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Documents filtered by: Period="Colonial" AND Correspondent="Franklin, Benjamin"
Results 531-540 of 3,658 sorted by date (ascending)
Printed in Benjamin Franklin, Experiments and Observations on Electricity (London, 1769), pp. 280–1. If I remember right, the Royal Society made one experiment to discover the velocity of the electric fire, by a wire of about four miles in length, supported by silk, and by turning it forwards and backwards in a field, so that the beginning and end of the wire were at only the distance of two...
Printed in Benjamin Franklin, Experiments and Observations on Electricity (London, 1769), pp. 282–3. Suppose a tube of any length open at both ends, and containing a moveable wire of just the same length, that fills its bore. If I attempt to introduce the end of another wire into the same tube, it must be done by pushing forward the wire it already contains; and the instant I press and move...
Draft: New York Academy of Medicine With Regard to our fathers Estate I can only so far Inform you that the houshold Stuf as sold at Vendue amounted to a Little more than [ illegible ] old Tenor. The house and Land was apprisd at £200. This letter answered BF ’s inquiry of January 2; it was drafted in the margin of BF ’s letter, Dec. 8, 1752. Torn in MS , but the figure was probably £70....
Transcript: Vassar B. Carlton, Titusville, Florida (1955) Yours of the 12th past gave me a great deal of Pleasure, as it informed me that you are better and have reason to think the Stone either lessen’d or made smoother. I pray God to continue it to a perfect Cure. When you have a little Leisure please to inform me how our Fathers Estate turns out as I hear every thing is now sold. Who bought...
Draft: Historical Society of Pennsylvania When I left Philadelphia and every Friend and Acquaintance that was dear to me it was with a View and, as I then thought, with a study [ sic ] Resolution to lead a quiet and private Life without even so much as thinking of publick Affairs, other than paying Taxes and Fines if any should be imposed upon me for not appearing if at any Time I should be...
ALS : American Philosophical Society Tho’ I am much engaged yett I cannot Lett Mesnard Sail without Acquainting you how Matters stand Here. and first for Business The Paduasoye is the best and I hope will please your Good Wife—it is well paper’d and is Packed in a Trunk By John Samuel who haveing other Silk Goods it was putt with his to have the Drawback. As there is three different Breadths...
Copies of letter and enclosure: New-York Historical Society The rare transits of Venus across the sun’s surface were among the most important astronomical occurrences in the eighteenth century because they offered astronomers opportunities to calculate the solar parallax—the angle subtended at the sun by the earth’s radius—and thus not only provided a basis for computing the actual distance...
ALS and AD : American Philosophical Society I send you inclosed a Short account of a Me[teor?]. You have on many accounts a Right to every new Th[ing?] in natural Phylosophy. I leave it to your [Resolu?]tion whether there be any Thing in my Notion of [ torn ] phenomena as I value your Thoughts upon every Thing. And tho’ ever so Short, Yet Sir Your very much ob[liged] and humble [Servant]...
Draft: American Philosophical Society I ought to have wrote to you long since, in Answer to yours of Oct. 16. concerning the Water Spout: But Business partly, and partly a Desire of procuring further Information by Inquiry among my Seafaring Acquaintance, induc’d me to postpone Writing from time to time, till I am now almost asham’d to resume the Subject, not knowing but you may have forgot...
ALS : Massachusetts Historical Society The enclos’d is a Copy of a Letter and some Papers I received lately from a Friend, of which I have struck off Fifty Copies by the Press, to distribute among my ingenious Acquaintance in No. America, hoping some of them will make the Observations proposed. The Improvement of Geography and Astronomy is the common Concern of all polite Nations, and I trust...