Whirlwind - what is a hose?
The tornado in Oklahoma earlier this week attracted the attention of the world by its devastating power. So what is a tornado? How is tornadoes formed?
Latest update
- The moment a mysterious fireball lit up the Chinese sky
- Ancient beauties were crazy about painting their lips red to seduce men: Who would have thought that this thing is extremely poisonous!
- A company in Mexico unveiled the world's heaviest marshmallow
- Under the 'death ground' of Earth, strange creatures reveal the life of Mars
- The man caught a giant oarfish that was 6m long and weighed 130kg
- The largest salmon on Earth has tusks like a humped pig
- Discovering an 1,800-year-old bronze portrait of Alexander the Great
- Colombia discovered giant turtle fossils dating back 57 million years ago