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»» forums  subject: Intriguing Items of Discovery 100 replies on 7 pages. most recent reply: 29-Jun-07 19:58 by matthew102000

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qwertilliopasd »» models »» homepage Re: Intriguing Items of Discovery   posted: 08-Jul-02 23:58   »»  This one: http://www.sodaplay.com/constuctor/player.htm?&getmodel=MrBiped+Odd

Spydro »» models Re: Intriguing Items of Discovery   posted: 09-Jul-02 01:16   »»  What, exactly is a 'zip-spring'? (Im lost...)

qwertilliopasd »» models »» homepage Re: Intriguing Items of Discovery   posted: 09-Jul-02 01:26   »»  "Zip-Spring" is my name for a spring with no length at rest.

Spydro »» models Re: Intriguing Items of Discovery   posted: 09-Jul-02 01:32   »»  How, then, are they made? I guess I have made them before, by accident, but... Also, you say no length at rest; the ones in PandorasToyBox are at rest, and they have a ...length...? I should probably just stop wondering...

Lectvay »» models »» homepage Re: Intriguing Items of Discovery   posted: 09-Jul-02 02:02   »»  http://sodaplay.com/constructor/player.htm?&getmodel=MrBiped+Odd This is all very interesting. I wonder if Ed could shed some light. I am certainly still confused. Spydro, never stop wondering! There was a discussion of zero-length springs in the following topic: http://sodarace.net/forum/thread.jsp?forum=17&thread=315 I hope this helps. Let me know if it needs any clarification.

qwertilliopasd »» models »» homepage Re: Intriguing Items of Discovery   posted: 09-Jul-02 02:03   »»  The Diagonals are normal springs. The sides are the no-length springs. The no-lengths are being held taght by the regular springs (with the same rule used for tension springs) (You can test this by deleting different springs.)

qwertilliopasd »» models »» homepage Re: Intriguing Items of Discovery   posted: 09-Jul-02 02:04   »»  (I concider "at rest" just the two masses and the spring)

qwertilliopasd »» models »» homepage Re: Intriguing Items of Discovery   posted: 09-Jul-02 02:42   »»  Does anybody else have weird little things that boggle the mind?

Coaldiamond »» models Re: Intriguing Items of Discovery   posted: 09-Jul-02 02:44   »»  My model Turnover. It was a an accident, really. I have no idea how it works, but I probably should have tried harder to figure that out. http://sodaplay.com/constructor/player.htm?&getmodel=Coaldiamond+Turnover

qwertilliopasd »» models »» homepage Re: Intriguing Items of Discovery   posted: 09-Jul-02 02:45   »»  (And Spy; wonder is the key to enlightenment...)

Lectvay »» models »» homepage Re: Intriguing Items of Discovery   posted: 09-Jul-02 05:03   »»  I really loved Turnover when I saw it. It's one of those models that looks so incredibly 3-dimensional that it's frustrating to know that it isn't! How did you manage to accidently make this? It's very difficult to completely visualize and understand how and why it works the way it does, for me at least. But run it at verys low speed with no gravity, and observe the spinning motion. All the behavior "works out" and has a rational expaination, of course. Very cool accident ;)

qwertilliopasd »» models »» homepage Re: Intriguing Items of Discovery   posted: 09-Jul-02 05:44   »»  Yes, somse of the greatest things are accidents

guest: _coolhand_ Re: Intriguing Items of Discovery   posted: 09-Jul-02 09:03   »»  im not 100% sure but i think it is because the zero length springs screw up the calculations sodaplay uses to calculate the force generated by the a displaced spring. I dont remember my physics too well, so I cant be too sure of that.

guest: _coolhand_ Re: Intriguing Items of Discovery   posted: 09-Jul-02 09:14   »»  heres an interesting thought that occured to me as i was playing with this more: a zero length spring never resists compression. so as you deform the square into a rectangle or whatever, the energy needed to stretch two side springs must be equal to the energy gained by returning the other two side springs to their natural zero length. Again, i think this is a peculiarity of zero length springs, since a normal spring would resist more as it is stretched more. But since a zip-spring has no length, there is no measure of 'how bad the spring is stretched'. the ration of natural length to stretched length is undefined. It probably works out to a constant value, which is why everything cancels out. hope some of that was rational, Alex

me_myself_and_i »» models Re: Intriguing Items of Discovery   posted: 09-Jul-02 14:19   »»  what is a zipspring??

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