Refined Tech: General Knowledge

Showing posts with label General Knowledge. Show all posts

Friday, 11 July 2014

Who invented the first Microwave oven?

Who invented the first Microwave oven?

Microwave oven was invented by Percy Spencer in 1945.

Microwave oven is used for heating the food items.

http://www.investors.com/image/LS1c_110105_345.jpg.cms

http://www.calbet.es/almacen_docs1/horno_4.jpg

Share the general knowledge with your friends

Who manufactured the first helicopter?

http://upload.wikimedia.org/wikipedia/commons/7/70/RAN_squirrel_helicopter_at_melb_GP_08.jpg

There are a number of people who worked on a manufacturing helicopter .In 1907 a French engineer, Paul Cornu built the first helicopter which could fly just one foot above the ground. After that, a Russian inventor, Igor Sikorsky invented a successful helicopter in 1942.