An air-filled balloon cooled in liquid nitrogen will shrink. When warmed back up in air, the balloon re-inflates. Skilled individuals can make balloon animals to dunk in liquid nitrogen. Otherwise, ...

The mother-of-two was blowing up balloons with her family and friends for her child's first birthday party when a bit of fun ...

Several pre-shrunk balloons are pulled from a single Dewar of liquid nitrogen and inflate back to their original size. Blow balloons up and tie off.. Tie string at top of balloon. Shrink balloons by ...

Chemistry has saved the day! A relatively small amount of sodium azide (4.6 ounces or 130 g) will produce a lot of nitrogen gas very quickly; it takes almost five party balloons’ worth of gas to fill ...

The balloon stayed aloft for a total of 57 days ... The telescope measured carbon, oxygen and nitrogen emissions from the material between stars to help scientists better understand the lifecycle ...

MONTGOMERY, Ala. (AP) — The state of Alabama urged a federal judge Tuesday to allow the nation’s fourth execution with nitrogen gas to proceed next week, but a doctor who witnessed an earlier ...