Helium 101 | National Geographic
Автор: National Geographic
Загружено: 2018-08-31
Просмотров: 203704
Описание:
What is helium used for, and where does it come from? Learn facts about this noble gas, including how it causes balloons to float, its surprising uses in medicine and exploration, and how its limited availability on Earth could affect science and industry.
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Helium 101 | National Geographic
• Helium 101 | National Geographic
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