Wood stoves. (They burned wood or coal to get hot).
NO! there wasnt much of elecrticity yet.
it used 1800 vacuum tubes
microwaves are used in radar
Microwaves can be used to send signals or to cook food.
To warm-up foods !
It is used for lights,TV,computers,the frige,ovens,microwaves,and electric outlets.The Answer from Joseph
microwaves are used to warm or cook something. the electricity powers the microwave so it will create heat. First use was by the military -- RADAR
yes it can because microwaves are used for many thinks(ex) tv telephone and computer
Yes! They used them into the 1900s!
Caucasian people
Microwaves.
Microwaves.