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/sci/ - Science & Math

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File: 15 KB, 903x586, proodle.png [View same] [iqdb] [saucenao] [google]
5521404 No.5521404 [Reply] [Original]

/sci/, a better portal thread:
You have a pole going .9c. The pole's length is obviously contracted due to relativistic effects. it enters a portal and comes out behind its original location, so that it can go infinitely (see pic). Slowly, you apply a resistant force, and the relativistic effects go away. The pole "stretches" to longer than the distance between the two portals. What happens

>> No.5521410

bump out of my own interest

>> No.5521412
File: 23 KB, 288x499, why.jpg [View same] [iqdb] [saucenao] [google]
5521412

>portal physics

>> No.5521421

>>5521404
length contraction is a function of the lack of simultaneity.
http://en.wikipedia.org/wiki/Ladder_paradox

>> No.5521454

>>5521421
I am much more confused.

>> No.5521479

>>5521404
What happens when a torus expands due to heat? It expands in a direction perpendicular to the axis on which it pushes against itself. Same thing here: the rod will push against itself, creating a straight torus, and its radius will increase.
>>5521412