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Meters are stupidly based on the size of the Earth (literally, given some of the ways the meter was originally defined). Give us the reactor dimensions in attoparsecs!

You should read this: http://en.wikipedia.org/wiki/Metre

"Since 1983, it is defined as the length of the path travelled by light in vacuum in 1⁄299,792,458 of a second"

Yes, that is technically the definition now, but under that logic, since a foot is precisely 0.3048 meters, you can just as easily say a foot is the length of the path travelled by light in 1/983571056 of a second. The meter was clearly originally defined by earth, and the precise definition only clarified later.

The meter was originally defined in terms of the earth, and the foot was originally defined in terms of peoples feet.

No matter how you slice it, feet are just dumb.

The sad part is that some people are STILL trying to argue that...

Because units derived from Earth's orbit are so much less arbitrary than units derived from Earth's circumference...

Any good physicist will be able to give you the dimensions in decillions of Plank lengths.

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