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What shadows would be if there were no bodies, such natural motion in the upper regions will become, without levity. For, of a truth, it would be mon… - Jean Rey
" "What shadows would be if there were no bodies, such natural motion in the upper regions will become, without levity. For, of a truth, it would be monstrous, to see natural effects without a natural cause. That is said to move naturally whose cause of motion is in itself.
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About Jean Rey
John Rey (1583–1645) (or, in French) Jean Rey, was a physician of , France who in 1630 published a tract on , or of metals, after being notified by Brun, an apothecary of Bergerac, France, of Brun's experiments (as early as 1629) on the calcination of tin. Brun had melted 2 pounds six ounces of tin, and after 6 hours the resulting calx weighed seven ounces more than the original tin. More than one hundred and forty years before Antoine Lavoisier, John Rey recognized that in the calcination of lead or tin, part of the air provided an increase in mass to the calcined metal oxide. His work was eclipsed first by the phlogiston theory and then later, by Lavoisier's discoveries disproving the existence of phlogiston. Lavoisier's oxygen theory confirmed Rey's earlier report, of which Lavoisier claimed he was unaware. After the presentation of Lavoisier's 1775 memoir at the Académie des sciences, (1725-1798) wrote a letter to Abbé , director of the journal Observations sur la Physique, sur l'Histoire naturelle and sur les Arts, to ask him to publish an update notice, recognizing the priority Rey's work.
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Additional quotes by Jean Rey
For this matter, every where filling the space closed in by the curvature of heaven, is continually pushed, by its own weight, towards the centre of the world. Earth, it is true, as the heaviest, readily occupies this situation, and forcing its fellow-elements to retire, causes water, the second in weight, to be also second in place; so that the air, driven from the lowest, as well as the second station, holds the third place, leaving the highest region to be occupied by fire, the lightest of all.
This opinion is defective, to say no worse of it, in many respects. First, in attributing life to lead. Secondly, in supposing that the presence of the celestial heat makes it light, and its absence heavy. Thirdly, because it assigns the same reason for the increased weight of lead by calcination, and of animals by death. There is nothing of the kind. For as to life, how can lead possess it, since it is a homogeneous body, without difference of parts, without organs, and without any vital effect or action? If it move downwards, so does ceruse, which is only its corpse; if it be cooling (rafraischit), so is ceruse. Then how could it preserve this life, under a million of forms, that it may be made to assume and to cast off, yet always continuing to be lead? How, in the furnace (which would be a much greater wonder), where it may be kept in fusion a day, a month, or a whole year? It must have a very tenacious soul to undergo so much without being dislodged!
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