Science Art: Check Valve, 1882.
A valve to prevent backflow… so the river doesn’t wind up in the reservoir, or the effluent in the shower pipes. From A practical treatise […]
A valve to prevent backflow… so the river doesn’t wind up in the reservoir, or the effluent in the shower pipes. From A practical treatise […]
Calcite refracts light in a linear way – it’s why (as previous songs have discussed) it may have been used as a navigational tool by […]
This glimpse into a prehistoric world (which we now know should probably have at least a few more feathers in it) is part of the […]
This is a nebula inside a nebula, caused by two stars pulling each other apart, as photographed by the Hubble Space Telescope. From the description […]
This is a solar-powered generator. A funnel with sides angled at 90 degrees is pointed at the sun to catch its radiation, and those rays […]
There’s a killer on the road indeed. The WPA released this poster to discourage drunk driving, or at least running your hotrod on moonshine. Public […]
This tasty-looking fruit is from a medical text – Medical Botany: or, Illustrations and Descriptions of the Medicinal Plants of the London, Edinburgh, and Dublin […]
Two cats at dusk, growling in the snow. The nights have been long, but they’re growing shorter. May you survive your own lonely wilderness and […]
This is an illustration from a 1937 edition of Natural History magazine, an article called “Chinese Design.” This is a “Disk of Heaven,” or bi, […]
This is the cover of a report on the Teledyne Ryan Aeronautical “Navy Mini-Drone (STARS),” otherwise known as the Manta Ray. It was a fiberglass […]
This is a… well, it’s pretty self-explanatory, really. Unlike most of the images collected here, it’s got its own description printed right on it. These […]
This is not a movie prop, but a working prototype of the Avrocar, a disc-shaped flying machine that graced the skies between 1959 and 1961. […]
This is an ad from the April 1966 “Tools and Test Measurement Issue” of Popular Electronics, which I found on archive.org. Lovely design on this […]
An illustration showing how noticeable an eye actually is, from the text The Vertebrate Eye and Its Adaptive Radiation, which looks at eyes, eyes everywhere, […]
How high? This device will tell you. It’s from The great Centennial exhibition critically described and illustrated, by Phillip T. Sandhurst, which you can read […]
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