Experiments And Observations On Electricity on Superphysics

Experiment

Sun, 29 Dec 2024 00:00:00 +0000

EXPERIMENT I.

Place an electrised phial on wax; a small cork-ball suspended by a dry silk-thread held in your hand, and brought near to the wire, will first be attracted, and then repelled: when in this state of repellency, sink your hand, that the ball may be brought towards the bottom of {5}the bottle; it will there be instantly and strongly attracted, ’till it has parted with its fire.

Experiment

Sun, 29 Dec 2024 00:00:00 +0000

FROM Mr Benj. Franklin, in Philadelphia.

Mr Peter Collinson, F.R.S. London.

Sept. 1, 1747.

SIR,

We have observed new phenomena:

Experiment

Sun, 29 Dec 2024 00:00:00 +0000

Mr Peter Collinson, F.R.S. London.

Farther Experiments and Observations in ELECTRICITY.

SIR,

§ 1. There will be the same explosion and shock, if the electrified phial is held in one hand by the hook, and the coating touch’d with the other, as when held by the coating, and touch’d at the hook.

Hypothesis for explaining Thunder-Gusts

Sun, 29 Dec 2024 00:00:00 +0000

SIR,

§. 1. Non-electric bodies, that have electric fire thrown into them, will retain it ’till other non-electrics, that have less, approach; and then ’tis communicated by a snap, and becomes equally divided.

Preface

Sun, 29 Dec 2024 00:00:00 +0000

LETTER I.

FROM

Mr Benj. Franklin, in Philadelphia.

Mr Peter Collinson, F.R.S. London.

July 28, 1747.

SIR,

Here are my observations on M. Muschenbroek’s wonderful bottle.

Preface

Sun, 29 Dec 2024 00:00:00 +0000

Communicated in several Letters to Mr. P. Collinson, of London, F. R. S. LONDON:

Printed and sold by E. Cave, at St. John’s Gate. 1751. (Price 2s. 6d.)

The PREFACE

Mon, 01 Jan 0001 00:00:00 +0000

ADDITIONAL PAPERS. TO

Mr. Peter Collinson, F.R.S. London.

Philadelphia, July 29, 1750

SIR,

As you first put us on electrical experiments, by sending to our library company a tube, with directions how to use it; and as our honourable proprietary enabled us to carry those experiments to a greater height, by his generous present of a compleat electrical apparatus; ’tis fit that both should know from time to time what progress we make. It was in this view I wrote and sent you my former papers on this subject, desiring, that as I had not the honour of a direct correspondence with that bountiful benefactor to our library, they might be communicated to him through your hands. In the same view I write, and send you this additional paper. If it happens to bring you nothing new (which may well be, considering the number of ingenious men in Europe, continually engaged in the same researches) at least it will show, that the instruments, put into our hands, are not neglected; and, that if no valuable discoveries are made by us, whatever the cause may be, it is not want of industry and application.