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Chemistry
Why does lemon prevent the browning of apples? When browning of apples is caused by a reaction with...
the answer
Apples (and other fruits and vegetables) have within their cells enzymes and...
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Physics
Why is the sky blue?
the answer
The sky appears blue due to a phenomenon called Rayleigh Scattering....
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I heard that if you set fire to methylated spirit, it will catch fire, but nothing around it will...
the answer
No it is not true. That would be a very dangerous thing to try. Methylated...
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Can a sintered ore magnet be re-magnetized in a different configuration of its poles? Does it need...
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Yes, the poles of a magnet can be changed by exposing the magnet to a very...
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