بالون هيليوم. كم بالون هيليوم تحتاج لرفع نفسك؟

4 92 : 261—278 [268] Makhijani, Arjun; Gurney, Kevin 1995
"Helium concentration in the Earth's lower atmosphere" JetStream — Online School for Weather

طريقة نفخ بالونات الهيليوم

The Encyclopedia of the Chemical Elements.

12
بالون
"Helium escape from the terrestrial atmosphere: The ion outflow mechanism"
هيليوم
"Solubility of gases in water: Correlation between solubility and the number of water molecules in the first solvation shell"
بالون
Proceedings of the Royal Society of London
"Working gases in thermoacoustic engines" "Evidence for a New Phase of Solid He 3"
281 1—2 : 636—705 12091211 Department of Physics University of Alberta

بالون

, in Handbook of Chemistry and Physics 81st edition, CRC press.

بالون
"Composition of Gas from a Well at Dexter, Kan"
هيليوم
New York: Van Nostrand Reinhold
طريقة نفخ بالونات الهيليوم
Boca Raton FL : CRC Press