
#1
Jan1313, 08:53 PM

P: 52

Hello dbmorpher here,
I was looking at some articles on entropy and wondered, could this be used to calculate time? Entropy is known as the arrow of time, figurative I know but could actually be used to measure. If there was a device that calculated the entropy in a set system couldn't it automatically calculate it and give a numerical value? This would need a set system for all clocks but would render any other non atomic clocks obsolete because it is based on measurements and calculations instead of gears and circuitry. I would like to know if what I said in that last sentence could happen and if I could make one myself. I found this http://www.eoht.info/page/Entropy+clock But I do not understand it very well. 



#2
Jan1313, 09:16 PM

Mentor
P: 28,804

This is VERY puzzling. What system do you wish to measure the entropy of that is SO reliable as to be used as a clock? And how would this be more accurate than current atomic/Cs clock?
BTW, the naive link between entropy and the arrow of time is a QUALITATIVE relationship, not a QUANTITATIVE one. Nothing here says that entropy can provide an accurate MEASURE of time. Zz. 



#3
Jan1313, 09:28 PM

Mentor
P: 22,001

Right. I could use a pot of water on my stove as a clock, but it would be cumbersome and not all that accurate.




#4
Jan1513, 03:15 PM

P: 52

Theoretical Entropy Clock
Well from what I have learned entropy is measured not observed, therefore a small calculator sized computer could be fitted to a clock and measure the entropy in the system, the only way for the clock to be inaccurate is if the laws of thermodynamics broke.
Refute me if I am wrong. 



#5
Jan1513, 03:28 PM

P: 852




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