continue to narrow.
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"Record labels are continually diversifying and moving away from CDs because they know that fans have completely changed the way they are buying music.''
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fans buy different things of music: physical discs, ringtones and a t-shirt, a concert ticket, or a digital album; worldwide sales of digital music grew by 40% last year
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Vampire bats recognise their prey's breathing ( Vampire bats the only mammals to feed ...) - 0 views
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Vampire bats, the only mammals to feed exclusively on blood, including human blood, recognize their prey by the sound of its breathing.
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Vampire bats feed on the same prey over several nights
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bats use breathing sounds to identify their prey in the same way as humans use voice to recognise each other.
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koala info. - 0 views
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tree-dwelling marsupial of coastal eastern Australia. The koala is about 60 to 85 cm (24 to 33 inches) long and weighs up to 14 kg (31 pounds) in the southern part of its range (Victoria) but only about half that in subtropical Queensland to the <langlabel name
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eucalyptus trees
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1.3 kg (3 pounds) of leaves daily
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only member of the family Phascolarctidae
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youngster
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called a joey
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The Benefits of Living with a Cat - FamilyEducation.com - 0 views
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Children can learn a great deal from owning a cat, but only if an adult models responsible behavior for the child.
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James Naismith: Biography from Answers.com - 0 views
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James Naismith Basketball is the only major modern sport that was'invented' by an individual. It did not evolve from another sport, such as football
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Behaviorism Tutorial - Part 1 - Section 2 - 0 views
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classical behaviorism formally and explicitly defined psychology as the science of behavior
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metaphysical behaviorism subscribes to the view that the only things that are real are things that are publicly observable
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this basically means that only things you can see exist, so it really puts a damper on all that happiness and love and sorrow and all that junk
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metaphysical behaviorism
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if the existence of mental phenomena is denied because they are unobservable, is the existence of all unobservables, including unobservable experiences, denied?
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The question that arose from metaphysical behaviorism was again whether we really want to deny the existence or reality of all phenomena that aren't publicly observable
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philosophical behaviorism emphasizes that mental concepts in psychological explanations mean nothing more than dispositions to engage in publicly observable behavior
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logical behaviorism emphasizes that mental concepts in psychological explanations must be verified in terms of publicly observable behavior
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Investing 101: Stocks go up, stocks go down, but they average 10% a year - USATODAY.com - 0 views
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It's important to remember that this doesn't mean the stock market returns exactly 10% a year, every year. It's actually unusual for the market to return exactly 10% in a given year. The S&P 500 has only posted a return of between 10.0% and 10.9% four times since 1926 and only returned exactly 10% once, in 1966, according to S&P data that includes dividends.
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Stock returns are wild and unpredictable. Since 1927, the S&P 500 stock index has gained 10.4% a year on average. But in any given year it could be up 29.9% or down 9.0% or somewhere in between, says IFA.com.
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To do that, it's important to understand the power of diversification and the benefits of owning many types of stocks, from large value-priced stocks to small value-priced stocks. Diversification lets you minimize the risk posed by a single stock or type of stock and lets you still get your share of the market's return.
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You must also understand that to claim your 10% return, you need to be invested for a number of years and ignore short-term stock movements.
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Bat World - 0 views
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Bats are not flying mice; they are not even remotely related to rodents. Bats are such unique animals that scientists have placed them in a group all their own, called 'Chiropteraâ, which means hand-wing. Bats are grouped with primates and lemurs in a grand order called Archonta.
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Bats are not blind. Most bats can see as well as humans. Fruit bats have eyesight that is adapted to low-light, much like cats. Fruit bats also see in color.
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If a bat swoops toward you, itâs probably after the mosquito that is hovering just above your head - not your hair.
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Bats are not ugly or dirty. Most bats have very cute faces, some even resemble deer, rabbits, and little Chihuahuas. Like cats, bats spend an enormous amount of time grooming their fur, keeping it soft and silky.
