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.
Mercury is not used in microwaves. Microwaves use magnetrons to generate microwave radiation, which heats food by causing water molecules to vibrate. Mercury is a toxic element and is not safe for use in consumer products like microwaves.
Yes! They used them into the 1900s!
It is used for lights,TV,computers,the frige,ovens,microwaves,and electric outlets.The Answer from Joseph
To warm-up foods !
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
Caucasian people
Microwaves are commonly used for cooking food quickly and efficiently. They are also used in communication technology, such as in radar systems and satellite transmissions.