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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.
An ancient Chinese scroll unrolled.
Compilation of several slide rules, analog calculators, and measurement devices
Close up detail of a log/log slide rule isolated on a black background.
Vintage logarithm ruler close up isolated on a white background
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
Young adult pianist starting the metronome
Punch card is a storage medium. Perforated cardboard, paper with holes to automate information, was used in the first old computers. Ukraine, Torez - CIRCA 1970.
Censorship concept: everything in the message is deleted except words that read \
Two hands holding a slide rule or slipstick
Spirit Level
Slide ruler vintage measuring instrument and calculator
Ruler
Group of wooden yard sticks and meter sticks with black background.
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
Logarithmic ruler on white background. Stationery for engineers and students
Young adult pianist starting the metronome
A Vintage Nostalgic Mathematics Calculating Slide Rule.
Macro close up of a geometry set protractor
old slide rule slipstick analogue computer for mathematical calcululs, top view
Carpenter's old ruler
Plastic instrument for measuring linear dimensions in approximation
Safety deposit boxes
Logarithmic ruler on black background. Stationery for engineers and students
A studio shot of a mechanical metronome.
ancient wooden ruler on white, isolated
Ancient paper book.
Tachograph. Driver time tracking. Fixing the movement of the car. Cargo transportation with driving according to the schedule. Time disk. Background from recorded analog tachograph disks.
LV Medical - Equipment in an Emergency room. Blood pressure, monitors, weight scale, empty bed and statistics on monitors all help tell the story of an ER visit.
Free Images: "bestof:Poper Musical Slide Rule - MIT Slide Rule Collection - DSC03651.JPG en MIT Slide Rule Collection MIT Museum Cambridge Massachusetts USA The museum permitted"
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