A: ### Quick Answer

**American Clarence Birdseye invented the quick-freezing process for preserving food.** He got the idea when he saw how the native people in the Arctic preserved meat and fresh fish in barrels of sea water that quickly froze after being exposed to very cold temperature.

Birdseye developed his process in 1923, using an electric fan, brine and ice. He later perfected a manufacturing system that packed fresh food into cardboard boxes lined with wax and flash-froze the food using high pressure. The first quick-frozen products went on sale in Salem Mass., in 1930. One year before that, Birdseye sold his patents and trademarks for $22 million.

Learn more about InventionsSources:

- Q:
## Who invented algebra?

A:No single person invented algebra. The roots of algebra extend to the ancient Babylonians, who first developed mathematical techniques to solve problems using algorithms. Later work by Greek, Persian and Indian mathematicians further extended these techniques and laid the foundations for modern algebra.

Full Answer >Filed Under: - Q:
## Who invented badminton?

A:Badminton was not invented by one specific person. The sport has its roots in ancient games, such as battledore and shuttlecock. The modern sport developed in India, where it was known as "poon." British soldiers stationed there brought it back to England in the mid-19th century.

Full Answer >Filed Under: - Q:
## Who invented zero?

A:

Full Answer >**Brahmagupta, a Hindu mathematician and astronomer, first used a dot underneath other numbers to represent the number zero in 628 A.D.**He was the first to develop additive and subtractive operations that use zero.Filed Under: - Q:
## When was algebra invented?

A:Algebra, in its earliest form, was first used by the Babylonians as early as 1700 B.C. It is possible that algebra was used before this time, but historical records are incomplete. However, the algebra used by early civilizations was much more rudimentary than the algebra currently in use today.

Full Answer >Filed Under: