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(Phys Org2)   Evolution doesn't violate the Second Law, but nanoparticles can   (phys.org) divider line 20
    More: Interesting, second law of thermodynamics, evolution, Nature Nanotechnology, Cell Biology, nanoparticles, thermodynamics, University of Vienna, conversion disorders  
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1996 clicks; posted to Geek » on 01 Apr 2014 at 10:25 AM (33 weeks ago)   |  Favorite    |   share:  Share on Twitter share via Email Share on Facebook   more»



20 Comments   (+0 »)
   
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2014-04-01 09:09:10 AM  
Well, I guess that answers the last question.
 
2014-04-01 10:28:45 AM  
"What'ja do at work today, hon?"

"Not much, just used a nanoparticle and laser trap to temporarily violate the physical laws of the universe.  You?"

"I had coffee with Janet.  You won't believe this, her sister-in-law, the one you met at the cookout last summer, you know, she wanted to get a new car.....(blah blah blah)"
 
2014-04-01 10:29:19 AM  
Well, we don't live in a closed system.  So anything that decreases entropy on Earth wouldn't violate the law.
 
2014-04-01 10:33:48 AM  
"A robot must obey the orders given to it by human beings, except where such orders would conflict with the First Law."

I'm really not seeing the connection here, guys...
 
2014-04-01 10:43:26 AM  
www.amk.to
 
2014-04-01 10:54:07 AM  
Uh. Laser is made of light, light is made of photons, photons impart energy into the equation... so 2nd law isn't broken.

Who wrote this crap?
 
2014-04-01 10:57:09 AM  
Second law of thermodynamics, or second law of robotics? It makes a difference.
 
2014-04-01 11:03:07 AM  
Or, y'know, the entropic component of energy isn't dominating in this situation, especially since you're talking about a limited-time (i.e. kinetic) effect:

upload.wikimedia.org

Not like kinetic phenomena are traditionally separated from thermodynamic for exactly this reason or anything, must be the "rewrite all the physics books" thing.
 
2014-04-01 11:13:56 AM  
Ok, *now* can I have a lightsaber?
 
2014-04-01 11:29:58 AM  

PanicMan: Second law of thermodynamics, or second law of robotics? It makes a difference.


Second law of fight club?
 
2014-04-01 11:40:04 AM  

SordidEuphemism: Uh. Laser is made of light, light is made of photons, photons impart energy into the equation... so 2nd law isn't broken.

Who wrote this crap?


Also I had thought that the 2nd law was statistical, not fundamental. It is very, very unlikely that all the cold air and all the warm air would move to separate sides of the room, but the probability is effectively zero because of the sheer number of particles involved. If I have only 4 particles, the odds are just fine that they might separate into warm on the left / cold on the right. A single nanoparticle - how does that violate or conserve the 2nd law of thermodynamics?
 
2014-04-01 11:51:32 AM  

Tricky Chicken: PanicMan: Second law of thermodynamics, or second law of robotics? It makes a difference.

Second law of fight club?


Sshh!
 
2014-04-01 11:53:15 AM  
So they're saying they caused the entropy of the universe to decrease? How about we make huge factories where this is going on 24/7? Eventually we can turn back the hands of time!
 
2014-04-01 11:54:24 AM  

draypresct: SordidEuphemism: Uh. Laser is made of light, light is made of photons, photons impart energy into the equation... so 2nd law isn't broken.

Who wrote this crap?

Also I had thought that the 2nd law was statistical, not fundamental. It is very, very unlikely that all the cold air and all the warm air would move to separate sides of the room, but the probability is effectively zero because of the sheer number of particles involved. If I have only 4 particles, the odds are just fine that they might separate into warm on the left / cold on the right. A single nanoparticle - how does that violate or conserve the 2nd law of thermodynamics?


There have been about 1,000,000 formulations of the 2nd law over the years, give the poor guy a break
 
2014-04-01 01:14:25 PM  
THERE IS AS YET INSUFFICIENT DATA FOR A MEANINGFUL ANSWER
 
2014-04-01 02:08:26 PM  

Flt209er: THERE IS AS YET INSUFFICIENT DATA FOR A MEANINGFUL ANSWER


Damn you, I wanted to make that joke.

/Golf clap
 
2014-04-01 02:26:44 PM  
This just proves that Noah's Ark is real and humans did not evolve from oysters.
 
2014-04-01 03:56:45 PM  

PanicMan: Second law of thermodynamics, or second law of robotics? It makes a difference.


Especially since the "second law of robotics" is meaningless, since it is entirely fictional.
 
2014-04-01 04:24:38 PM  

ArcadianRefugee: PanicMan: Second law of thermodynamics, or second law of robotics? It makes a difference.

Especially since the "second law of robotics" is meaningless, since it is entirely fictional.


Fictional, but still very useful as a thought experiment tool to explore the human condition and implications of creating and controlling AI. Not meaningless at all.
 
2014-04-01 08:18:38 PM  

Flt209er: THERE IS AS YET INSUFFICIENT DATA FOR A MEANINGFUL ANSWER


Bravo. I love that short story. Worth a read on the Googles, folks.
 
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