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]
A study said that dolphins call their friends by name. The friends respond to the calls. They talk just like humans do! A research team recorded some dolphins’ sounds for 79 hours. Then the team analyzed how the dolphins called and responded to one another.
[284호]
A research team recently made a special device. You can become a “Spider-Man” with the device on your hands and feet. You can climb up on glass walls by yourself! Geckos can cling to glass walls or ceilings. The team found that their feet work as glue. So they added sticky pads to the device.
[283호]
A man saw people using disposable cups, which they used once and threw away. He thought that they could use cups to wash and use again. He invented foldable, reusable cups.
[282호]
Korean researchers recently found out that some blue rock thrush birds migrate abroad in winter. Usually, blue rock thrush birds do not migrate to other areas and mainly inhabit near the coast. On Aug. 27,
[281호]
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