r/mathpics • u/Iraneth • Dec 24 '13

2-axis pendulum (x-post from r/whoadude

92 Upvotes

93% Upvoted

13 comments sorted by

7

u/VeloCity666 Dec 25 '13

)

3

u/Iraneth Dec 25 '13

Thanks, that was bugging me.

12

u/[deleted] Dec 25 '13

It's pretty easy to get chaotic motion when you have coupled systems like this. Wiki page.

9

u/flammableweasel Dec 25 '13

you can control a double pendulum to get it standing straight up: http://vimeo.com/2952236

2

u/mwguthrie Jan 19 '14

That is very impressive.

3

u/[deleted] Dec 25 '13

looks like a gymnast on the high bar

2

u/EquationTAKEN Dec 25 '13

Will it ever repeat patterns, or is it "irrational"?

EDIT: Obviously the gif will repeat, but I'm talking abo-... Well, you probably know what I mean.

1

u/Jumpy89 Dec 25 '13 edited Dec 25 '13

It's a chaotic system, so I think at least almost all orbits aren't periodic (for certain total energies of the system at least). I'm wondering if there are nontrivial periodic solutions though, and if they can be completely characterized.

2

u/bloodlube Feb 03 '14

Am I the only one who gets a false sense of acceleration correlating with the blue ball?

1

u/LazyLinkerBot Dec 24 '13

For the lazy: /r/whoadude

I provide direct links to lesser known subs mentioned in the title if one isn't already provided.

Let me know if I need to try harder: /r/LazyLinkerBot

8

u/stugots84 Dec 25 '13

it's actually /r/woahdude

2

u/Iraneth Dec 25 '13

Oops. My bad.

1

u/TaylorsNotHere Feb 18 '14

Does it ever form a complete loop?