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Not all bats are vampires. Of the worldâs 1100+ species, only three are vampire bats limited mostly to Latin America. Vampire bats are very small (about the size of a package of M&Ms). Vampire bats do not attack humans or suck our blood; they prefer to get their teaspoon-sized meals from other animals.
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Bats are wild animals, and all wild animals can be dangerous. Additionally, grounded bats are more likely to be sick so they should never be rescued bare-handed.
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Bats are shy, gentle, and intelligent. They are among the slowest reproducing animals on earth. Most bat species have only one live young per year.
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Krakatoa's baby - 0 views
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yes krakatoas baby erupted many times (only minor eruptions tho) and it still erupts daily to this day.
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Grolier Online - 0 views
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only living member of the family Phascolarctidae, in the order Diprodontia, class Mammalia.
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eastern Australia
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skull is flattened on the sides
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one offspring
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live more than 10 years in the wild
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slow moving and defenseless
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Of the 350 species of eucalyptus, moreover, koalas will eat the leaves of only 20 and prefer those of just 5 species.
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its headquarters is in New York City.
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The Montreal Canadiens have been the NHL's most successful team, winning the Stanley Cup 22 times through 2004.
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the Edmonton Oilers, New England Whalers (now the Carolina Hurricanes), Quebec Nordiques (now the Colorado Avalanche), and Winnipeg Jets (now the Phoenix Coyotes). The NHL now has 30 teams.
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The NHL was founded in 1917.
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The most common type of ovarian cancer is epithelial, accounting for approximately 90% of all ovarian cancers. Epithelial ovarian cancers appear to arise from the surface of the ovary and spread by shedding cancer cells, which are then implanted throughout the lower abdomen. The disease usually spreads without notable symptoms, accounting for the fact that over 70% of epithelial ovarian cancers are diagnosed after the tumor has already spread beyond the ovaries. The other types of ovarian cancer are germ cell and sex cordâstromal tumors.
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Epidemiologic studies have shown that risk factors for developing this cancer include increased age, never giving birth, infertility, a history of breast cancer or endometrial cancer, and a family history of ovarian cancer.
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Western church-December 25 Eastern church-January 6 celebrated in a twelve-day festival
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Rap music is a combination of rhymed lyrics spoken over rhythm tracks and pieces of recorded music and sounds called samples, taken from older records.
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Rap music is a combination of rhymed lyrics spoken over rhythm tracks and pieces of recorded music and sounds called samples, taken from older records.
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telling about the most common ovarian cancerand how you might have a chance of getting it
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Blue Sky - Why is the Sky Blue? - 0 views
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end of the spectrum are the reds and oranges. These gradually shade into yellow, green, blue, indigo and violet. The colors have different wavelengths, frequencies, and energies. Violet has the shortest wavelength in the visible spectrum. That means it has the highest frequency and energy. Red has the longest wavelength, and lowest frequency and energy. LIGHT IN THE AIR Light travels through space in a straight line as long as nothing disturbs it. As light moves through the atmosphere, it continues to go straight until it bumps into a bit of dust or a gas molecule. Then what happens to the light depends on its wave length and the size of the thing it hits. Dust particles and water droplets are much larger than the wavelength of visible light. When light hits these large particles, it gets reflected, or bounced off, in different directions. The different colors of light are all reflected by the particle in the same way. The reflected light appears white because it still contains all of the same colors. Gas molecules are smaller than the wavelength of visible light. If light bumps into them, it acts differently. When light hits a gas molecule, some of it may get absorbed. After awhile, the molecule radiates (releases, or gives off) the light in a different direction. The color that is radiated is the same color that was absorbed. The different colors of light are affected differently. All of the co
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d after Lord John Rayleigh, an English physicist, who first described it in the 1870's.) WHY IS THE SKY BLUE? The blue color of the sky is due to Rayleigh scattering. As light moves through the atmosphere, most of the longer wavelengths pass straight through. Little of the red, orange and yellow light is affected by t
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As you look closer to the horizon, the sky appears much paler in color. To reach you, the scattered blue light must pass through more air. Some of it gets scattered away again in other directions. Less blue light reaches your eyes. The color of the sky near the horizon appears paler or white.
