Vampire Bats!

Night lover
The vampire bat attacks at night. This is when its victims—mostly cattle and other livestock—sleep.

What makes them different than other bats ?

Unlike other bats, the vampire bat rests lightly on its thumbs and small footpads. This allows it to land softly, bite its victim, and quietly suck blood. It does all this without waking its victim. The vampire bat can consume an enormous amount of blood. Sometimes it is so full it cannot fly away when it is finished.

Do they bite human?

• The vampire bat rarely feeds on human blood.

Common characteristics of vampire bats:

• The common vampire bat is mostly found in eastern Mexico. It has grayish-brown fur, pointed ears, and a short muzzle. It does not have a tail. Its incisor teeth are large and razor-sharp. They make a small wound to take blood. The saliva of vampire bats contains substances that stop the blood from clotting.Vampire bat colonies may contain up to 2,000 bats. But groups of about 100 are more common. Both sexes roost together. They often share a cave with other bat species. Unlike other bats, the mother does not carry the young around with her. Instead, the babies stay in the roost while the mother looks for food. The vampire bat's bite is not harmful to the victim. Nor is the loss of blood. What is dangerous is thesk of rabies. In Mexico, cattle are vaccinated against rabies because of vampire bats

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"Common Vampire Bat." Amazing Animals of the World. Grolier Online, 2012. Web. 18 Nov. 2012.

The Origination of DVD

I remember when I watched a movie using DVD disk I was fascinated! Because of it’s capability of delivering clear and sharp picture. Experience was way better than VHS tape. I think DVD disk is of the coolest inventions. So today I would like to share something about DVD. Hope you like it and as I always believe know facts are amazing!

DVD

• A DVD is a round, flat disc that stores information. DVD’s mainly used to hold movies. But computer programs and other information may also be stored on a DVD.A DVD is the same size as a compact disc (CD). Both are about 4 3/4 inches (12 centimeters) across. But a DVD can store much more information than cab a CD. A DVD is read by a special disk drive or player+

 When and where it become available?

• The first DVD players and discs were available in November 1996 in Japan, March 1997 in the United States, 1998 in Europe and in 1999 in Australia*. Also, DVD was developed by Sony, Toshiba and Panasonic

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+ "DVD."  World Book Discover. World Book, 2012. Web. 24 Nov. 2012

*http://didyouknow.org/dvdhistory/

World's First Commercial Movie!

• In 1895, the world's first commer movie screening takes place at the Grand Cafe In Paris.

Root of the first movie technology

• The film was made by Louise and Auguste Lumiere, two French brothers whol developed a camera-projector called the Cinematographe. The Lumiere brothers unveiled their invention to the public in March 1895 with a brief film showing workers leaving the Lumiere factory

• Movie technology has its roots in the early 1830s, when joseph Plateau of Belgium and Simon Stampfer of Austria simultaneously developed a device called phenakistoscope, which incorporated a spinning disc with slots through which a series of drawings could be viewed, creating the effect of a single image.

In America

• The Lumieres opened theaters (known as cinemas) in 1896 to show their work and sent crews of cameramen around the world to screen films and shoot new material. In America, the film industry quickly took off. In 1896, vitascope Hall, believed to be the first theater in the U.S. devoted to showing movies, opened in New Orleans in 1909, the New Times published its first film review (of D.W. Griffith’s “Pippa Passes”0, in 1911 the first Hollywood film studio opened in 1914,Charlie Chaplin made his big-screen debut. 

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Source:  “This Day in History: 12/28/1895 - First Commercial Movie.” 2012. The History Channel website. Nov 21 2012, 3:01 http://www.history.comhttp://www.history.com/this-day-in-history/12/28.

World Largest Rain Forest?

Amazon Rain Forest!

• The Amazon rain forest is the world’s largest tropical rain forest. It covers about 2 million square miles (5.2 million square kilometers). It is more than seven times as big as Texas

• The Amazon rain forest has more kinds of plants than any other place in the world. Tens of thousands of different kinds of trees and other plants grow there. The tallest trees are more than 165 feet (50 meters) high—or as tall as a 14-story building. Nuts, cocoa, rubber, and other useful products come from the plants.

• The Amazon rain forest also has more kinds of animals than any other place in the world. More than 1,300 kinds of birds make their home in the rain forest. The rivers have up to 3,000 kinds of fish. As many as 30 million different kinds of insects may live there.

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*Amazon rain forest."  World Book Discover. World Book, 2012. Web. 18 Nov. 2012

What is Acid Rain?

Obviously, it is not manmade chemical solution....

• Acid rain is rain, snow, sleet, or hail that contains acids. Acid rain harms lakes and rivers and kills fish and other water life.Scientists believe it damages forests, soil, statues, bridges, and buildings too. 

• When chemicals from automobiles and factories mix with the water, they form acids. Most of those chemicals come from burning coal, oil, and fuel. Acid rain has caused damage in parts of North America, Europe, and Asia. Since the 1950's, the damage is worse. Now it harms areas far away from cities.

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*"Acid rain."  World Book Discover. World Book, 2012. Web. 18 Nov. 2012