A balloon filled with hydrogen gas also releases heat when lit on fire. Due to differences in energy density, the crystallization of sodium acetate releases more heat per mole than the hydrogen gas ...

De Rozier's experimental system consists of a hydrogen balloon and a hot air balloon tied together. Tragically, the craft explodes half an hour after takeoff. This double balloon helium/hot air ...

Giang Pham's birthday celebration in Hanoi turned tragic when a hydrogen-filled balloon exploded, causing facial burns. Captured on video, the incident highlighted the dangers of flammable ...

Explorer II, a helium balloon, reached 22,066 meters with two Army Air Corps Captains aboard. It’s predecessor, Explorer I, was a hydrogen balloon, and despite reaching 18,475 meters ...

On December 1, 1783, as many as 400,000 people—half the city’s population—swarmed into the area around the Château des Tuileries to watch a hydrogen balloon carry J.A.-C. Charles and M.N ...

PUTRAJAYA (Bernama): The balloon explosion incident in Dataran Putrajaya on Saturday (Oct 12) was caused by the use of hydrogen in the balloons, says Putrajaya OCPD Asst Comm Rosly Hasan (pic) ...