His ideas and experiments on the nature of minerals and other substances are voluminously set forth in his Physica Subterranea (Frankfort, 1669); an edition of this, published at Leipzig in 1703, contains two supplements (Experimentum chymicum novum and Demonstratio Philosophica), proving the truth and possibility of transmuting metals, Experimentum novum ac curiosum de minera arenaria perpetua, the paper on timepieces already mentioned and also Specimen Becherianum, a summary of his doctrines by Stahl, who in the preface acknowledges indebtedness to him in the words Becheriana sunt quae profero. [Please select]
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There are three departments of architecture: the art of building, the making of timepieces, and the construction of machinery. [Please select]
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This was very unreasonable, for he always found that the two timepieces told the truth; at least, that they agreed with each other. [Please select]
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_Springs_ occupy much less room than weights, and are indispensable for portable timepieces. [Please select]
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How many hours they slept they could not tell, for there were no timepieces. [Please select]
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Of these I have selected what I considered most useful and necessary, and have thought it best to speak in the preceding book about timepieces, and in this about the methods of raising water. [Please select]
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CLOCKS AND WATCHES:--A short history of timepieces--The construction of timepieces--The driving power--The escapement--Compensating pendulums--The spring balance--The cylinder escapement--The lever escapement--Compensated balance-wheels--Keyless winding mechanism for watches--The hour hand train. [Please select]
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