this post was submitted on 11 Feb 2025
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It can look dumb, but I always had this question as a kid, what physical principles would prevent this?

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[โ€“] Flyberius@hexbear.net 33 points 1 week ago (2 children)

Because the stick isn't infinitely rigid. If you push it at one end the other end doesn't immediately start moving. The time it takes, I think, is equal to the speed of sound inside that material. Ultimately the forces that bind atoms together and allow them to interact are limited by the speed of light.

I ran this by an engineer and they said the same thing

[โ€“] Evilsandwichman@hexbear.net 7 points 1 week ago (1 children)

Huh....so we may fail to achieve faster than light (FTL) travel but we could probably manage faster than stick (FTS) travel

[โ€“] Flyberius@hexbear.net 8 points 1 week ago

Easily. I imagine that most spacecraft are already traveling faster than the speed of stick. It's likely only a few thousand meters per second