Crossword-Solution: SPECTROHELIOGRAPH
We have 1 clue for the answer “SPECTROHELIOGRAPH”
| Clue | Answers |
|---|---|
| HALE (George Ellery), creation of | 1 answer |
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Hint 1 meaning
The superficial contents of any figure; the surface included
within any given lines; superficial extent; as, the area of a square or
a triangle.
Hint 2 anagram
AEAR
Hint 3 another clue
CERTAIN BRAIN SIZE
16 +2
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Sentences with SPECTROHELIOGRAPH (5)
Professor Hale, at the Yerkes Observatory, has had in operation from time to time, for several years, his ingenious spectroheliograph, which photographs the sun by a single ray of the spectrum.
Made with the spectroheliograph, showing the immense vortices, or whirling storms like tornadoes, that centre in sun-spots.
With this instrument, called a spectroheliograph, it is possible to photograph the faculæ in all parts of the sun's disc, and thus to obtain a much more complete history of them, and there is no doubt whatever of their variation sympathetically with the spots.
THE BREAK IN 1882 IN THE VANE CURVE IS DUE TO THE OMISSION OF EVIDENTLY ACCIDENTAL TURNS FROM THAT DATE.] The chromosphere, from which shoot out the prominences or "red flames," can now be observed without an eclipse if we employ the beautiful instrument above-mentioned, the spectroheliograph; and Professor Hale has succeeded in photographing spots, faculæ, and prominences all on the same plate.
Hale devised on the same principle the "spectroheliograph," an instrument by which the sun's disk can be photographed in calcium-light by imparting a rapid movement to its image relatively to the sensitive plate; and the method has proved in many ways fruitful.