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Air Resistance and Terminal Velocity

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Physics is the science of the very small and the very large. Learn about Isaac Newton, who gave us the laws of motion and optics, and Albert Einstein, who explained the relativity of all things, as well as catch up on all the latest news about Physics, on

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Question: If the metric and S.I. units systems are now almost universally accepted as standards, why are TV and computer screens usually measured in inches?

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Quote of the day...

The father of the father of Sean had his name abbreviated to 'Nonno', which is Italian for 'grandfather', somewhere back in a historical era called The Mists of Time. Inspired by his handy Jurassic timeline foldout, Sean guessed that 'Mists', being plural, must be an era divided into 'periods', which should, by convention, be called proto Mist, meso Mist and paleo Mist of Time.

A Term a Day:


[ Environment : Biology]

The part of the atmosphere above the troposphere and beneath the mesosphere: 12 to 50 km altitude.

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