Are microwaves helpful

Answer 1

Yes, microwaves are a type of radio that has many uses:

1. microwaves were first used by the Allies in World War 2 in RADAR systems that helped intercept many Nazi and Japanese aircraft (including V-1 "cruise missiles")
2. microwaves were used in telephone company long distance calls from the late 1940s into the 1990s
3. microwaves are used in WiFi and Bluetooth interfaces on computers
4. microwaves are used by cellphones to connect to cell towers
5. microwaves are used for cooking purposes by heating the water in the food, making steam
6. microwaves from stars and other objects are used in radio astronomy to study the universe and see things that ordinary light based telescopes cannot
7. etc.