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Reload this Page does a propeller screw itself on air or is it just reaction
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Old 01-14-2012, 04:05 AM
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raaaid raaaid is offline
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also its the coanda effect

imagine you had a vacuum cleaner that expelled that air it absorbs laterally and you aim it up

vacuum would propel you up
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Old 01-14-2012, 05:10 AM
AndyJWest AndyJWest is offline
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Quote:
Originally Posted by raaaid View Post
vacuum would propel you up
Nope. The air pressure below would.
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Old 01-14-2012, 05:47 AM
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yeah so when you open a window does heat leave or enter cold

this is interesting:

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Old 01-14-2012, 07:13 AM
Puppet Puppet is offline
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Quote:
Cold
noun

the relative absence of heat.
When you open a window and the outdoor temperature is lower than inside, the warm inside air (less dense) will escape and rise into the atmosphere until it has cooled to equal the temperature of the surrounding air. The cold outside air (more dense) will enter the window to replace the escaping warm air and subside into the room.

Why is there confusion here? And why the hell are we discussing this in the first place?

Edit: I have just reread the OP's posts. I am not entirely sure exactly what point this thread is intended to prove. Several lines appear to be incomprehensible, however this could be due to the punctuation and grammar.

Edit 2: Did he say he is an engineer?!
Last edited by Puppet; 01-14-2012 at 07:21 AM.
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Old 01-14-2012, 10:26 AM
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bongodriver bongodriver is offline
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Quote:
Edit 2: Did he say he is an engineer?!
He says he is alot of things.....you are obviously new to the raaaid phenomenon.

We are privileged to enjoy raaaid threads because it was voted on to keep his ramblings, apparently he is some kind of genius.
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Old 01-14-2012, 10:47 AM
Sternjaeger II Sternjaeger II is offline
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yeah, this forum should be renamed "contrary mary"..

But I'm sure Raaaid will now show up and said "hey at least I post original stuff, not copy paste from other websites".

It's like arguing with a plant, although there's a fair chance the plant might actually agree at some point..
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Old 01-14-2012, 11:07 AM
winny winny is offline
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Only Raaaaaaaid would ask if an airscrew screws..

It doesn't, all aircraft are kept moving by magic, everyone knows that.

Oh, and aliens.

Seriously tho raaid, I thought you were doing a degree in something nautical?

And you're asking how a propeller works?!
Last edited by winny; 01-14-2012 at 06:24 PM.
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Old 01-14-2012, 03:55 PM
GregHouse GregHouse is offline
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Quote:
Originally Posted by raaaid View Post
yeah so when you open a window does heat leave or enter cold

this is interesting:
Hey Raaid, this video is really interesting I would like to find more videos like that,are you scientist or sth????????
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Old 01-14-2012, 04:11 PM
Sternjaeger II Sternjaeger II is offline
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Hey Raaid, this video is really interesting I would like to find more videos like that,are you scientist or sth????????
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Old 01-14-2012, 04:24 PM
GregHouse GregHouse is offline
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Originally Posted by Sternjaeger II View Post
i suppose its concidered geeky to find interesting in such matters
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