 | 1801 - 658 σελίδες
...distant from a point within, call- LJL!| ed the centre. The sphere may -jj', be conceived to be formed by the revolution of a semicircle about its diameter, which remains fixed. 9. The axis of a solid is a line, drawn from the midd« of one end to the middle of the opposite end... | |
 | William Nicholson - 1809 - 700 σελίδες
...distant from a point within called its centre. Euclid defines the globe or sphere, to be a solid figure described by the revolution of a semi-circle about its diameter, which remains unmoved. Also, its axis is the fixed line or diameter abeut which the semi-circle revolves ; and its... | |
 | William Nicholson - 1809 - 752 σελίδες
...distant from a point within called its centre. Euclid defines Ihr globe or sphere, to bè a solid figure described by the revolution of a semi-circle about its diameter, which remains unmoved. Also, its axis is the fixed line or diameter about which the semi-circle revolves ; and its... | |
 | Euclides - 1814 - 560 σελίδες
...similar, and parallel to one another: and the others parallelograms. XIV. A sphere is a solid figure described by the revolution of a semicircle about its diameter, which remains unmoved. •'XV. The axis of a sphere is the fixed straight line about which the semicircle revolves.... | |
 | Euclides - 1816 - 588 σελίδες
...similar, and parallel to one another : and the others parallelograms. XIV. A sphere is a solid figure described by the revolution of a semicircle about its diameter, which remains unmoved. 'XV. The axis of a sphere is the fixed straight line about which the semicircle revolves.... | |
 | William Nicholson - 1819 - 394 σελίδες
...distant from a point within, called its centre. Euclid defines the globe or sphere, to be a solid figure described by the revolution of a semi-circle about its diameter, which remains unmoved. Also, its axis is the fixed line or diameter about which the semi-circle revolves ; and its... | |
 | Edward Bruce (bookseller.) - 1821 - 418 σελίδες
...perfectly round body; its middle point is called the centre. A globe, or sphere, is a solid, formed by the revolution of a semicircle about its diameter, which remains fixed. The axis of a sphere is the right line about which the semicircle revolves. 6. A great circle divides the... | |
 | Peter Nicholson - 1825 - 1046 σελίδες
...XIII. OEOMBTBT. rallel to one another; and the others parallelograms. XIV. A sphere is a solid figure described by the revolution of a semicircle about its diameter, which remains unmoved. XV. The axis of a sphere is the fixed straight line about which the semicircle revolve».... | |
 | Robert Simson - 1827 - 546 σελίδες
...similar, and parallel to one another; and the others parallelograms. XIV. A sphere is a solid figure described by the revolution of a semicircle about its diameter, which remains unmoved. XV. The axis of a sphere is the fixed straight line about which the semicircle revolves. XVI.... | |
 | John Bonnycastle - 1829 - 256 σελίδες
...quadrangular pyramid; when a pentagon, it is called a pentagonal pyramid, &c. 8. A sphere is a solid described by the revolution of a semicircle about its diameter, which remains fixed. 9. The centre of a sphere is a point within the figure, every where equally distant from the convex... | |
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A sphere is a solid figure described by the revolution of a semicircle about its diameter, which remains unmoved. 
