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 ...
NASA has successfully tested its X-66 aircraft in a wind tunnel, hoping it can reduce fuel consumption by at least 30%.
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback