Mechanical calculators
The Antikythera Mechanism II math column
antikythera2-1
The Antikythera Mechanism I and
antikythera1-1
''Economy of Machinery and Manufactures'' babbage
Economics 3LL3 -- Babbage
Science Museum's exhibit on the Difference engine line babbage
Science Museum | Babbage | Introduction
Obituary of Charles Babbage in ''Monthly Notices of the Royal Astronomical Society'', '''32''' (1872) 101 harvard full
MNRAS..32 Page 1:101
''Astronomische Nachrichten'', '''3''' (1825) 169/170 harvard full
1825AN......3..167. Page 169/170
''Astronomische Nachrichten'', '''2''' (1824) 407/408 harvard full
1824AN......2..407. Page 409/410
The Ninth Bridgewater Treatise science bridgewater
Babbage, Ninth Bridgewater Treatise
Archive for the History of Economic Thought
McMaster University Archive for the History of Economic Thought
Comptometers members
Comptometer - Comptometers - Biography of a Machine
Biographical information about Curt Herzstark and the Curta calculator
Curt Herzstark and his Pocket Calculator CURTA
Curta Calculators at Gilai Collectibles scripts calculating
Gilai Collectibles: Calculating Instruments
Antiques of Science and Technology. Includes a picture of a CURTA Model I
The Amazing Curta by Bruce Flamm
The Amazing Curta
Curta Handhelds from the Museum of HP Calculators by Dave Hicks
Curta site by Greg Saville
Curta Calculators
How to Calculate with a Curta by Nicholas Bodley
Nicholas Bodley Notes - Curta
Curta Operating Manual. HTML coding by Andries de Man
CURTA Manual
Curta.Org, Your Complete Curta Calculator Site includes a Wiki
Curta.Org, Your Complete Curta Calculator Site
Curta calculator fansite
The CURTA Calculator Page
A Shockwave-enabled simulation of the Curta
Curta-Simulator
The Curious History of the First Pocket Calculator by Cliff Stoll, Scientific American, January 2004
Science & Technology at Scientific American.com: The Curious History of the First Pocket Calculator -- [ INVENTION ]
Meccano Difference Engine meccano
Robinson's Difference Engine #1
The London Science Museum exhibition on the Difference Engine line babbage
Science Museum | Babbage | Introduction
International Slide Rule Group on Yahoo! groups yahoo group
sliderule : The International Slide Rule Group
Large PDF scan of ''Rabdologiæ'' archive
Java implementation of Napier bones in various number systems at cut-the-knot
Napier Bones in Various Bases
A more thorough discussion of the Pascaline's operation macs calculators pascal
Pascal's Adder - About Pascaline
How it works lecture
History of Computing Science: The First Mechanical Calculator
Pascal's calculator paris
Go crack a www.froola.com! Mechanical_calculators
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Antikythera mechanism , Charles Babbage , Comptometer , Curta calculator , Curt Herzstark , Difference engine , E6B , Napier's bones , Pascal's calculator , .
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