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THE BLACK SKY AND WHITE SUN On Earth, the sun appears yellow. If you were out in space, or on the moon, the sun would look white. In space, there is no atmosphere to scatter the sun's light. On Earth, some of the shorter wavelength light (the blues and violets) are removed from the direct rays of the sun by scattering. The remaining colors together appear yellow. Also, out in space, the sky looks dark and black, instead of blue. This is because there is no atmosphere. There is no scattered light to reach your eyes. WHY IS THE SUNSET RED? As the sun begins to set, the light must travel farther through the atmosphere before it gets to you. More of the light is reflected and scattered. As less reaches you directly, the sun appears less
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The sky around the setting sun may take on many colors. The most spectacular shows occur when the air contains many small particles of dust or water. These particles reflect light in all directions. Then, as some of the light heads towards you, different amounts of the shorter wavelength colors are scattered out. You see the longer wavelengths, and the sky appears red, pink or orange.
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RE ABOUT:THE ATMOSPHERE WHAT IS THE ATMOSPHERE? The atmosphere is the mixture of gases and other materials that surround the Earth in a thin, mostly transparent shell. It is held in place by the Earth's gravity. The main components are nitrogen (78.09%), oxygen (20.95%), argon (0.93%), and carbon dioxide (0.03%). The atmosphere also contains small amounts, or traces, of water (in local concentrations ranging from 0% to 4%), solid particles, neon, helium, methane, krypton, hydrogen, xenon and ozone. The study of the atmosphere is called meteorology. Life on Earth would not be possible without the atmosphere.
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d increases with increasing altitude. The increase is caused by the absorption of UV radiation by the oxygen and ozone. · The temperature increase with altitude results in a layering effect. It creates a global "inversion layer", and reduces vertical convection. Mesosphere - Extends out to about 100 km (65 miles) · Temperature decreases rapidly with increasing altitude. Thermosphere - Extends out to about 400 km ( 250 miles)
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hes the Earth, 30% is reflected back into space by clouds and the Earth's surface. The atmosphere absorbs 19%. Only 51% is absorbed by the Earth's surface. We are not normally aware of it but air does have weight. The column of air above us exerts pressure on us. This pressure at sea level is defined as one atmosphere. Other equivalent measurements you may hear used are 1,013 millibars, 760 mm Hg (mercury), 29.92 inches of Hg, or 14.7 pounds/square inch (psi). Atmospheric pressure decreases rapidly with height. Pressure drops by a factor of 10 for every 16 km (10 miles) increase in altitude. This means that the pressure is 1 atmosphere at sea level, but 0.1 atmosphere at 16 km and only 0.01 atmosphere at 32 km. The density of the lower atmosphere is about 1 kg/cubic meter (1 oz./cubic foot). There are approximately 300 billion billion (3 x 10**20, or a 3 followed by 20 zeros) molecules per cubic inch (16.4 cubic ce
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ers). At ground level, each molecule is moving at about 1600 km/hr (1000 miles/hr), and collides with other molecules 5 billion times per second. The density of air also decreases rapidly with altitude. At 3 km (2 miles) air density has decreased by 30%. People who normally live closer to sea level experience temporary breathing difficulties when traveling to these altitudes. The highest permanent human settlements are at about 4 km (3 miles). LAYERS OF THE ATMOSPHERE The atmosphere is divided into layers based on temperature, composition and electrical properties. These layers are approximate and the boundaries vary, depending on the seasons and latitude. (The boundaries also depend on which "authority" is defining them.) LAYERS BASED ON COMPOSITION Homosphere
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LAYERS BASED ON TEMPERATURE Troposphere - Height depends on the seasons and latitude. It extends from ground level up to about 16 km (10 miles) at the equator, and to 9 km (5 miles) at the North and South Poles. · The prefix "tropo" means change. Changing conditions in the Troposphere result in our weather. · Temperature decreases with increasing altitude. Warm air rises, then cools and falls back to Earth. This process is called convection, and results in huge movements of air. Winds in this layer are mostly vertical. · Contains more air molecules than
