Written: 1915
Source: Lenin’s Collected Works, 4th Edition, Moscow, 1976,
Volume 38, p. 333
Publisher: Progress Publishers
First Published: 1930 in Lenin Miscellany XII.
Published according to the manuscript
Translated: Clemence Dutt
Edited: Stewart Smith
Original Transcription & Markup: K. Goins (2008)
Public Domain: Lenin Internet Archive (2008). You may freely copy, distribute, display and
perform this work; as well as make derivative and commercial works.
Please credit “Marxists Internet Archive” as your source.
The excerpts from Ludwig Darmstaedter’s book “Handbuch zur Geschichte der Naturwissenschaften und der Technik,” Berlin, 1908 (Ludwig Darmstaedter, Handbook on the History of the Natural Sciences and Technique, Berlin, 1908) were entered in a notebook directly preceding the conspectus of G. Noël’s Hegel’s Logic.
| 1676: |
Olaf Römer (from the eclipse of Jupiter): 40,000 geographical miles (less than.... (less than.... |
300,000) km. per sec. 298,000 km.) |
| 1849: |
Fizeau (toothed wheel and mirror): 42,219 geo- graphical miles . . . . . . . . . . . . |
= 313,000 km. per sec. |
| 1854: |
Foucault (2 revolving mirrors, etc.): 40,160 geo- graphical miles . . . . . . . . . . . . |
= 298,000 ” ” ” |
| 1874: |
Alfred Cornu (à la Fizeau) . . . . . . . . . . . . . . . . . . |
300,400 ” ” ” 300,300 ” ” ” |
| 1902: | Perrotin (idem) . . . . . . . . . . . . | 299,900 (±80 m.) ” |
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