 As to getting correct notions on this subject by drawing circles on paper, or, still worse, from those very childish toys called orreries, it is out of the question.  Outlines of Astronomy - Strona 281autor: John Frederick William Herschel - 1857 - Liczba stron: 573Pełny widok - Informacje o książce
 | Perry Fairfax Nursey - 1849 - Liczba stron: 650
...small plum upon the circumference of a circle more than a mi!e and a half; and Neptnne a good sized plum on a circle about two miles and a half in diameter....this subject by drawing circles on paper, or still more from those very childish toys called orreries, it is out of the question. To imitate the motions... | |
 | 1849 - Liczba stron: 656
...small plum upon the circumference of a circle more than a mile and a half; and Neptune a good sized plum on a circle about two miles and a half in diameter....this subject by drawing circles on paper, or still more from those very childish toy» called orreries, it is out of the question. To imitate the motions... | |
 | Hiram Mattison - 1849 - Liczba stron: 304
...cherry, or small plum, upon a circumference of a circle more than a mile and a half in diameter. ***** To imitate the motions of the planets, in the abovementioned orbits, Mercury must revolve in its orbit in 41 seconds ; Venus in 4 min. 14 sec. ; the Earth in 7 min. ; Mars in 4 min.... | |
 | 1849 - Liczba stron: 654
...mile and a half; and Neptnne a ?ood sized plum on a circle about two miles and a half in diameter. A] to getting correct notions on this subject by drawing circles on paper, or stilt more from those very childish toys called orreries, it is out of the question. To imitate the... | |
 | 1850 - Liczba stron: 556
...circle of 654 feet; Juno, Ceres, Vesta, and Pallas, grains of sand, in orbits of from 1000 to 12000 feet ; Jupiter a moderate-sized orange, in a circle...describe its own diameter in 41 seconds ; Venus in 4m 14"; the Earth, in 7 minutes ; Mars, in 4m 48" ; Jupiter, 2h 56°' ; Saturn, in 3h 1 3m ; Uranus,... | |
 | Horatio Nelson Robinson - 1850 - Liczba stron: 378
...and Uranus a full-sized cherry, or small plum, upon the circumference of a circle more than a mile and a half in diameter. As to getting correct notions...question. To imitate the motions of the planets in the View of above-mentioned orbits, Mercury must describe its own diameter in 41 (he planetary seconds;... | |
 | 1850 - Liczba stron: 790
...diameter. Aa to getting correct notions ou this subject by drawing circles 26 РОЕТКУ. THE PROTESTANT. on paper, or, still worse, from those very childish...the motions of the planets, in the above-mentioned orbit«, Mercury must describe ite own diameter in 41 seconds ; Venus, in 4 minutes, 14 seconds ¡... | |
 | Robert Joseph Sullivan - 1854 - Liczba stron: 332
...; am" uninus, u musized cherry, or small plum, upon the circumference of a circle more than a mile and a half in diameter. As to getting correct notions...toys called orreries, it is out of the question." — Sir J. HertcheCs Astronomy. Having taught the pupils as much of Mathematical Geography it will... | |
 | 1843 - Liczba stron: 582
...cherry, or small plum, upon the circumference of a circle more than a mile and a half in diameter. To imitate the motions of the planets in the above-mentioned...orbits, Mercury must describe its own diameter in forty-one seconds ; Venus, in four minutes and fourteen seconds ; the Earth, in seven minutes; Mars,... | |
 | Emma Willard - 1856 - Liczba stron: 230
...; Saturn, a small orange, on a circle of four-fifths of a mile ; Uranus, a full-sized cherry, or a small plum , upon the circumference of a circle more...toys called orreries, it is out of the question." meet tbe heavens, what circle vrill it there produce? (All thc»e lines and circles tTtcpupils may... | |
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