Cho Kyung-cheol* Observatory opened on Mt. Gwangdeok in Hwacheon, Gangwon Province, in 2014. It is the highest observatory in Korea. Many amateur observers climbed the mountain to
[290호]
Colds are common sicknesses in winter. The following tips may help you avoid cold: Stay clean.
[289호]
Kids are usually afraid of seeing a doctor. In Israel, a special hospital offers new experiences for young patients. The doctors wear clown costumes while they treat kids there. The doctors want young patients to have a pleasant experience. It is called the Dream Doctors project.
[288호]
When we are in the cold, the nerves of our bodies detect it and send signals to our brains. Then our brains order muscles to quickly tighten and loosen many times. We shiver, with our teeth
[287호]
Phillip Stoll was walking near his home. The nine-year-old boy found the tooth of a mastodon in Apr. this year. Nathan Gray, a ten-year-old boy, spotted a supernova, an exploding star in space, last year.
[286호]
Do you think that mammals lived with dinosaurs? Scientists from Stony Brook University found a mammal’s fossil in Madagascar. They named the new fossil Vintana sertichi. They think that it lived 66 million years ago.
[285호]
The one-hand method is a way to escape from a maze, when it is a simple maze. The walls in a simple maze connect with each other. Put one hand on a wall in the maze and keep walking. Then, you can find an exit from the maze.
[284호]
Lake Baikal is in Russia. It is the world’s oldest, biggest, and clearest lake. The surface of the lake freezes in winter. And the ice begins to crack every March. Then, people can see something amazing: the greenish-blue ice showing up through snow!
[283호]
There is an ancient city deep in the jungle. Recently, scientists found Mahendraparvata, a city in a Cambodian jungle. The city is 1,200 years old! People could not find the city, because of a huge
[282호]
Global Hand-washing Day (GHD) first started on Oct. 15, 2008. GHD is a campaign to motivate people to wash their hands with soap. The campaign has become more popular. More than 70 countries have participated in the campaign.
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