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Перевод: helium

[существительное]
гелий

Тезаурус:

1. Lasers, helium balloons, streamers, flags, dry ice, disco lights, computer graphics are great at election rallies or festivals but inappropriate at most serious commercial conferences.
2. Visual effects feature largely in this community arts venture, and have included helium balloons and fireworks.
3. In spite of the revival of interest in airships now they can be filled with cheap helium, they are still unattractive in most circles and it is no good quoting the figures for people killed in airship crashes against those killed every day on the roads and similar statistics, or the successful career of the R100, although filled with hydrogen.
4. Light gases, for example hydrogen, oxygen, nitrogen, helium, carbon monoxide and methane are however, an important exception being non-odorous.
5. Many bizarre proposals have been put forward to save the tower in recent years, including flying a huge helium balloon from its top, securing it with a giant safety pin, and lopping off its uppermost floor, which is a later addition.
6. Its lifting gas is not hydrogen, which is extremely flammable, but helium, which is inert.
7. With the youngest of her three children now at nursery school near their home in Somerset, Helen works part-time in the business she set up with a friend, organising helium balloon decorations for parties and weddings.
8. There were racks of wet suits, dry suits, helmets, air tanks, helium, oxygen and others he did not recognise.
9. Its telescope will have a mirror 60 cm across, and will be cooled by liquid helium to a temperature of only a few degrees above absolute zero; and its detectors will be sensitive to wavelengths up to a maximum of 120 micrometres.
10. The team at Stanford achieved its record resolution by using liquid helium gas as a coupling medium at a temperature just above absolute zero, 0.1 K. At extremely low temperatures acoustic attenuation becomes almost insignificant, but the range of materials that can be studied is severely limited.
11. The gases solidify between 25K and 120K, so liquid helium or liquid hydrogen are used as refrigerants to prepare a solid matrix.
12. Which is heavier, a fluorine atom or five helium atoms?
13. Chemists initially make polyacetylene in the cis form, and convert this to the trans by heating it to 200C in helium.