For decades, engineers have been looking for a clean alternative fuel to keep the world moving into the future without all of the pollution from fossils. One idea that surprises many is just using air. Compressed air that is. Of course, in a real car it’s not so simple, Aliaksei Zholner was able to build a very tiny V-8 engine from just paper that impressively runs on just compressed air. This video has gone viral with over half a million views!