Scientists have shown that polar bears have smelly feet. The bears leave behind a smell on their tracks. So the scent helps them give information to other bears.
[293호]
Researchers recently found four new snake fossils in the U.K., the U.S., and Portugal.
[h1502호]
Some researchers think that zebras may have stripes to keep their bodies cool. The researchers observed zebras in 16 areas in Africa. They discovered that zebras in hot zones
[292호]
A French company created electronic roller skates. They allow people to walk faster. The roller skates have motorized wheels. People wear them under their shoes. They are designed
[291호]
American scientists found that golden-winged warblers may be able to hear storms. The scientists attached devices to some of the birds to track their routes. They discovered that the
[290호]
Researchers invented the world’s thinnest light. It is as thin as a sheet of paper. The researchers made the light with a 3D printer. They mixed ink and a tiny LED. Then, they printed it out on a piece of paper.
[289호]
The world’s first bike escalator is in Norway. The invention has become a tourist attraction. Cyclists can easily go up a steep hill with it.
[288호]
A man invented a special mechanical pencil. He says that his invention can be good for the environment. He used mechanical pencils at work every day. He wanted to use them for a long time. However, most of his mechanical pencils easily broke. They were usually made from plastic. So he made a strong writing tool out of metal.
[287호]
Our planet has a huge amount of water. Some scientists believe that the water came from the earth’s collision with icy comets, or shooting stars, that fall from sky.
[286호]
A company wanted girls to be active. The company announced its plan to make a new type of doll. People welcomed the company’s idea. The company raised money from a website. This website helps people to start a new business.
[285호]
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