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slide rules made of wood and plastic
Compilation of several slide rules, analog calculators, and measurement devices
Vintage logarithm ruler close up isolated on a white background
Close up detail of a log/log slide rule isolated on a black background.
Slide rule, close up
Macro image of old scratched slide rule - an old mathematical tool for calculations from before the era of electronic calculators.
old vintage slide rule on white, isolated
Macro close up of a geometry set protractor
Logarithmic ruler on white background. Stationery for engineers and students
plastic vernier caliper
slide rule on a green background
Fifty. Tailor's wooden meter ruler on black background.
group of old slide rule slipstick analogue computer for mathematical calcululs, close view
Carpenter's old ruler
Plastic instrument for measuring linear dimensions in approximation
Ruler
Logarithmic ruler on black background. Stationery for engineers and students
Father showing his son how tall is he
A Vintage Nostalgic Mathematics Calculating Slide Rule.
View of the wooden ruler and the millimeter and centimeter scales with red and black numbers. A measuring instrument for craftsmen and do-it-yourselfers
ancient wooden ruler on white, isolated
This is a rather old and well-used slide rule, a simple classic version made of mahogany. I have other views of this in my portfolio.
image of a measuring stick
Old and obsolete instrument for math calculus. Anyway it is a beautiful instrument.
Logarithmic ruler on black background. Stationery for engineers and students
close-up of bi-colored slide rule scales.
Chinese feng shui compass.Feng shui compass (Luopan).antique chinese compass for feng shui
Slide Rule background
A variety of vintage wooden folding rulers arranged, full frame
This plastic student slide rule from the 1960s is a remarkably adaptable mathematical instrument whose ability to perform calculations such as multiplication and division depends upon the use of logarithmic scales, where larger numbers are closer together than smaller ones. The centre section of the ruler slides to the left and right. In this close up photograph, the sliding cursor is placed across the 5, while (out of shot) the middle section has been moved so that the left hand edge lines up with the 2. The result of the multiplication of 2 by 5 is then read off above the number 5.
Free Images: "bestof:Scale Sector - MIT Slide Rule Collection - DSC03579.JPG en MIT Slide Rule Collection MIT Museum Cambridge Massachusetts USA The museum permitted photography"
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