Elastic Quotes - page 2
Is not this Medium [æther] much rarer within the dense Bodies of the Sun, Stars, Planets, and Comets, than in the empty celestial Spaces between them? And in passing from them to great distances, doth it not grow denser and denser perpetually, and thereby cause the gravity of those great Bodies towards one another, and of their parts towards the Bodies; every Body endeavouring to go from the denser parts of the Medium towards the rarer? ...And though this Increase of density may at great distances be exceeding stow, yet if the elastick force of this Medium be exceeding great, it may suffice to impel Bodies from the denser parts of the Medium towards the rarer, with all that power which we call Gravity. And that the elastic force of this Medium is exceeding great, may be gather'd from the swiftness of its Vibrations.
Isaac Newton
By another way, therefore, I endeavoured to attain the same end; and since it is a property of water that a small quantity of it, converted into steam by the force of heat, has an elastic force like that of the air, but, when cold supervenes, is again resolved into water, so that no trace of the said elastic force remains; I felt confident that machines might be constructed wherein water, by means of no very intense heat, and at small cost, might produce that perfect vacuum which had failed to be obtained by aid of gunpowder. But of the various constructions which can be contrived for this purpose, the following seemed to me to be the most suitable.
Denis Papin
Nimbly they seized and secreted their prey,
Alive and wriggling in the elastic net,
Which Nature hung beneath their grasping beaks;
Till, swoln with captures, the unwieldy burden
Clogg'd their slow flight, as heavily to land,
These mighty hunters of the deep return'd.
There on the cragged cliffs they perch'd at ease,
Gorging their hapless victims one by one;
Then full and weary, side by side, they slept,
Till evening roused them to the chase again.
James Montgomery