Browsing named entities in Knight's Mechanical Encyclopedia (ed. Knight). You can also browse the collection for 1647 AD or search for 1647 AD in all documents.

Your search returned 3 results in 2 document sections:

Knight's Mechanical Encyclopedia (ed. Knight), B. (search)
that the moving agent was not a nameless horror of a vacuum, — a term which covered the ignorance of the real cause, — but was the pressure of the air upon the liquid; and that this pressure was equal to about 15 pounds to the square inch. In 1647, Pascal showed practically that the hight of the mercurial column was affected by carrying the inverted tube to the top of an eminence. He made the experiment on a church-steeple in Paris. To test the matter more completely, he wrote to his brot One with a barbed shank. Bay′o-net. A piercing weapon, fixable on the muzzle-end of a fire-arm. They were originally made at Bayonne, in France, in the latter half of the seventeenth century, and used by that nation in the Netherlands in 1647. The weapon was introduced into the English army in 1672, and used at Killiecrankie, in Perthshire, where the forces of William of Orange, commanded by Mackay, were defeated by those of James II., under the command of Graham, of Claverhouse, 1689<
Knight's Mechanical Encyclopedia (ed. Knight), G. (search)
ow with a hopper for the seed, and three spouts, twenty-eight inches long, by which the grain reaches the ground; it thus drills three rows at once. It appears from a communication to the British Board of Agriculture, that a rude sort of grain-drill has been in use in India from time immemorial. It is a drilling hopper attached to a plow so as to deposit the seed in the furrow. The first notice of a European graindrill is one invented by a German, and presented to the court of Spain in 1647. The same drill attracted the attention of the Earl of Sandwich, who sent one to England. Evelyn, who died in 1706, speaks of it as a machine of great merit, and the invention of a Spaniard, Don Joseph de Lescatello. Worlidge, in his Husbandry, published 1669, also recommends it. It was fastened to the tail of a plow, and dropped the seed in the furrow. It was regarded as a curiosity merely, until a man appeared who was able to appreciate it. The system of drill husbandry of Britain