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· The air is very thin. · The prefix "strato" is related to layers, or stratification. · The bottom of this layer is calm. Jet planes often fly in the lower Stratosphere to avoid bad weather in the Troposphere. · The upper part of the Stratosphere holds the high winds known as the jet streams. These blow horizontally at speeds up to 480 km/hour (300 miles/hour) · Contains the "ozone layer" located
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gen we need to breath. But it also serves other important functions. It moderates the planet's temperature, reducing the extremes that occur on airless worlds. For example, temperatures on the moon range from 120 °C (about 250 °F) in the day to -170 °C (about -275 °F) at night. The atmosphere
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sounds good, by the way am i annoying you with my sticky note??? well, TOO BAD!!!!!!
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List of breakdance moves - Wikipedia, the free encyclopedia - 0 views
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The Top Rock is a combination of steps done while standing up. This is the entry dance that Bboys and Bgirls use to start their set. These steps are done before you do a power set or before you go down to the floor. This is the breaker's chance to show how well he or she can rock the beat and/or make gestures to intimidate their opponent
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The foundational footwork sequence. Although many variations exist that either add or subtract steps in the sequence, the 6-step is the most basic form of downrock.
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A Power Move is any type of move in Bboying which requires spinning and/or rotating in a way that can be done so in multiple rounds. All Power Moves (or series of a type of Power Move) can be connected in combos to form a "Power Combo". Breakers that use mostly Power combos in there sets are commonly known as "Power Heads". Example: Flare-Air Flare-Elbow Air Flare-Air Flare-1990...etc Or-Air Flare 1.5-Babymill-Windmill-Swipe-Windmill-Halo-Headspin...etc The possible number of combinations are endless and only limited by stamina, strength and imagination. In 2002 The Guinness Book of World Records began tracking number of power move rotations for their world record standings. At that time Canadian Gregory Burbidge broke records for Air Flare, Headspins, and Elbow Airflares. American Lauren Jacob held the record for Chair Flares. American Laura Derrick held the record for Tappingmills. Nicole Jones (nationality unknown) held the record for Munch Airflares. In 2004 Guinness removed these titles from their records. At the time Gregory Burbidge was the only one who still held records from the original group.
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Hong Kong's population crisis deepens as fewer women have children | Visitbulgaria.info - 0 views
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Hong Kong's population crisis is likely to worsen as a survey showed Thursday that nearly four in 10 women want only one child or no children at all.
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world's lowest birth rates.
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Twenty-six per cent of 1,500 women interviewed said they wanted only one child
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Almost one in three women aged 35 to 39 in the city of 6.9 million said they had fewer children than they wanted but many said they did not want to risk a late pregnancy.
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Pet Rx: The Health Benefits of Cats and Dogs | AHealthyMe.com - 0 views
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Older people often lack social networks and recreational opportunities, and having a cat on their laps can be an immense boost to their health and happiness. Studies show that pets not only foster feelings of love and security but can also help lower a person's blood pressure, heart rate, and stress level. For seniors, these little benefits add up to an impressive advantage. A Canadian study of nearly 1,000 adults age 65 and over found that pet owners were more physically fit and less likely to suffer a decline in health in the course of a year. The trend held up even after researchers adjusted for the fact that pet owners tended to be younger and more active than non owners. Interestingly, cat owners enjoyed the same rewards as dog owners, strong evidence that pets can improve your health even if they aren't constantly begging for walks.