Technology

https://www.si.edu/newsdesk/snapshot/taking-jet-pack Three-quarter side view of Rocket Belt, Bell No. 2 [A19730264000] Three-quarter rear view of Rocket Belt, Bell No. 2 [A19730264000] Three tanks mounted on a form-fitting strapped fibreglass and…

National Museum of American History Object DetailsFranz Schmidt & Haensch Spectrometer. 1981.0826.02. DescriptionThis is a solid and substantial instrument of iron and brass. The horizontal circle, 4.25 inches diameter, is…

National Museum of American HistoryObject Detailsinventor : Bell, Alexander Graham DescriptionOne of two telephones used by Alexander Graham Bell in a demonstration that took place between Boston and Salem, Massachusetts…