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Period: to
technology timespan
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Construction
A 1940's car assembly line -
transportation
brand new car from 1949 -
energy and power
coal a common type of energy -
agriculture
a cow -
construction
the hammerhead crane -
communication
a 1940's telephone -
Medical technology
A vicks sign -
Communication
A modern cell phone for the time -
Construction
a construction vehicle -
transportation
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manufacturing
The cad-cam system was developed in 1999 -
energy and power
a wind turbine -
medical technology
a hand transplant -
agriculture
a soil penetrometer form measuring soil compaction
