At first glance, a flyable airplane made of cardboard sounds almost like a joke – the sort of thing that collapses long before it ever leaves the ground. But YouTuber and serial tinkerer Peter Sripol ...
A dive scooter, or a submersible ducted fan used by divers, is not a new invention. They’ve been around for years, used by everyone from the villain of the week on Miami Vice to professional divers.
A dive scooter, or a submersible ducted fan used by divers, is not a new invention. They’ve been around for years, used by everyone from the villain of the week on Miami Vice to professional divers.
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