This media is in the public domain (free of copyright restrictions). You can copy, modify, and distribute this work without contacting the Smithsonian. For more information, visit the Smithsonian's ...
It might look like a quirky plastic model of an ancient Egyptian pyramid, but this model is in fact a 3D 'acoustic cloak', created using just a few perforated sheets of plastic. The device reroutes ...
This microfilm collection consists of annual exhibition catalogs from the Pyramid Club, an African American social club. The exhibition catalogs date from 1943 to 1945 and 1955. 35mm microfilm reel ...
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