helium
70
3.3
- noun
- /ˈhiːliəm/
- Specialized
:
helio
- And why did I bring helium instead of air?
- a helium-filled balloon
- helium gas
- liquid helium
So why doesn't helium do the same thing?
- So why doesn't helium do the same thing?
- And that's of course, that fusion, hydrogen to helium is how the sun is shining.
- But the question is, why does helium make your voice higher?
- And I want you guys to hear this with no helium balloon chipmunk effect.
- So, you know, hydrogen and helium we think come from The Big Bang.
- The first one was that when helium atoms touch each other, they repel.
- The boron fused with the protons and created helium nuclei which they could measure.
- So we had the the hotter gas, just hydrogen and helium that made the first stars.
- So therefore sound travels faster in the helium gas.
Examples
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Balloons are often filled with helium to make them float in the air.
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This is helium being squeezed out of a balloon.
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But the question is, why does helium make your voice higher?
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Is this great value helium or is this just helium?
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Balloons are often filled with a gas called helium to make them fly high.
Fiction book (1999) -
So let's assume we have a helium atom.
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The first person who inhaled helium must have been so relieved.
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I think lots of people own helium tanks, Stacy.
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Alfie's been down here putting helium in all these balloons for Sean.
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We've got balloons and ribbons and the helium tank and also party cooler.
Synonyms
1
3.7
A very light colorless gas used to fill balloons and cool scientific equipment
Compounds
Surface Forms
Etymology
The word helium comes from the Greek Helios meaning 'sun'. Scientists first saw this very light gas in sunlight, so they named it after the sun, which helps explain why we use helium in balloons.