Rotational–vibrational coupling scale model

[Dr Lots-o'watts]

I feel like playing with a scale model of this:

http://en.wikipedia.org/wiki/Rotational–vibrational_coupling

Do chemistry supply stores sell any? For educationnal purposes? Or do I have to build one?

 

[chemisttree]

You have to build it... and fly it into space on the Shuttle! Of course, you could build your own rocket or try to earn a ride on a http://en.wikipedia.org/wiki/Vomit_Comet"

 

[alxm]

Do chemistry supply stores sell any? For educationnal purposes? Or do I have to build one?

Wouldn't really work as a good model, considering the molecular vibrational states are quantized. (and we like to pretend rotational-vibrational coupling doesn't exist when constructing partition functions)

But yeah, it's mostly just sticks.

 

[Dr Lots-o'watts]

@chemisttree: I'd be satisfied with 2D, and wouldn't complain about a little axial friction.

@alxm: Ok, but it's still interesting even as a classical system. It isn't obvious for everyone to visualize just how the spring constant affects rotation. Or how rotation speed affects vibration amplitude.