Re: [FRIAM] Gravity as an emergent phenomenon

Wonderful! I love the water/sugar example. -- Russ On Tue, Jul 13, 2010 at 9:07 PM, Roger Critchlow wrote: > Working from the context, I'd guess: the tensor product between the > components dxa and dxbof the stress > energy tensor Tab, but I've never been too sure about > tensors. > > I was

Re: [FRIAM] Gravity as an emergent phenomenon

Working from the context, I'd guess: the tensor product between the components dxa and dxbof the stress energy tensor Tab, but I've never been too sure about tensors. I was lost in the introduction. The proposition of entropy causing action at a distance reminded me of a notorious demonstration.

Re: [FRIAM] How do you auto-create a network diagram?

steve, I don't know if this is relevant, but there was still, when I last looked, no web tool for building family timelines. Lot's of genealogy but no time line software. So, one would enter family events into a form and the software would plot those events in relation to those of other family

Re: [FRIAM] Gravity as an emergent phenomenon

So, Verlinde lost me in section 4. But I usually try to continue reading even if I don't understand (just like I continue talking about stuff I don't understand ;-). And equation 5.35 (attached) had a surprise for me. What is that ^ symbol between dx^a and dx^b? -- glen e. p. ropella, 971

Re: [FRIAM] Gravity as an emergent phenomenon

From Carl's post's post (backreaction): In this case however one finds that the "temperature" can be negative and that the "entropy" can decrease without having to do work. Whoa! Definitely relates to complexity babble! -- Owen ==

Re: [FRIAM] Gravity as an emergent phenomenon

Nick, I love it when you talk professor-ese to me. "No more than" = well, I dunno what. I found the article provocative, but if the best physicists don't quite understand what the guy is on about, I needn't feel bad for myself. Pamela "God keep me from ever completing anything. This whole bo

Re: [FRIAM] Gravity as an emergent phenomenon

Herr Prof. Thompson, Would you "reductionally posit that our personalities are emergent? Paul -Original Message- From: Robert J. Cordingley To: The Friday Morning Applied Complexity Coffee Group Sent: Tue, Jul 13, 2010 1:11 pm Subject: Re: [FRIAM] Gravity as an emergent phenomenon

Re: [FRIAM] Gravity as an emergent phenomenon

Sabine Hossenfelder's summations are fun and interesting and, alas more informative than the nyt article: http://backreaction.blogspot.com/2010/03/gravity-is-entropy-is-gravity-is.html http://backreaction.blogspot.com/2010/07/in-praise-of-black-holes.html Carl On 7/13/10 10:55 AM, glen e. p. ro

Re: [FRIAM] Gravity as an emergent phenomenon

Then for something really complicated (complex?) this article on microbiology/micobiomes made me think I'm just a host for all the millions of symbiotes? Literally your right hand might not know what your left hand is doing. http://www.nytimes.com/2010/07/13/science/13micro.html?ref=science Pe

Re: [FRIAM] Gravity as an emergent phenomenon

Roger Critchlow wrote circa 10-07-13 09:55 AM: And if you want to see if the argument confuses you as much as it confuses the physicists: http://arxiv.org/abs/1001.0785 So far (section 3.2), I'm getting that same tickle in my lizard brain that I get when I play numerologist. "Do you see? Wh

Re: [FRIAM] Gravity as an emergent phenomenon

Great catch, thanks. Time for a new book? :) -- Owen On Jul 13, 2010, at 10:39 AM, Pamela McCorduck wrote: > Great food for thought. Gravity might be no more than an emergent phenomenon: > > http://www.nytimes.com/2010/07/13/science/13gravity.html?_r=1&partner=rss&emc=rss > > "God keep

Re: [FRIAM] Gravity as an emergent phenomenon

I always find myself confused about how to think about entropy. The article says that gravity is an entropic force. I understand that to mean that it not reducible to lower level forces but to be reducible (if that term applies) to statistical thermodynamics. Just as there are a lot more ways that

Re: [FRIAM] Gravity as an emergent phenomenon

Pamela, I got all ready to be huffy about the article, but then found it really interesting. At risk of going all professorial on you, I want to examine your expression, "no more than a". The most important phenomena that we experience are all emergents. If you hit me with a rock, the hardnes

Re: [FRIAM] Gravity as an emergent phenomenon

Stephen G will be glad to know too that the physicist featured in the article thinks it might be all thermodynamics. (or should that be quantum thermodynamics?) Robert C On 7/13/10 10:39 AM, Pamela McCorduck wrote: Great food for thought. Gravity might be no more than an emergent phenomenon:

[FRIAM] UC takes scientific journals to task over fees

FYI http://www.latimes.com/business/la-fi-hiltzik-20100707,0,1097810.column -tom johnson FRIAM Applied Complexity Group listserv Meets Fridays 9a-11:30 at cafe at St. John's College lectures, archives, unsubscribe, maps at http://www.fr

Re: [FRIAM] Gravity as an emergent phenomenon

Pamela McCorduck wrote circa 10-07-13 09:39 AM: http://www.nytimes.com/2010/07/13/science/13gravity.html?_r=1&partner=rss&emc=rss “The end result was that everyone else didn’t understand it either, including people who initially thought that did make some sense to them,” he [Bousso] said in

Re: [FRIAM] Gravity as an emergent phenomenon

And if you want to see if the argument confuses you as much as it confuses the physicists: http://arxiv.org/abs/1001.0785 -- rec -- On Tue, Jul 13, 2010 at 10:39 AM, Pamela McCorduck wrote: > Great food for thought. Gravity might be no more than an emergent >

[FRIAM] Gravity as an emergent phenomenon

Great food for thought. Gravity might be no more than an emergent phenomenon: http://www.nytimes.com/2010/07/13/science/13gravity.html?_r=1&partner=rss&emc=rss "God keep me from ever completing anything. This whole book is but a draft--nay, but the draft of a draft. Oh, Time, Strength, Cash

[FRIAM] Fwd: Announcing Cluster Compute Instances for Amazon EC2

Cool! Clusters on Amazon. Owen I am an iPad, resistance is futile! Begin forwarded message: > From: Amazon Web Services > Date: July 13, 2010 7:35:52 AM MDT > To: "o...@backspaces.net" > Subject: Announcing Cluster Compute Instances for Amazon EC2 > > Dear Amazon EC2 Customer, >