 | 1795 - 492 pages
...rays only when they ail u¡:oii a calorific medium ; they are the caufe of the production of heat, by uniting with the matter of fire, which is contained in the fubibnces that are heated : as the colliiion of Hint and ileel will inflame a magazine of gunpowder,... | |
 | William Nicholson - 1809 - 722 pages
...the sun's rays only when they act on a calorific medium: they are the cause of the production of heat by uniting with the matter of fire which is contained in the substances that are heated ; as the collision of the flint and steel will inflame a magazine of gunpowder, by putting all the... | |
 | Edward Augustus Kendall - Encyclopedias and dictionaries - 1811 - 476 pages
...sun's rays only when they act on a calorific medium : they are the cause of the production of heat by uniting with the matter of fire which is contained in the substances that are heated ; as the collision of the flint and steel will inflame a magazine of gua.powder, by putting all the... | |
 | James Smith - Industrial arts - 1815 - 684 pages
...that heat U produced by the sun's rays only when they act on a calorific medium ; they produce beat by uniting with the matter of fire which is contained in the substances that are heated. The collision of a flint and steel will inflame a magazine of gunpowder, by putting all the latent... | |
 | Edward Polehampton - 1815 - 592 pages
...sun's rays ouly when they act ou a calorific medium ; they are the cause of the production of heat, by uniting with the matter of fire, which is contained in the substances that are heated : as the collisoo of flint and steel will mllauie a magazine of gunpowder, by putting all the latent... | |
 | Edward Polehampton, John Mason Good - Natural history - 1818 - 590 pages
...sun's rays only when they act ou a calorific medium ; they are the cause of the production of heat, bj uniting with the matter of fire, which is contained in the substances that are heated : as the collison of flint and steel will inflame a magazine of gunpowder, by putting all the latent... | |
 | Science - 1821 - 452 pages
...during a central eclipse. Were Dr. H.'s assumption concerning the amount of atmospheric icfraction correct, his conclusion would not follow ; for the...too far behind the present state of Chemistry, and too little essential to ihe object which their author had in view, to deserve transcribing into the... | |
 | William Nicholson - Natural history - 1821 - 382 pages
...sun's rays only when they act on a calorific medium: they are the cause of the production of heat, by uniting with the matter of fire which is contained in the substances that are heated ; as the collision of the flint and steel will inflame a magazine of gunpowder, by putting all the... | |
 | Almanacs, English - 1822 - 440 pages
...Sun's rays only when they act in a calorific medium : they are the cause of the production of heat by uniting with the matter of fire which is contained in the substances that are heated. On the tops of very high mountains, where clouds seldom come to shelter them from the direct rays of... | |
 | James Mitchell - Mathematics - 1823 - 666 pages
...rays, only when they act on a caloritic medium ; they are only the cause of the production of heat, by uniting with the matter of fire, which is contained in the terrestrial atmosphere, or substances that are heated, as water poured upon lime is Uiec;tuse of the... | |
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This may be very substantially answered by many proofs drawn from natural philosophy, which show that heat is produced by the sun's rays only when they act on a calorific medium ; they are the cause of the production of heat, by uniting with the matter... 
