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Physics of a roller coaster

Butterflies in your stomach and adrenaline rushing through your veins, roller coasters are an extremely thrilling experience to the riders. While on them, have you ever thought about how they really work and why? Roller coasters actually operate similarly to catapults and in some cases they actually use catapult launches. These systems operate by very quickly building kinetic energy and exerting it to the train. An example of this system is called the linear-induction motor. This system uses

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as151701

Why the sky is blue

Commonly, kids will ask, "why is the sky blue?" and not knowing the real answer, parents will answer something like "well it's the reflection off of the oceans" or "that's just the way it is". Little do these kids know, they are actually inquiring about physics. In reality, beautiful blue skies are more then just a nice day or a pretty sight, it is actually only blue because that's the way the human eyes interpret it. When our eyes perceive colors, all they are actually doing is distinguishin

as151701

as151701

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