A fan will spin in a vacuum

fan in vacuum?

aNtraXx

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Edited by aNtraXx on July 1st, 2002, 2:50 pm

TOM

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it spins (probably faster than before .... since he has no resistance) and you feel NOTHING

whatever .. he doesn't move anything

you don't hear anything because it is in a vacuum yes rel. quiet is: P

his leaves move, and otherwise nuts ... except for a few atoms .... you can't create a 100% vacuum ....


how do you come up with it?

Simml

asdf
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if nothing is there, what does the fan want to mess around with

Guest

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you can't hear anything! If there is no air, how should the sound waves be transmitted? somehow logical

JonnyB

Bloody new blood
Registered: Mar 2001
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Posts: 656
Do you want to become a philosopher?

So:
into a vacuum-filled room
That's a bit very wrong, but we don't want to be petty, you know what you mean. Just for information: You cannot fill a room with a vacuum, you can only remove as much as possible from a room and thus generate the highest possible vacuum.
It would be a perfect vacuum if nothing at all there is more in the room (i.e. no atoms or molecules).

The fan would of course rotate, even quite well, because it no longer has to overcome air resistance and also does not have to do any work (~ move air).
You can't feel any wind, of course, because the fan doesn't move any air particles and thus nothing can fly towards your hand. (We disregard the fact that you might have certain difficulties with your hand in a vacuum, it's just pure theory).
He doesn't have to move anything, if nothing is there, [B] he can [B] move nothing.
But it can only be really quiet if no vibrations are transmitted via the bearing. You have to fix your fan somewhere, vacuum! = Weightlessness

IMHO the thread in the Lykeion would be better off.

Murph

Nerd
Registered: Dec 2001
Location: Vienna
Posts: 9236
euda PLEASE, g0t physics?

If you put your hand in front of a fan that is in a vacuum (how you do it is a different matter) you will not feel a lot that there is nothing to move

A fan doesn't make air, it moves it. Where there is nothing, nothing is moved.

Furthermore:
You can't hear anything in a vacuum because the transmission medium, in our case air, is missing

master blue

Mr. Anderson
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it will turn easier -> turn faster -> no resistance
I'm sure you won't hear anything. so not ala starwars / trek when you hear them fighting in space. weakfug!
it might even overheat, some fans get very hot and no heat can be transferred without air.

TOM

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SCWACHFUG

Vacuum! = Weightlessness

to sh ***

vacuum is a vacuum ..... perfect vacuum is NOTHING ..... and nevertheless there will be a force next to / behind / near the vacuum = mass and this mass removes weightlessness ....

vacuum has nothing to do with weightlessness ...

if space were filled with air then we would still be weightless because we are too far from a heavenly body ...

BTW. everyone writes (almost) the same as I did in the first post LOL
Edited by TOM on July 1st, 2002, 2:53 pm

HaBa

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Dr. Spark stone
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TOM,! = Means "not equal"

TOM

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/ = means unequal .....

aNtraXx

trailer park king
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that he can't get any air in a vacuum is already clear to me but the vacuum also consists of something (atoms) because it can't create an absolutely vacuum

TOM

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yes then he robs a few atoms that meander but if nothing is, he can not promote anything

aNtraXx

trailer park king
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nope! because the callsign is used in the C character set as a negation. that means! = == not the same

TOM

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K ... I didn't know ..... I always have / =

Murph

Nerd
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/ = means unequal .....

net really. I guess you've never coded anything have you?

edit:
uuuuuuund scho won again