0
When RADAR was first invented, in the 1930s, it didn't work very well because high directional accuracy required either a gigantic antenna or very short wave-lengths. Vacuum tubes had great difficulty in producing wavelengths below about 1.5 meters. In 1940 two men named Randall and Boot, working at Birmingham University in England, invented a device called a Resonant Anode Cavity Magnetron which could generate wavelengths about a thousand times shorter. Now called just a magnetron, this transformed RADAR; it has also transformed cooking, because there is at least one in almost every kitchen, inside the microwave oven.
Wiki User
∙ 15y ago
Add your answer:
Earn +20 pts
Massachusetts Bay produced two spin-off colonies?
The Massachusetts Bay Colony produced three spin-off colonies: Connecticut, Rhode Island, and New Hampshire.
What is the name of the new spin off company from Valero?
NuStar Energy LP in San Antonio, TX
What was the address of the Bunkers on All In The Family?
704 Hauser One of the many spin-off series from "All in the Family" was titled "704 Hauser".
What were the characteristics of the south that contributed to its military strength in the early part of the civil war?
Most were poor boys fresh off the farm.
What was the sailing technology of 1519?
It was harder because they didn't have the technology we have today. they didn't have the supplies we have and they also didn't have a good built boat. They also thought the world was flat and they could fall off if they reached the end.
What is Spin off industries of the technology?
What is Spin off industries of the technology? What is Spin off industries of the technology?
Is a spin off a type of technology or cycling competition?
A spin-off is something that is derived from something else.
How do microwaves give off radiation?
Microwaves do not 'give off' radiation as such. Microwaves are radiation.
What space technology spin-off might be used at school?
spaggetti and candy can be a spin-off that can be used in school. and yes i am a baddass for helping you with your homework... your welcome XD
What is the examples of spin-off?
On television ... Frasier was a spin-off from Cheers Joey was a spin-off from Friends
TV's Knots Landing was a spin off of Dynasty?
False - It was a spin off of Dallas
Is Spin-off or spinoff the correct spelling?
spin-off
Do stars give off microwaves?
yes
What are the environmental benefits of using microwaves?
Microwaves can destroy polluting gases given off by power plants.
The TV show Tabitha was a spin-off of what other show?
it was a spin off from "Bewitched"
Boston Legal is a spin-off of Law and Order?
False - It is a spin-off of The Practice
Laverne and Shirley was a spin off from?
A spin- off of Happy Days,
