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Physic

A blog by esmith in General

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If this blog were a graph it's be jerk vs time graph

Entries in this blog

More Issues with Star Wars

It's no secret that George Lucas doesn't give a hoot about physics, but just for the heck of it here is another issue I have with the film series. The films frequently feature intense laser fights both in outer space and on land, but what doesn't make sense is why the lasers are visible. Given that lasers would have to be highly energized beams of light to do so much damage, they should not be visible unless refracted. Those of you who remember Mr. Powlin's green laser pointer will no doubt reme
esmith

esmith

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Why do balls bounce?

While I was throwing bricks at the neighbor's cat the other day, a strange thought occurred to me: why is it that a rubber ball will bounce when it hits the ground bu these bricks do not. To answer that question I turned to my trusty frenemy physics. The reason a rubber ball bounces is because it is made out of an elastic material. This means that, like an elastic band, it can be bent and stretched but still return to its normal shape. When a ball hits the ground (or the neighbor's cat), the sur
esmith

esmith

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Wait, the Earth IS flat?

After writing my last blog post, I came across the following website: https://www.tfes.org/ It is the homepage for an organization called the Flat Earth Society, which, as you might have guessed, believes the Earth is actually flat. This would seem to imply that all scientific evidence pointing to a round Earth is a product of the government and the globe manufacturing lobby. But while their idea is obviously wrong, the science behind it is not. In my previous post, I wrote about the effect a di
esmith

esmith

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What if the Earth was flat?

A common misconception is that Christopher Columbus discovered that the Earth was round, and that, before then, people all thought it was flat. Actually, a round Earth has been widely acknowledged and accepted in the scientific community since the days of Ancient Greece. But what if the Earth actually was flat? For starters, we would have to throw out most of the laws of physics as we know them, as a disk as massive as the Earth would collapse into a ball under its own gravity. But if somehow th
esmith

esmith

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