The New Heavens
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In our eReader you can find the full English version of the book. Read The New Heavens Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book The New Heavens
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22. [*] [Footnote *: More complete details may be found in Michelson's LowellLectures on "Light-Waves and Their Uses, " University of ChicagoPress, 1907. ] To measure the diameter of a star we proceed in a similar way, but, as the angle it subtends is so small, we must use a very largetelescope, for the smaller the angle the farther apart must be thetwo holes over the object-glass (or the mirror, in case a reflectingtelescope is employed). In fact, when the holes are moved apart tothe full aper...ture of the 100-inch Hooker telescope, the interferencefringes are still visible even with the star Betelgeuse, though itsangular diameter is perhaps as great as that of any other star. Thus, we must build an attachment for the telescope, so arrangedas to permit us to move the openings still farther apart.
[Illustration: Fig. 23. Diagram showing outline of the 100-inchHooker telescope, and path of the two pencils of light from a starwhen under observation with the 20-foot Michelson interferometer.
What to read after The New Heavens?
You can find similar books in the "Read Also" column, or choose other free books by Hale George Ellery to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
22. [*] [Footnote *: More complete details may be found in Michelson's LowellLectures on "Light-Waves and Their Uses, " University of ChicagoPress, 1907. ] To measure the diameter of a star we proceed in a similar way, but, as the angle it subtends is so small, we must use a very largetelescope, for the smaller the angle the farther apart must be thetwo holes over the object-glass (or the mirror, in case a reflectingtelescope is employed). In fact, when the holes are moved apart tothe full aper...ture of the 100-inch Hooker telescope, the interferencefringes are still visible even with the star Betelgeuse, though itsangular diameter is perhaps as great as that of any other star. Thus, we must build an attachment for the telescope, so arrangedas to permit us to move the openings still farther apart.
[Illustration: Fig. 23. Diagram showing outline of the 100-inchHooker telescope, and path of the two pencils of light from a starwhen under observation with the 20-foot Michelson interferometer.
What to read after The New Heavens?
You can find similar books in the "Read Also" column, or choose other free books by Hale George Ellery to read onlineMoreLess
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