Newton's Three Laws of Motion
The motion of an aircraft through the air can be explained and described by physical principals discovered over 300 years ago by Sir Isaac Newton. Newton worked in many areas of mathematics and physics. He developed the theories of gravitation in 1666, when he…
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Engineering
Non-Flammable Fuel?
When we're flying high above the Earth, few of us give much thought to aircraft safety. We're usually too busy…
Medicine
What Is Narcolepsy?
Narcolepsy is a sleep disorder than affects about 1 of every 2000 people worldwide. It usually starts in the…
Geology
Pointing North
The needle of a compass is a small magnet, one that is allowed to pivot in the horizontal plane. The needle…
Biology
How Did Dogs Evolve?
While the status of the dog as humankind's best and oldest friend remains unchallenged, debate rages about…