ShizukoMcgurl ShizukoMcgurl

27-05-2015
History

Answered

Which of the following things were invented or first occurred in the 1950s? first heart transplant chicken pox vaccine microwave ovens first personal computer use of bar codes creation of the laser

Answer :

17-03-2017

The microwave oven, barcode, and laser. I hope that helps! :)

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ablazeneed ablazeneed

07-03-2019

The correct answer is "Microwave Ovens".

The commercial Microwave Oven was invented by American engineer Percy Spencer during the immediate years after the Second World War. Based on radar technology, he introduced the first microwave oven concept named "Radarange" in 1946. Afterward, the American company named "Raytheon" would license its patents in 1955, laying the path to further improvements and mass production of the products in the next decade.

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please help me on all the questions thanks !!!!!!!!!!!!!!!!!!