20 Most Useless Inventions Ever Made

From glue sticks filled with butter to shoes with an in-built air conditioning system, we count 20 of the most bizarre and utterly useless inventions some people actually believed might take off in mainstream culture.
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Info sources: http://pastebin.com/jQJxh3y1
Background audio copyright Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0
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Видео 20 Most Useless Inventions Ever Made канала Planet Dolan