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sleepsleep



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sleepsleep
i saw this in reddit, and i think, there are certainly scientiests on fasm board could help me digest this question.

1,000,000 cogs perfectly aligned, if i turn the first one, would all turn exactly at the same time?

so, there are only 1 answer, yes or no.

or if i acquire the strength to move 1,000,000 cogs, then i able to turn all at the same time? and would this be faster than light?
Post 04 May 2009, 11:49
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revolution
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revolution
No. Of course not. They are mechanical and will deform under the stress of turning and pushing the others. The last cog may not even turn until the first cog has gone through a few rotations.
Post 04 May 2009, 11:55
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bitRAKE



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bitRAKE
Faster light (Casimir vacuum and quantum tunnelling)
Günter Nimtz wrote:
For the time being, this is the only violation of special relativity that I know of.

Despite the established conclusion that relativity precludes FTL travel, some have proposed ways to justify FTL behaviour:

  • Ignore special relativity
  • Faster light (Casimir vacuum and quantum tunnelling)
  • Give up causality
  • Give up (absolute) relativity
  • Non-physical realms
  • Space-time distortion
  • Quantized space and time
The last one is my favorite - I don't believe in continuous anything.
Post 04 May 2009, 19:52
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Borsuc



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Borsuc
What the hell are "cogs"?

bitRAKE wrote:
The last one is my favorite - I don't believe in continuous anything.
Too bad the Universe is analog and not digital Wink

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Post 05 May 2009, 00:54
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bitRAKE



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bitRAKE
Borsuc wrote:
Too bad the Universe is analog and not digital Wink
Your reply alone is enough proof to the contrary:
You expressed a duality and selected one as truth! Laughing

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Post 05 May 2009, 01:06
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Borsuc



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Borsuc
sorry, my english is not so good, I don't understand.

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Post 05 May 2009, 01:19
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bitRAKE



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The actual continuity of the universe matters not if we (our instruments) are only able to experience it in a discrete manner. My position is that the universe is actually discrete in nature.
Post 05 May 2009, 01:30
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Borsuc



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Borsuc
Yeah well the analog devices are supposed to be continuous, though one never knows since nothing is infinitely precise.

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Post 05 May 2009, 02:27
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Madis731



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Madis731
I also read the reddit, but they're all heading in the wrong direction. Train carts, long rods, billions of cogs etc.

In all cases you can see simultaneous movement in ideal cases, but it doesn't mean that you've reached or went beyond the speed of light. Imagine two cars traveling 6000km apart. Their movement can be synchronized, but it is nothing to do with the speed of light.

What I imagine remotely close to exceeding speed of light is Madis sitting on a platform in space heading in a direction nobody knows at 299792.4579km/s (which is .0001km/s short of c) and when Madis decides to move in the same direction as the platform ...
I don't know
A) he meets Matrix guys http://xkcd.com/566/
B) he meets new matrix transforms http://xkcd.com/184/
C) he meets a brick wall
D) he explodes Razz

PS. I just love this one: http://www.cartoonstock.com/newscartoons/cartoonists/dbr/lowres/dbrn289l.jpg
Post 05 May 2009, 07:39
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revolution
When all else fails, read the source


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revolution
Einstein can answer your question. Relativity is the key here. Two people approaching each other at speed 0.9999c can never attain a relative approach speed above c because of time dilation effects. You can't simply add the speeds, it doesn't work that way.
Post 05 May 2009, 10:53
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bitRAKE



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bitRAKE
A similar question: if buckballs (or another suitable molecule) were blasted through a nanotube in such a manner that one enters and one leaves; couldn't the speed of light be surpassed? ...or would the interaction between elements slow communication?
Post 05 May 2009, 15:16
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revolution
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revolution
There is no incompressible substance. buckballs (whatever they are) are no exception. So the transmission of the pushing pulse cannot be instantaneous, it will take time to propagate, and that time will always work out to less than c.


Last edited by revolution on 05 May 2009, 16:29; edited 1 time in total
Post 05 May 2009, 16:01
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bitRAKE



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bitRAKE
Of course, that is the current understanding, there is no way to help the transmission to do better. Or is there?
Post 05 May 2009, 16:24
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sleepsleep



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sleepsleep
would something like this exceed speed of light?
if we to align 1,000,000 magnets inside a tube like picture?
then if i push the first one, would the last one fire out like bullet?


Description:
Filesize: 1.13 KB
Viewed: 6588 Time(s)

magnet.PNG


Post 05 May 2009, 17:08
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revolution
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revolution
sleepsleep wrote:
would something like this exceed speed of light?
No.
sleepsleep wrote:
if we to align 1,000,000 magnets inside a tube like picture?
then if i push the first one, would the last one fire out like bullet?
No. If it did then you have made a perpetual motion machine. You are trying to break "conservation of energy", a well established law of physics.
Post 05 May 2009, 17:15
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sleepsleep



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sleepsleep
Quote:

No. If it did then you have made a perpetual motion machine. You are trying to break "conservation of energy", a well established law of physics.


why i got a feeling that you sounds like religion??
hehe, joke.

what if,
person A lives 1 light years from person B.
if person A somehow agree with person B to say something on a specific time, wouldn't it faster than light?

maybe we should build a gigantic brain, travel through thoughts.
(or maybe there is one already outside there, but we haven't figure out how to use it).
Post 05 May 2009, 18:38
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revolution
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revolution
sleepsleep wrote:
what if,
person A lives 1 light years from person B.
if person A somehow agree with person B to say something on a specific time, wouldn't it faster than light?
Erm, what? Let's do the experiment now, at exactly 12pm you say 'hi'. Okay, now, how is that FTL?
sleepsleep wrote:
maybe we should build a gigantic brain, travel through thoughts.
(or maybe there is one already outside there, but we haven't figure out how to use it).
Huh? Do I detect a little of the fermented fruits in that statement? :p
Post 05 May 2009, 19:02
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Coddy41



Joined: 18 Jan 2009
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Coddy41
The cogs would have to make so much rotation to turn the one... lets try to simulate this

start -->> OOOOOOOOOOOOOOOOOOOOO <<-- end
Now, from what I have seen I have had to turn the 1 about 3° to get the one to move 2° so, 2 devide 360°
=180° now, 360 devide 3= 120° that is when you turn the the first 180° the second one will only turn 120°
and so on down the line... I MAY have messed up but.....
Post 05 May 2009, 19:35
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revolution
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revolution
What here can say Čerenkov radiation.
Post 05 May 2009, 19:39
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Coddy41



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Coddy41
I got lost there, what does that have to do with cogs? I did like this picture though.
Image

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Post 05 May 2009, 20:14
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