Radio's were used in the 1940's and were very popular!
The telephone was used, they had an old-fashioned TV... I don't know any other technology used back then.
landsat satellite people in mrs dorchs class
1940s, in Germany.
1940s
It is unknown who the first computer technician. However, it is reported that in the early 1940s, the first technicians were used for Hewlett-Packard and for early military computerized technology.
ZIP!
Dance therapy began as a profession in the 1940s with the work of Marian Chace
Cars and carriages.
M.C. Escher primarily used wove paper in the 1940s. This type of paper has a uniform surface and is commonly used for printmaking.
Penecilin
PBZs
what hair products were used in the 1940s for women
Yes, machine guns were used in WW2.