By 1986, Cleveland was in need of some positive press. The city had become notorious for a series of misfortunes in the 1970s ...

David discovers the omnipresence and properties of air while contemplating a feather that floated to the ground. He learns ...

Production of carbon dioxide from reaction of citric acid and baking soda ...

Unfortunately, no one has followed a balloon up to see what really happens up there as far as I know. And on top of that, you have to keep adding air without tying a knot to over-inflate a balloon ...

Gastric balloons, typically filled with air or saline, are inserted into the ... maintaining the sensation of fullness without the need for constant inflation. “We can have this balloon that ...