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]
A Polish team found a dinosaur’s front leg fossils in 1965. But the researchers could not find its other parts. In 2006 and 2009, a Korean team discovered its other body parts. The team recently identified whose bones they were.
[280호]
Namibia, southern Africa, is very dry and hot, especially during summer. So the elephants there move to different areas for water. Some elephants have a mysterious ability to find water far from where they are. A group of scientists studied
[279호]
Designers from China made the Air Umbrella. The new umbrella does not have a canopy. But it can still protect you from rain. How does the umbrella block rain? The top of the umbrella has holes to take in and let out air. Push the power button. Then, emitted air shapes the invisible canopy. So the air curtain keeps you out of the rain.
[278호]
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