Picture balloon arches of different sizes and colors, creating a captivating spectrum of helium-filled balloons. Whether it’s ...

This is the kind of hack that [Günter] pulled off when he and [Peter] built a homemade hot air balloon to escape East Germany and the oppression of the Stasi in 1979. Like many East Germans who ...

As the vinegar and baking soda react, carbon dioxide gas will be produced, inflating the balloon and giving your puffer fish ...