COOOoooOOOooolll!

Except the outside bit of the centrifuge would experience time dilation relative to the central bit. So what happens when the arm swings right round, catches up to itself and smacks your joy riders up the crack??

These kind of things always do my head in, but I think the person in the capsule might feel like they've been in there for 5 minutes, but it might be 5 hours to the rest of us.

It would suck waiting for that ride.

maxm said...
Except the outside bit of the centrifuge would experience time dilation relative to the central bit. So what happens when the arm swings right round, catches up to itself and smacks your joy riders up the crack??

So do the tyres on your car/bike spin faster than the hubs?

But, the only way you would know that time had stood still would be to compare clocks when you got out.

So - why not just get a cheap old fairground ride, tell everybody it spins at the speed of light in zero gravity, tell people they can't wear watches due to risk of electric shock or something - and then equip it with a really cheap and bad clock that runs really slowly.

Nobody would know the difference - except you, and you would turn a tidy profit on running costs compared to the real thing.

speed of light is relative to the point from which it is viewed...

the best I've heard is from www.eaglesdisobey.net (or maybe org)

roswell crash was beings from the future, human timeline future, 47,000 in the future, but they had an infiltator amognst the crew from 55,000 in the future, whose mission it was was to usurp the 47,000 year humans (who had ideals of setting humanity on a predetermined catastrophic time adjudicate) and set humanity on an altinate timelime that would extinguish the 47,000 year future humans and save us from the fate that beset the 55,000 year human....

apparently 55,000 human remained alive in present day captivity until sometime in the mid eighties, until he was able be sent back through an inter timemisional wormhole that would replicate his adjusted timeline actuality...

prove me wrong today tonighters..... prove me wrong

nebbian said...

Only problem with this is that your tourists would end up as wet lumpy puddles on the inside surface of the centrifuge.

At close to the speed of light that's a heck of a lot of G's!

Have you got an equation I can use? You've exposed a deficient area in my knowledge... I assumed the inward centripetal force required a relative static point... but if the whole thing is moving would you still feel the force?

Skid said...

or, you could also use this....

www.calctool.org/CALC/phys/newtonian/centrifugal

Hey that tool is awesome! I was looking for something like that.



So with a linear speed of 300,000 km/s, and a 20 metre radius you get a G-force of 4.59 e+14 G's. So 459,000,000,000,000 G's.

With a water-filled G-suit, fighter pilots can withstand 6 G's without blacking out (but only just).

If you increase the radius then the G's decrease, but to decrease the G's to 6 you would need a centrifuge 0.3 light years in diameter. That's pretty big

Thanks .

I guess this would apply to any type of acceleration.
What difference does it make if an object is moving in a circular pattern vs a linear pattern? None

I know when the space shuttles fire their manoeuvring thrusters the occupants have to hold on...

So 2 months acceleration + 2 months deceleration @ 6G? I don't think I could sell that idea... Ladies and gentlemen you will weigh 6 x your current weight for 4 months!

Holly **** I would weigh 540kg! My poor heart.

Most people couldn't handle 3g's for 10 minutes.
My sailplane was designed to take 18g's max... must have been without occupants.

Inertial dampening... OK since the proposed design is just a simple centrifuge we could place the occupants in a sphere inside the centrifuge and have it fall through cascading magnetic fields; acceleration would be serious curtailed but it should provide a smother ride.

BTW: I was planing on acceleration the centrifuge with a FEEP ion drive... current max speed is around 130000 kmh, but then we could deploy a solar sail like a windmill... damn there goes my geostationary orbit.

I need to look in to this a bit more.

hey, I'm tellin' you - old fairground ride and a broken clock, nobody will know the difference.

If anyone does complain, just tell them it wasn't you that didi it, it was old you, who is now a completely different person.