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Light Speed

Old 17th July 2006 | 22:32
  #21 (permalink)  
 
Joined: Dec 2001
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From: England
So having delt with the speed of light... How about the speed of electricity? Actually what I mean is...How fast do the electrons flow down a wire when you switch a light on? The answer is surprisingly slow... less than about 0.1 inches per second.
cwatters is offline  
Old 18th July 2006 | 13:09
  #22 (permalink)  
 
Joined: Oct 2000
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From: On a cushion by the fire
Aye but...

...it really doesn't work like that.
Imagine a narrow tube stretched from London to New York. The bore diameter is the size of a dried pea. The tube is completely filled with dried peas (electrons). Then an extra dried pea (electron) is slowly shoved into the end at London. At the other end in New York, a dried pea immediately but slowly emerges. Movement is slow but action is immediate.
Dogs
DogsBolx is offline  
Old 18th July 2006 | 13:22
  #23 (permalink)  
 
Joined: Aug 2005
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From: Estonia
Originally Posted by DogsBolx
...it really doesn't work like that.
Imagine a narrow tube stretched from London to New York. The bore diameter is the size of a dried pea. The tube is completely filled with dried peas (electrons). Then an extra dried pea (electron) is slowly shoved into the end at London. At the other end in New York, a dried pea immediately but slowly emerges. Movement is slow but action is immediate.
Dogs
Likewise... what is the speed of bleed air? Or hydraulic fluid?

10 cm in a tick is something that limits the size of a computer + external devices... Many people have managed to incorporate several trips to geostationary orbit and back in their applications, through internet links.
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