Two years ago, Ukrainian farmer and inventor Yuriy Serbin rigged up a self-powered potato digger that feeds into a rectangular basket dragged behind it. It looked like this:

The problem: Every time the bin fills up, Yuriy must bend over, lift the bin and empty it into a wheelbarrow. Doing this dozens or hundreds of times a day gets hard on the back.

After thinking about the problem, last year he came up with a modification by hacking some motorcycle parts and farm equipment together. It looks like this (all of the new parts are green):

Here's how it works:

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I don't know if you watched the video until the end, but Yuriy reveals that 1) he's no longer exhausted after getting through the whole field, and 2) he knows the design isn't perfect; the smaller potatoes fall through the cracks.

That may lead to some marital trouble--he mentions it's his wife who goes through the field to pick up the small ones afterwards.