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353 BROADWAY acid action alternating currents apparatus appeared arc light attracted Bacon battery body cell charcoal charged circuit coil conducting conductor connected copper decomposition diameter direction discovered discovery discs disruptive discharge distance dynamo earth effects elec electric current electric fluid electric motor electric science electrical book electrical fire electrified electro-magnetic Electromotive Force electrostatic induction energy ether waves excited experiments fact flame flash force Franklin friction galvanic glass gun-barrel heat hydrogen ideas inches induction invention iron kite lamp length Leyden jar lightning rod machine magnetic means ment metallic miles millimetres nature Non-electric observed Organon oscillations oxygen passing phenomena phial Philosophical plates platina pole potash produced Prof progress published received Royal Society rubbed scientific silver spark substances surface telegraph Thales tion touch tricity tube turpentine voltaic arc voltaic pile W. J. JOHNSTON COMPANY waves wire zinc
Page 88 - bodies it passes through. 9. Destroying animals. 10. Melting metals. 11. Firing inflammable substances. 12. Sulphureous smell. The electric fluid is attracted by points. We do not know whether this property is in lightning. But since they agree in all the particulars wherein we can already compare them, is it not probable they agree likewise in this? Let the experiment be made.
Page 88 - Nov. 7, 1749. Electrical fluid agrees with lightning in these particulars: 1. Giving light. 2. Colour of the light. 3. Crooked direction. 4. Swift motion. 5. Being conducted by metals. 6. Crack or Noise in exploding. 7. Subsisting in water or ice. 8. Bending bodies it passes through. 9. Destroying animals. 10. Melting metals. 11. Firing inflammable substances. 12. Sulphureous smell.
Page 64 - the existence of a principal discharge in one direction and then several reflex actions backward and forward each more feeble than the preceding, until equilibrium is attained. All the facts are shown to be in accordance with this hypothesis, and a ready explanation is afforded by it of a number of phenomena which are to be found in the older works
Page 33 - way of use to mankind; and the hot weather coming on, when electrical experiments are not so agreeable, it is proposed to put an end to them for this season, somewhat humorously, in a party of pleasure, on the Banks of the
Page 14 - Biographia Philosophica. " Being an account of the Lives, Writings, and Inventions, of the most eminent Philosophers and Mathematicians who have flourished from the Earliest Ages of the World to the present Time. By Benjamin Martin, London : Printed and sold by W. Owen, near Temple-Bar, and by the Author, at his House in Fleet-street.
Page 79 - As frequent mention is made in public papers from Europe of the success of the Philadelphia experiment for drawing the electric fire from clouds by means of pointed rods of iron erected on high buildings,
Page 33 - Chagrined a little that we have been hitherto able to produce nothing in the way of use to mankind; and the hot weather coming on, when electrical experiments are not so agreeable, it is proposed to put an end to them for this season, somewhat humorously, in a party of pleasure, on the Banks of the
Page 40 - rubber, or with the receiver, the communication with the common stock being cut off. We think that ingenious gentleman was deceived, when he imagined (in his Sequel), that the electrical fire came down the wire from the ceiling to the gun-barrel, thence to the sphere, and so electrized the machine and the
Page 38 - But now I need only mention some particulars not hinted in that piece, with our reasonings thereupon ; though perhaps the latter might well enough be spared." "1. A person standing on wax, and rubbing the tube, and another person on wax drawing the fire, they will both of them
Page 35 - in this manner eat uncommonly, tender. " In making these experiments, he found, that a man could, without great detriment, bear a much greater shock than he imagined : for he inadvertently received the stroke of two of these jars through his arms and body when they were very near fully charged. It seemed to him an