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EntertainmentThe effect creates a swirling shot in football
The Magnus effect creates a speed and pressure difference between the air currents on either side of the swirling ball, making the ball curve.What's special about the 2014 World Cup ball?
The Ball of the World Cup 2014 is named Brazuca, produced by the famous sports firm Adidas.
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Xinjiang - The Unincorporated Area in China
How many days on Earth is one day on the Moon?
Hubble telescope captures image of 'bridge' connecting two galaxies
Why is interstellar travel impossible today?
When cattle in a herd are attacked, why don't the others help?
In ancient times, there was no market in the palace, so where did the concubines spend their monthly money?
Ancient Diaries Reveal the Construction of the Great Pyramid of Giza
Discovery of mysterious dwarf planet beyond Neptune stuns astronomers
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