By Harvard pianist and mathematician, a very funny Tom Lehrer.
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The Wright brothers invented the airplane after learning from the mistakes of people in the past. They created the fundamentals of the kind of plane we use today. Let’s see what makes up toda...
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Hot Air Balloons
Modern hot air ballons, with an onboard heat source, were pioneered by Ed Yost, beginning in the 1950s; his work resulted in his first successful flight, on October 22, 1960. ...
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Memory Processes
Memory: the capacity for storing and retrieving information.Three processes are involved in memory:encoding storageretrieval.These 3 processes help to determine whether you ...
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WHY do we sleep?People conserve energy by sleeping periodically.Sleep has a protective function because it keeps people tucked away at night, safe from pre...
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