Pimmy's experiment

From the picture, I'm trying to find the tension/compression by counting the amount of elastic bands which gives the existing stair angle.

I adapt it as the bridge function.

Hope you understand :)

Regards

Pimmy

aj camille

i cannot find anything on 'Genral Idea', an artist you have suggested
perhaps a miss-spelling?
i have only searched on the internet though

regards,