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Messages 1526 - 1556 of 1613   Oldest  |  < Older  |  Newer >  |  Newest
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1526
Hi John ... I followed up my original post with some reasoning for why this would be the case http://tech.groups.yahoo.com/group/Polytopia/message/1274 Adrian....
Adrian Rossiter
adrianrossiter
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Jun 4, 2007
9:15 am
1527
Adrian Rossiter has the right idea: http://www.freewebtown.com/adrian/misc/anim_hc01.gif <http://www.freewebtown.com/adrian/misc/anim_hc01.gif> ... ...
Alan Michelson
a.michelson
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Jun 19, 2007
7:46 pm
1528
Math is turning bad <http://www.batkhela.com/jokes/show/math_is_turning_bad/352/>...
Alan Michelson
a.michelson
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Jun 23, 2007
12:47 am
1529
Weapons of Math Instruction <http://www.pen.k12.va.us/Div/Winchester/jhhs/math/humor/mathweap.html>...
Alan Michelson
a.michelson
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Jun 27, 2007
12:28 am
1530
Hello, This is just two funny, the one who thought this up should get a medal. It's very to see how others think.!!!. Stay - Safe. Phil. Austin,Tx Alan...
Phil S
rebitnic
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Jun 27, 2007
5:54 pm
1531
Hello I am new, and this seems like a very tech oriented site. I may be here by mistake.? I am trying to find a set of hubs for a simple four frequency...
Harold
vwbiofuels
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Jul 2, 2007
3:36 am
1532
You can try the TekKit <http://www.tekstaronline.com/products/tekkit_body.html> and TekCAD <http://www.tekstaronline.com/products/tekcad.html> models. ... ...
Alan Michelson
a.michelson
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Jul 2, 2007
5:19 am
1533
Hello, I had a question in numerical analysis. Any suggestions are greatly appreciated. (1) Given F(x) = 0, numerically find the roots. Essentially, split an...
Boston Math
boston_math
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Jul 6, 2007
1:25 am
1534
Hey all, I have been working on a 6v geodesic dome design that requires only six strut lengths. (Based on the icosahedron) Using this theory; any frequency...
Harold
vwbiofuels
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Jul 23, 2007
8:51 pm
1535
Harold, Check out this site: http://www.desertdomes.com/rev4calc.html Your information is incorrect. There are nine lengths of struts in a 6v dome or sphere....
allenlubow@...
phi16
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Jul 24, 2007
1:51 pm
1536
... 1 lengths for http://www.desertdomes.com/rev1calc.html 2 lengths for http://www.desertdomes.com/rev2calc.html 3 lengths for...
Alan Michelson
a.michelson
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Jul 25, 2007
12:02 am
1537
Hello Allen, and all, Thank you for the website, Interesting. I have built a model of a 6v geodesic dome with 9 strut lengths (in 1987). Now I have built a 6v...
Harold
vwbiofuels
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Jul 25, 2007
6:31 am
1538
Harold, It sounds like your 6 strut design combines pairs of the 9-strut design that are similar in length. Since the differences are slight, with a model...
allenlubow@...
phi16
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Jul 25, 2007
12:37 pm
1539
Is it possible? Sure. But you wouldn't be able to call it a geodesic dome, strictly speaking. It's amazing how even the slightest deviations become readily...
allen Lubow
phi16
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Jul 27, 2007
8:36 am
1540
Hello All, Is there a formula for giving the number of possible configurations for connecting sequentially all twelve faces of a dodecahedron so that each face...
pyth7
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Aug 8, 2007
6:11 pm
1541
What you need to do is go to: * Dodecahedral Graph -- from Wolfram MathWorld <http://mathworld.wolfram.com/DodecahedralGraph.html> * Icosahedral Graph -- from...
Alan Michelson
a.michelson
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Aug 9, 2007
3:17 am
1543
This group has been pretty good about not posting off topic over the last 6 years (wow Polytopia for 6 years!)- but still a few slip through the cracks. I...
Dan
polychoron
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Nov 9, 2007
11:11 pm
1544
Anyone familiar with Theodorus of Cyrene's construction of square roots with a spiraling manifold of right triangles? ...
Dan
polychoron
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Nov 9, 2007
11:21 pm
1545
... http://courses.wcupa.edu/jkerriga/Lessons/A%20Lesson%20on%20Spirals.html ... n ATAN(1/(SQRT(n))) Degrees Cumulative Angles Degrees 1 0.7853981634...
Alan Michelson
a.michelson
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Nov 10, 2007
1:34 am
1546
Thanks for that table Alan! My thoughts are that Theodorus first constructed it with compass and ruler- which gave the required precision without much...
Dan
polychoron
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Nov 13, 2007
3:33 pm
1547
... * Trigonometry <http://mathworld.wolfram.com/Trigonometry.html> * Inverse Trigonometric Functions ...
Alan Michelson
a.michelson
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Nov 13, 2007
6:40 pm
1548
I have a question--a comment to the original post stated that 17 is the first number for which the even-odd concept used in the proof of the irrationality of...
John Chalmers
jhchalme
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Nov 13, 2007
7:48 pm
1549
... If it is a multiple <http://en.wikipedia.org/wiki/Multiple_%28mathematics%29> of two <http://en.wikipedia.org/wiki/Two> , then it is an even number, else...
Alan Michelson
a.michelson
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Nov 13, 2007
8:28 pm
1550
Thanks, I understand the example proof, but my question was whether there is something unique about 17 and its square root as implied in the post, other than...
John Chalmers
jhchalme
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Nov 13, 2007
8:36 pm
1551
Alan: Thanks--I was able to download McCabe's article on Theodorus's methods and answer my question. The previous reference I had was incorrect. --John...
John Chalmers
jhchalme
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Nov 13, 2007
8:47 pm
1552
... A Fermat prime <http://mathworld.wolfram.com/FermatPrime.html> is a Fermat number <http://mathworld.wolfram.com/FermatNumber.html> Fn = 2^(2^n)+1 that is...
Alan Michelson
a.michelson
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Nov 14, 2007
1:14 am
1553
I am a math/physics/electronics specialist as well as a very spiritually in-tuned. Looks like the last discussions have been numerology inclined. I will do my...
Mr Gray
mrzeta7
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Nov 25, 2007
4:44 am
1554
... There is going to be a Great Pyramid replica <http://en.wikipedia.org/wiki/Try2004> in Japan. You remember Paolo Soleri...
Alan Michelson
a.michelson
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Nov 26, 2007
1:03 am
1555
COMING today @ 12 noon 90.7 KPFK Radio Interview the Sound Exchange with Jay Kugelman Alan Michelson <amichelson2002@...> wrote: Gregg Fleishman was on...
Alan Michelson
a.michelson
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Feb 1, 2008
6:49 pm
1556
For those who are interested... Visit this website: http://home.att.net/~bob.rutkiewicz/physics.htm However, no mathematical equations found on this site... ...
Asdad Asdda
dennisatspeyk
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Feb 5, 2008
10:42 am
Messages 1526 - 1556 of 1613   Oldest  |  < Older  |  Newer >  |  Newest
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