Measure centrifugal forces in space?
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From: JT on 26 Jul 2010 16:46 1. What kind of instrument is used to measure centrifugal forces in space, what do they use here on earth? 2. I suggested the instrument/apparatus below to measure, centrifugal force in space would it work? I would vaccum a doublesided disc with a sideway plugged nozzle that requires pressure fill it to half with water wrap a bigger vaccumed disc around it. Once you spinn up the double disc and unplug nozzle, you could calculate the force by the water pressure from the nozzle. But there is probably easier way to measure the density created in the water. Do science really say that the pressure will be the same if you spinn it up in deepspace or at earth and unplug the nozzle, i find it puzzling. Especially noone have given any account for what kind of force that creates this rotationaly inertia and hold things from spinning in deepspace. 3. Propose your own designed instrument to measure centrifugal force. Should work as well in space as on earth. JT
From: Sam Wormley on 26 Jul 2010 16:50 On 7/26/10 3:46 PM, JT wrote: > 1. What kind of instrument is used to measure centrifugal forces in > space, what do they use here on earth? What's wrong with a spring scale?
From: JT on 26 Jul 2010 17:00 On 26 Juli, 22:50, Sam Wormley <sworml...(a)gmail.com> wrote: > On 7/26/10 3:46 PM, JT wrote: > > > 1. What kind of instrument is used to measure centrifugal forces in > > space, what do they use here on earth? > > What's wrong with a spring scale? I assume you mean to attach one end to some nass and then rotate the mass, or how do you intend to rotate the spring? I guess that is a working solution, once you accelerated the spring to maxspeed i guess it will stretch out, but what will happen in deepspace once the acceleration face is over will it still apply same amount of force to the string? JT
From: Sam Wormley on 26 Jul 2010 17:23 On 7/26/10 4:00 PM, JT wrote: > On 26 Juli, 22:50, Sam Wormley<sworml...(a)gmail.com> wrote: >> On 7/26/10 3:46 PM, JT wrote: >> >>> 1. What kind of instrument is used to measure centrifugal forces in >>> space, what do they use here on earth? >> >> What's wrong with a spring scale? > > I assume you mean to attach one end to some nass and then rotate the > mass, or how do you intend to rotate the spring? Centrifugal force implies rotation-- hang a spring scale and known mass.
From: JT on 26 Jul 2010 18:27
On 26 Juli, 23:23, Sam Wormley <sworml...(a)gmail.com> wrote: > On 7/26/10 4:00 PM, JT wrote: > > > On 26 Juli, 22:50, Sam Wormley<sworml...(a)gmail.com> wrote: > >> On 7/26/10 3:46 PM, JT wrote: > > >>> 1. What kind of instrument is used to measure centrifugal forces in > >>> space, what do they use here on earth? > > >> What's wrong with a spring scale? > > > I assume you mean to attach one end to some nass and then rotate the > > mass, or how do you intend to rotate the spring? > > Centrifugal force implies rotation-- hang a spring scale and known > mass. I hope you intend to have a central heavier mass rotated in the middle otherwise your little spring will just flap around the weight. But back to the question with my proposed setup, will the waterpressure be the same on earth as in deepspace. JT |