例文・使い方で印象づける「umbra」の覚え方


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...Sometimes, again,white incandescent waves emerge, and seem to throw luminous bridgesacross the central umbra...   Sometimes, again,white incandescent waves emerge, and seem to throw luminous bridgesacross the central umbraの読み方
Camille Flammarion Frances A. Welby 「Astronomy for Amateurs」

...Within the umbra there is sometimes seen a still darkerspot, called the nucleus...   Within the umbra there is sometimes seen a still darkerspot, called the nucleusの読み方
Thomas Orchard 「The Astronomy of Milton's 'Paradise Lost'」

...The umbra is generally uniformly dark, butat times filmy luminous clouds have been observed floating over it...   The umbra is generally uniformly dark, butat times filmy luminous clouds have been observed floating over itの読み方
Thomas Orchard 「The Astronomy of Milton's 'Paradise Lost'」

...Thenucleus is believed to be the orifice of a tubular depression in thefloor of the umbra, prolonged downwards to an unknown depth...   Thenucleus is believed to be the orifice of a tubular depression in thefloor of the umbra, prolonged downwards to an unknown depthの読み方
Thomas Orchard 「The Astronomy of Milton's 'Paradise Lost'」

...Thepenumbra is brightest at its inner edge, where the filaments present amarked contrast when compared with the dark cavity of the umbra whichthey surround and overhang...   Thepenumbra is brightest at its inner edge, where the filaments present amarked contrast when compared with the dark cavity of the umbra whichthey surround and overhangの読み方
Thomas Orchard 「The Astronomy of Milton's 'Paradise Lost'」

...In some instances the umbra alone has a breadth of 20,000 or30,000 miles—three times the extent of the diameter of the Earth...   In some instances the umbra alone has a breadth of 20,000 or30,000 miles—three times the extent of the diameter of the Earthの読み方
Thomas Orchard 「The Astronomy of Milton's 'Paradise Lost'」

...From the fact that the spectrum is darkened we learn that there isconsiderable general absorption of light in the umbra...   From the fact that the spectrum is darkened we learn that there isconsiderable general absorption of light in the umbraの読み方
Robert Stawell Ball 「The Story of the Heavens」

...A spot is usually composedof a dark central portion called the umbra, and a less dark fringearound this called the penumbra (, p...   A spot is usually composedof a dark central portion called the umbra, and a less dark fringearound this called the penumbra (, pの読み方
Cecil G. Dolmage 「Astronomy of To-day」

...The umbra ofa good-sized spot could indeed engulf at once many bodies the size ofour earth...   The umbra ofa good-sized spot could indeed engulf at once many bodies the size ofour earthの読み方
Cecil G. Dolmage 「Astronomy of To-day」

...When asun-spot has completed its period of existence, the photospheric matteroverwhelms the penumbra, and rushes into the umbra, which itobliterates, causing the spot to disappear...   When asun-spot has completed its period of existence, the photospheric matteroverwhelms the penumbra, and rushes into the umbra, which itobliterates, causing the spot to disappearの読み方
Thomas Orchard 「The Astronomy of Milton's 'Paradise Lost'」

...The umbra of a spot is not actually dark...   The umbra of a spot is not actually darkの読み方
Cecil G. Dolmage 「Astronomy of To-day」

...It is bordered onboth sides by the spectrum of the penumbra, which is much brighterthan that of the umbra, but fainter than that of the adjoining regionsof the sun...   It is bordered onboth sides by the spectrum of the penumbra, which is much brighterthan that of the umbra, but fainter than that of the adjoining regionsof the sunの読み方
Robert Stawell Ball 「The Story of the Heavens」

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