synergeo : Messages : 26829-26858 of 70137

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26829		Dick Fischbeck dick_fischbeck	Apr 1, 2006 12:37 pm
	... cause ... forces ... Because if an IVM cuboctahdron shaped ball cluster where to transmorm into a sphere, some or all of the ball would have to jitterbug...
26830		Dick Fischbeck dick_fischbeck	Apr 1, 2006 12:44 pm
	http://www.kennethsnelson.net/qtvr/octa.htm http://www.kennethsnelson.net/qtvr/tetra.htm...
26831		Adrian Rossiter adrianrossiter	Apr 1, 2006 3:09 pm
	Hi Alan ... Yahoo says I am not a member of the group GeoJourney. ... [The links below are symmetry references and don't necessarily show the described shape] ...
26832		tim stockton lumburgzero	Apr 1, 2006 3:23 pm
	Adrian Rossiter <adrian_r@...> wrote: Hi Alan ... Yahoo says I am not a member of the group GeoJourney. ... this above shape gives a feeling how...
26833		Jim Lehman lehman98660	Apr 1, 2006 4:28 pm
	Adrian, You might like to sign up for geojourney to have access to the photos for reference. There are the usual options to not have email or daily digests if...
26834		John Brawley voodoo1776	Apr 1, 2006 5:42 pm
	After trying to pack 100,000 (took a week, didn't work very well), and thus having my computer back, I played for a bit this AM and for no particular reason...
26835		Alan Michelson alanmich2005	Apr 1, 2006 6:03 pm
	Those may seem primitive, but it's amazing what you can do with home-made sticks!...
26836		Alan Michelson alanmich2005	Apr 1, 2006 6:07 pm
	... Usually, only the Message Archives may be public. You usually have to join in for the other features such as Files and Photos....
26837		John Brawley voodoo1776	Apr 1, 2006 6:18 pm
	Still playing.... 1161 in 5.70252 (max o'lap 1.88x10^-15) 1167 in 5.71024 (max o'lap 2.2x10^-11) That last is _ten more balls_ than are in the Waterman, and...
26838		John Brawley voodoo1776	Apr 1, 2006 7:16 pm
	Just finished messing with Steve's 1157-ball Waterman (I forget which W-number it is; the radius --minus the 0.5 we both exclude because we detect ballcenters...
26839		John Brawley voodoo1776	Apr 1, 2006 7:34 pm
	CORRECTION: 5.7335 is _my_ old radius. Steve's for that W-poly is 5.7445, so I _ain't_ done yet. Peace JB jb@... Web:...
26840		Dick Fischbeck dick_fischbeck	Apr 1, 2006 7:51 pm
	For 1155 balls, according to IVM packing: ((10 / 3) * (6.5^3)) + (5 * (6.5^2)) + ((11 / 3) * 6.5) + 1 = 1 151.5 F=6.5 425, 305, 205, 125, 65, 25, 5 Dick...
26841		John Brawley voodoo1776	Apr 1, 2006 8:23 pm
	Well, I was wrong: I can get 1187 balls into radius 5.7445 (the W radius for that Waterman). (It's actually 5.7433, but I can't (yet) get another ball in,...
26842		John Brawley voodoo1776	Apr 1, 2006 8:27 pm
	INteresting. I wonder if I'm getting 'optimal' for RJP? I just surprised myself by getting _1187_ balls into a hair less than the same radius that Steve's...
26843		kirby urner pdx4d	Apr 1, 2006 11:23 pm
	The cumulative packing formula is for the total number of balls in a cuboctahedron, not a Waterman. Both are CCP. And no, I don't think fractional...
26844		John Brawley voodoo1776	Apr 2, 2006 12:13 am
	Hi Kirby. I tend to agree with you. So does Steve. However, there's also apparently a 'stepwise' sequence of which packs better. The one I packed and beat...
26845		kirby urner pdx4d	Apr 2, 2006 1:01 am
	... What does RJP stand for again? Kirby...
26846		John Brawley voodoo1776	Apr 2, 2006 2:47 am
	Random Jammed Packing. (Pour the balls into a container --box-- ; shake it.) Pardon my word-cutesiness; I tend to neologize by smashing wordthings together,...
26847		Alan Michelson alanmich2005	Apr 2, 2006 3:50 am
	... Random Jammed Packing...
26848		John Brawley voodoo1776	Apr 2, 2006 5:05 am
	Correction: _64%_, not 54. ... From: "John Brawley" <jb@...> To: <synergeo@yahoogroups.com> Sent: Saturday, April 01, 2006 8:40 PM Subject:...
26849		Tim Tyler tt2333	Apr 2, 2006 10:58 am
	... Best - in what sense? I reckon the optimal packing density for spheres (as n->oo) is going to be the CCP figure - which seems to be 74.05%....
26850		Adrian Rossiter adrianrossiter	Apr 2, 2006 11:30 am
	Hi Kirby and All ... In a sphere contained Waterman pack the potential volume lost from partial CCP balls cut at the surface increases in a roughly square ...
26851		Tim Tyler tt2333	Apr 2, 2006 1:57 pm
	... CCP right out to the edge isn't going to be optimal, though. Instead you'll get the 3D version of: ...
26852		kirby urner pdx4d	Apr 2, 2006 4:03 pm
	... Another synergetics note: To get this density, multiply your (4/3)math.pi(r**3) by the 3rd power of the Synergetics Constant and ratio it to Six, the...
26853		kirby urner pdx4d	Apr 2, 2006 4:11 pm
	... Are you sure then? Because in the picture you showed me I saw I lot of breakup and I wondered if that space was trully recovered in the few extra balls...
26854		John Brawley voodoo1776	Apr 2, 2006 5:39 pm
	... From: "Tim Tyler" <tt2333@...> To: <synergeo@yahoogroups.com> Sent: Sunday, April 02, 2006 5:57 AM Subject: [synergeo] Sphere packing density ... ...
26855		John Brawley voodoo1776	Apr 2, 2006 5:40 pm
	For Tim, et.al.: Expanding on my : "...and at least one direct _physical_ experiment involving 500 1/2" acrylic balls, have shown)..." (Some of you may...
26856		John Brawley voodoo1776	Apr 2, 2006 7:19 pm
	(Pardon; I write much on a subject dear, hence am crossposting to S.) From: "Steve Waterman" <swaterman@...> JB, One other thing, I would...
26857		rybo6 os_jbug	Apr 2, 2006 8:56 pm
	http://www.livescience.com/forcesofnature/050928_quicksand.html ...."The researchers simulated a quicksand pit in the lab and placed an aluminum ball of...
26858		rybo6 os_jbug	Apr 2, 2006 9:04 pm
	http://web.mit.edu/8.712/www/lecture3/tsld016.htm ..."Below phase boundary the hadronic density is high any small increase in density makes a plasma !!! ...

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