Category: History - Other
Time and Time-Tellers
Produced by Chris Curnow, Mark Young and the Online Distributed Proofreading Team at http://www.pgdp.net (This file was produced from images generously made available by The Internet Archive)
Category: History - Other
Produced by Chris Curnow, Mark Young and the Online Distributed Proofreading Team at http://www.pgdp.net (This file was produced from images generously made available by The Internet Archive)
The plane of every dial represents the plane of some great circle on the earth, and the _Gnomon_ the earth's axis; the vertex of a right _Gnomon_, the centre of the earth or vis...
9. Part 9The utility of a Public Clock is considerably enhanced by its being provided with a dial marking the time in the simplest and most unmistakeable lines, so that it may readily be...
4. Part 4We now come to the time when the use of jewels was first invented and applied; and as these, by being so hard and uninfluenced by friction as to allow the pivots to play without...
8. Part 8In the first place, it is necessary to say that Turret Clocks are not merely house clocks upon an enlarged scale, differing from the latter merely in size and weight, but that t...
5. Part 5From the time when the first Nuremberg egg-watch was produced, there has always been noticeable an endeavour to make pocket time-pieces more and more small and portable so far a...
6. Part 6The CHRONOGRAPH is undoubtedly the most perfect instrument yet invented for marking the exact time occupied by certain rapid movements or events or performances,--and is therefo...
7. Part 7To prevent the straining of the spring, a little contrivance called the stop-work is introduced. It consists of a piece of steel somewhat in the shape of a bayonet, which is so...
3. Part 3'Peter Hele, a clockmaker, was everywhere esteemed a great artist on account of the pocket-clocks, which, soon after the year 1500, he first made in Nuremberg, with small wheels...
1. Part 1Produced by Chris Curnow, Mark Young and the Online Distributed Proofreading Team at http://www.pgdp.net (This file was produced from images generously made available by The Int...
10. Part 10(see illustration on following page) are chiefly used now to mark the solar meridian or noon. Those which indicate other hours have a gnomon with its edge parallel to the earth'...