Soc, December, 1912) has observed a number of new lines by passing a condensed discharge through mixtures of hydrogen and helium ... observed by Pickering in the spectrum of the star ς Puppis ...

THE discovery of helium lines in the spectrum of neon, by Mr. E. C. C. Baly, will necessitate a modification of the views we have expressed in our communication to the British Association at Bristol.

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Helium gas spreads quickly over the whole room area under the ... number of acquired points, center of the spectrum in ppm, width of the spectrum in ppm. Press the "AcquPars" tab for more settings and ...

Charles Townes was showing me a helium-neon laser in his laboratory ... that slice of the electromagnetic spectrum from red to violet. Making use of light beyond the visible realm has allowed ...

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Estimates of how fast the universe is expanding disagree. Could a new form of dark energy resolve the problem?

Ultraviolet The laser has output corresponding to the ultraviolet region of the spectrum. Ultraviolet is considered the wavelength range from 1 nm to 390 nm. Violet The laser has output corresponding ...

Since the first X-ray image of a comet was reported using an X-ray telescope in 1996, the investigation of charge exchange in ...