Why Does an Astronaut Need a Spacesuit?
Why Does an Astronaut Need a Spacesuit? A spacesuit enables an astronaut to survive by providing him artificially with conditions like those he is used to on Earth....
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What Is Antifreeze?
Antifreeze is a freeze preventative used in internal combustion engines. The purpose of antifreeze is to prevent a rigid enclosure from undergoing catastrophic...
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Why Do Water Pipes Sometimes Burst in Winter?
Why Do Water Pipes Sometimes Burst in Winter? Cold water pipes may burst in winter when the outside temperature falls below 0°C (32 °F) and the water turns to ice. The...
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Why Does Frozen Food Keep Well?
Why Does Frozen Food Keep Well? Frozen food keeps for a long time because the freezing of the water inside the food forces the bacteria, which cause it to decompose,...
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How Is Milk Pasteurized?
How Is Milk Pasteurized? Milk is pasteurized by heating it to a temperature of about 62°Celsius (about 143°Fahrenheit) and then maintaining that temperature for about...
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