Project Gutenberg #57532
Passages from the Life of a Philosopher
Charles Babbage
1864Babbage's autobiography and account of his calculating engines, prepared chapter by chapter from Project Gutenberg HTML.
Project Gutenberg #57532 Public domain in the United States Cover source Local typographic cover created for MojiMori from public-domain source metadata
Section 63 of 87
CHAPTER XXXIV. THE AUTHOR’S FURTHER CONTRIBUTIONS TO HUMAN KNOWLEDGE.
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Glaciers — Uniform Postage — Weight of the Bristol Bags — Parcel Post — Plan for transmitting Letters along Aërial Wires — Cost of Verification is part of Price — Sir Rowland Hill — Submarine Navigation — Difference Engine — Analytical Engine — Cause of Magnetic and Electric Rotations — Mechanical Notation — Occulting Lights — Semi-occultation may determine Distances — Distinction of Lighthouses numerically — Application from the United States — Proposed Voyage — Loss of the Ship and Mr. Reid — Congress of Naval Officers at Brussels in 1853 — My Portable Occulting Light exhibited — Night Signals — Sun Signals — Solar Occulting Lights — Afterwards used at Sebastopol — Numerical Signals applicable to all Dictionaries — Zenith Light Signals — Telegraph for Ships on Shore — Greenwich Time Signals — Theory of Isothermal Surfaces to account for the Geological Facts of the successive Uprising and Depression of various parts of the Earth’s Surface — Games of Skill — Tit-tat-to — Exhibitions — Problem of the Three Magnetic Bodies.