Casual Friday — recursive Legos

In light of the recent loss of Benoit Mandelbrot, I thought I should bring you something appropriately recursive this Friday. So here it is — a machine made out of Lego blocks that “prints” things using other Lego blocks:

If you have some time on your hands, the maker of this contraption even provides detailed directions on how you can build one yourself!

H/T: Discover Magazine blog

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