| Colin Macfarquhar, George Gleig - 1797
...bieadth of the fector when open. The real inventor of this valuable indrument ¡e unknown ; yet of fo **much merit has the invention appeared, that it was claimed by Galileo, and** difputed by nations. The feftot is founded on the fourth proposition ef the fixth book of Euclid ;... | |
| Encyclopaedia Britannica - 1810
...breadth of the leclor when open. The real inventor of this valuable infiniment is unknown ; yet of fo **much merit has the invention appeared, that it was claimed by Galileo, and** difputed by nations. The feélor is founded on the fourth proportion of the fixth book of Euclid ;... | |
| Robert Gibson - 1811 - 508 sider
...compass, which are the only means that geometry makes use of for measuring, whether in spe ulation **or practice. The real inventor of this valuable instrument...invention appeared, that it was claimed by Galileo,** und disputed by nations. This instrument derives its name from the tenth definition of the third book... | |
| Robert Gibson - 1814 - 508 sider
...drawing, there is none so extensive in its use, or of such general application, as the sector. It is an **universal scale, uniting, as it were, angles and parallel...sector of a circle. It is formed of two equal rules** called legs ; these legs are moveable about the centre of a joint, and will, consequently, by their... | |
| 1816
...breadth of the fector when open. The real inventor of this valuable inftrument is unknown ; yet of fo **much merit has the invention appeared, that it was claimed by Galileo, and** difputed by nations. The fector is founded on the 4th propofition of the 6th book of Euclid ; where... | |
| Robert Gibson - 1821 - 544 sider
...drawing, there is none so extensive in its use, or of such general application, as the sector. lt is an **universal scale; uniting, as it were, angles and parallel...of Euclid, where he defines the sector of a circle.** lt is formed of two equal rules called legs ; these legs are moveable about the centre of a joint,... | |
| 1823
...sector when open. The real inventor of this valuable instrument ¡ - unknown •, yet of so much UK rit **has the invention appeared, that it was claimed by Galileo, and disputed by nations.** The sector is founded on the fourth proposition of ••the sixth book of Euclid ; where it is demonstrated,... | |
| Robert Gibson, James Ryan - 1839 - 412 sider
...uniting, as it were, angles and parallel lines, din rule and the compass, which are the only means thai **geometry makes use of for measuring, whether in speculation...sector of a circle. It is formed of two equal rules** called legs ; these legs are moveable about the centre of a joint, and will, consequently, by their... | |
| John Quested - 1848
...mathematical instrument containing various scales, and movable on a pivot, so as to fit all radii. **The real inventor of this valuable instrument is unknown;...it was claimed by Galileo, and disputed by nations.** For a minute description of it, see KENTISH'S " TREATISE ON A BOX OF INSTRUMENTS AND THE SLIDE RULE."... | |
| Henry S. Merrett - 1863 - 317 sider
...rule and the compasses, which are the only means used in geometry for measuring, whether in theory **or practice. The real inventor of this valuable instrument...sector of a circle. It is formed of two equal rules,** called legs. These legs are movable about the centre, С, of a joint, d ef, and will, consequently,... | |
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