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Polytopia

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Group Information

  • Members: 410
  • Category: Geometry
  • Founded: Dec 10, 2001
  • Language: English
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Messages 180 - 210 of 1736   Oldest  |  < Older  |  Newer >  |  Newest
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180 dan duddy
polychoron Send Email
Oct 1, 2003
5:14 pm
--A bit about Polytopia-- I used to use some of my fluorescent polyhedron models as decoration for electronic dance music parties (psytrance) in NY. Also i...
181 Paul Erlich
emotionaljou... Send Email
Oct 1, 2003
9:02 pm
i wanted to see your attachments, but it says they're 'not stored'. can you upload them to the files (or photos) folder of this list instead?...
182 allenlubow@...
phi16 Send Email
Oct 2, 2003
3:21 am
A NYC group gathering sounds great. Sign me up, Dan. Allen...
183 Dan
polychoron Send Email
Oct 2, 2003
5:43 pm
Hello Polytopians, I've created a new group called Math Art NYC. groups.yahoo.com/group/mathartnyc I decided this is the best way to gather people for the kind...
184 mail@...
astrologicon Send Email
Oct 2, 2003
6:05 pm
Dear Dan , thank you for the information about the news of zometool. Please visit my website. biagio di carlo via berlino 2, villa raspa, spoltore. 65010...
185 Malcolm Schosha
malcolmschosha Send Email
Oct 2, 2003
7:41 pm
Dan, One of the NYC public spaces might be good for meetings. The one I know is where the Whitney Museum Anex is located, on 42st, across from Grand Central....
186 Stuart Quimby
stuartquimby Send Email
Oct 3, 2003
1:50 pm
Hi Dan, Count me in! I'm about 100 mi. upstate from NYC Stuart Quimby Design Science Toys, Ltd. ... -- Stuart Quimby Pres. Design Science Toys, Ltd. 172...
187 allenlubow@...
phi16 Send Email
Oct 3, 2003
4:02 pm
Depending upon how big the group is meeting at my office may be a possibility. We're at 46th St and Ave of the Americas. Allen Lubow...
188 Dan
polychoron Send Email
Oct 4, 2003
12:46 am
Now that Math Art NYC is running I will automaticaly add people I know from NYC and the tri-state area that would be able to come to a Polytopia meeting. You...
189 sikkagurgaon Send Email Oct 4, 2003
6:47 am
Hello Group, I have inspired most from Vedic Mathematics and hopes that you will also take interest. Vedic Mathematics is becoming popular all over the world...
191 Dan
polychoron Send Email
Oct 4, 2003
5:24 pm
You'll be amazed at how much math content is in the simpsons (one of my favorite shows). www.simpsonsmath.com...
192 gaurav sikka
sikkagurgaon Send Email
Oct 7, 2003
11:09 am
Hello Friends, Vedic Mathematics Becomeing popular because the uses of Vedic Mathematics are very broad. Sixteen Sutras and thirteen sub-Sutras can be applied...
193 gaurav sikka
sikkagurgaon Send Email
Oct 8, 2003
6:27 am
Hi Everbody, You can learn Vedic Mathematics (Learn to solve problems 10 times faster)free. Click Here to find this out . ... This group is developed...
194 Jon Perry
jon_perryuk Send Email
Oct 8, 2003
3:23 pm
I think I have proved this, and I am looking for a respectable journal to publish it. Does anyone on this list have any suggestions? I live in the UK and would...
195 Charlie
raveliberator Send Email
Oct 19, 2003
10:17 pm
Perplexing observations beamed back by a NASA spacecraft are fuelling debates about a mystery of biblical proportions - is our Universe infinite? Scientists...
196 Paul Hildebrandt
paul@... Send Email
Oct 20, 2003
9:15 pm
The 120-cell (hyperdodecahedron)seems to be the closest model of the hall of mirrors effect in the dodecahedral universe. I just got a message from artist (and...
197 Mike Dubbeld
miike@... Send Email
Oct 21, 2003
5:18 am
Re: [Polytopia] Is the universe a dodecahedron?dodecahedron You might want to check this guy out. From alt.sci.physics.new-theories NG Post John Sefton...
198 dan duddy
polychoron Send Email
Oct 22, 2003
2:55 am
Another possible expolanation for the hall of mirror effect besides the 4d hyperdodecahedron is if the universe was hyperbolic, then dodecahedrons could pack...
199 toadboyjoe Send Email Oct 24, 2003
10:14 am
If you have a curve that is a portion of circle, is it possible to figure out the radius of the would be circle? Practical application for me. I make wrought...
200 Charlie
raveliberator Send Email
Oct 24, 2003
11:24 am
you can just lie two straight pieces at the two endpoints of the curve, each perpendicular the the tangent of the would-be-circle at the endpoints and where...
201 J Vincent Beall
vincebeall Send Email
Oct 24, 2003
5:24 pm
It is solvable with trigonometric functions. You must find the midpoint on the arc, and construct a perpendicular line that bisects the arc and the chord that...
202 mikebispham@...
mikebispham Send Email
Oct 24, 2003
5:47 pm
Hi Joe, Vincent A variation; I've had the same problem with bow windows: construct two perpendiculars to parts of the curve near either end. Its the same...
203 J Vincent Beall
vincebeall Send Email
Oct 24, 2003
9:20 pm
Hi Mike, Joe Mike's method is correct and will work well if the arc itself is available and you can do the necessary drawing with compass and straight edge....
204 Edward Moore
emoore06905 Send Email
Oct 24, 2003
11:06 pm
If you can guarantee that the curve is circular, there is a formula that will allow you to take just the distance between the ends (x) and the height (y)....
205 J Vincent Beall
vincebeall Send Email
Oct 25, 2003
3:00 am
Hi Ed I am unable to get a sensible result from your formula. Are you sure that (x^2/4)= (y *(2r-y))is the correct statement? But, your post did cause me to...
206 toadboyjoe Send Email Oct 25, 2003
7:08 am
Groovy. I remember the compass, angle bisecting stuff from school now, hehe. -Joe...
207 Edward Moore
emoore06905 Send Email
Oct 25, 2003
10:48 am
The formula is right - are you using the right values for x and y? x is the whole, straight-line distance between the ends ot the curve, and y is the distnace...
208 J Vincent Beall
vincebeall Send Email
Oct 25, 2003
3:11 pm
... From: Edward Moore To: Polytopia@yahoogroups.com Sent: Saturday, October 25, 2003 6:48 AM Subject: Re: [Polytopia] Re: Question about circles........ ;-) ...
209 J Vincent Beall
vincebeall Send Email
Oct 25, 2003
3:39 pm
I have reduced the algebra in the method I gave and come up with this: R = ( X^2 + Y ) / 2 Vince ... From: J Vincent Beall To: Polytopia@yahoogroups.com Sent:...
210 Edward Moore
emoore06905 Send Email
Oct 25, 2003
3:47 pm
Draw a circle, a diameter crossing the circle at points A and B, and a perpendicular bisector to the diameter that cuts through the circle at points C and D....
Messages 180 - 210 of 1736   Oldest  |  < Older  |  Newer >  |  Newest
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