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M2 Radiation Calculator (Front) Given the exposure rate (rads/hr) at a given time after a nuclear detonation the calculator can be used to predicts the exposure rate at any other time. It can also estimate the radiation exposure of personnel who are in the area at some time after the explosion.

M2 Radiation Calculator (Front) Given the exposure rate (rads/hr) at a given time after a nuclear detonation the calculator can be used to predicts the exposure rate at any other time. It can also estimate the radiation exposure of personnel who are in the area at some time after the explosion.

information design - old school inspiration: wheels!  - A way to show the time that passes in the process?

information design - old school inspiration: wheels! - A way to show the time that passes in the process?

US Army ABC-M1A1 ca 1950 Radiation exposure using rotating wheel calculator. Colors are nice; remind me of Mondrian!

Vintage Infodesign [75

US Army ABC-M1A1 ca 1950 Radiation exposure using rotating wheel calculator. Colors are nice; remind me of Mondrian!

Autonomous Machines: Windup Toys and Other Analog Devices Express Themselves through Art

Autonomous Machines: Windup Toys and Other Analog Devices Express Themselves through Art

The Slide Rule: A Computing Device That Put A Man On The Moon. "For generations of engineers, technicians and scientists, the slide rule was an essential part of their daily lives. Until, all of a sudden, it wasn't. In 1972 Hewlett-Packard came out with the first handheld electronic calculator. Practically overnight, the slide rule had become obsolete."

The Slide Rule: A Computing Device That Put A Man On The Moon

The Slide Rule: A Computing Device That Put A Man On The Moon. "For generations of engineers, technicians and scientists, the slide rule was an essential part of their daily lives. Until, all of a sudden, it wasn't. In 1972 Hewlett-Packard came out with the first handheld electronic calculator. Practically overnight, the slide rule had become obsolete."

Astrolabe

Astrolabe

Shoe shredders were selling like hot cakes during the Great Shoe Rebellion of ’91.

Shoe shredders were selling like hot cakes during the Great Shoe Rebellion of ’91.

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