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History Directory
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Site Listings
BUILDING BIG BUILDING BIG: A PBS miniseries on megastructures, hosted by David Macaulay Keywords: david macaulay , macauley , maccaulay , mccaulay , bridges , domes , skyscrapers www.pbs.org/wgbh/buildingbig/ History of Mechanical Calculators - Part I Covers the history of modern day adding devices from 1885 with the "Marconi Box" with rubber bands and wires to electrical motor driven machines of the 1940's. www.xnumber.com/xnumber/mechanical1.htm SOUTH WESTERN ELECTRICITY HISTORICAL SOCIETY Index Page for SWEHS Keywords: historical , electricity , south west , avon , devon , somerset , cornwall www.swehs.co.uk/ The Engines of Our Ingenuity: Main Page The Engines of Our Ingenuity, radio program Keywords: history www.uh.edu/engines/ Submit Site to the History Directory |