[QE001A352A], Letter from Francis Robbins Upton to Thomas Alva Edison, October 1879

https://edisondigital.rutgers.edu/document/QE001A352A

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Title

[QE001A352A], Letter from Francis Robbins Upton to Thomas Alva Edison, October 1879

Editor's Notes

Regarding Weston's letter to Sci Am. The statement he quotes, that dynamo delivers 9/10 of energy to outside, has been practically proven to be true. Dynamo is like a battery. Offers mathematical proofs.

Date

1879-10-00

Decade

1870-1879

Type

Folder/Volume ID

QE001-F

Microfilm ID

115:840

Document ID

QE001A352A

Publisher

Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
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