Understand 1,700 Mechanical Linkages with These Helpful Animations
Amazing. Now I'm left to wonder what all these contraptions are good for. For example, why would one use something like this "Persian joint": <a href="https://www.youtube.com/watch?v=mFoiSRWdW5E" rel="nofollow">https://www.youtube.com/watch?v=mFoiSRWdW5E</a> ?