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IWETHEY Home / IWETHEY Board / Science Forum / Re: Thanks for the clarification
Post #46,354
by neelk
7/22/02 9:23:17 AM
Reply
New Re: Thanks for the clarification
The reason that billions wasn't a red herring was because an individual bead in the water was getting a useful work from the thermal kicks the surrounding water imparted to it. This means that the relevant number is the number of water molecules striking the bead at each moment.

I'm not sure how they did the measurements, because I was only able to find the abstract, and a short note in the AIP Bulletin. I probably wouldn't be able to understand them anyway, since my physics degree is now 5 years old. :)

[link|http://link.aps.org/abstract/PRL/v89/e050601| [link|http://link.aps.org/abstract/PRL/v89/e050601|http://link.aps.org.../v89/e050601] ]

[link|http://www.aip.org/enews/physnews/2002/split/598-1.html| [link|http://www.aip.org/enews/physnews/2002/split/598-1.html|http://www.aip.org/...t/598-1.html]]
Post #46,430
by ben_tilly
7/22/02 7:59:48 PM
Reply
New Hey, at least you *have* a physics degree
Me, I am an interested amateur who skipped the minor when I realized that if I didn't get the minor then I could avoid taking thermodynamics from one of the worst teachers I have had the displeasure of meeting.

As for the description, that does sound more suprising than what I assumed.

Cheers,
Ben
"... I couldn't see how anyone could be educated by this self-propagating system in which people pass exams, teach others to pass exams, but nobody knows anything."
--Richard Feynman
     Thermodynamics doesn't scale downward - (marlowe) - (8) - July 18, 2002, 03:10:45 PM EDT
         If I find lots of tiny monkeys with tiny typewriters..... - (tablizer) - July 19, 2002, 01:19:17 AM EDT
         This is no surprise to me - (ben_tilly) - (6) - July 19, 2002, 06:31:02 AM EDT
             What makes it surprising... - (neelk) - (5) - July 21, 2002, 02:35:15 PM EDT
                 Thanks for the clarification - (ben_tilly) - (3) - July 21, 2002, 04:23:31 PM EDT
                     Heh.. how do we 'measure' the entropy of the Cosmos (?) - (Ashton) - July 21, 2002, 07:49:44 PM EDT
                     Re: Thanks for the clarification - (neelk) - (1) - July 22, 2002, 09:23:17 AM EDT
                         Hey, at least you *have* a physics degree - (ben_tilly) - July 22, 2002, 07:59:48 PM EDT
                 What Happens... - (deSitter) - July 25, 2002, 10:13:00 AM EDT

I'm away from zIWT for a day or two and look what happens! That'll learn me.
37 ms