2006-10-15 22:05:10 · 14 answers · asked by angelz 1 in Education & Reference ➔ Homework Help
When air becomes hot it expands and so the density decreases.and hot air goes up.just the opposite thing happens when air is cooled..It contracts,its density is increased and it comes down.So when the freezer cools down the top layer of the air in the refrigerator,the cold air comes down slowly.This process continues and the whole of the refrigerator remains cool.For the same reason,you must fix the AC higher than your bed level or body level to really enjoy the coolness.
2006-10-15 22:14:17 · answer #1 · answered by alpha 7 · 0⤊ 0⤋
The freezer is placed at the top of the refrigerator so that it would be easy for us to get the food. The advantage of it is that it is easier to handle than the new refrigerators with the freezers located below.
2006-10-16 07:05:25 · answer #2 · answered by meryl kei 1 · 0⤊ 0⤋
Hello. - Good question. My freezer is on the half side of the refrigerator. I am curious to know what year is yours..lol
What I found is the history, but maybe from the history paragraph you can Google further:
The first method of refrigeration (cooling air by the evaporation of liquids in a vacuum) was invented in 1748 by William Cullen of the University of Glasgow, Scotland; Cullen did not apply his discovery to any practical purposes. Michael Farady, an English physicist liquefied ammonia to cause cooling (in the 1800's). Faraday's idea would eventually lead to the development of compressors, which compress gas to liquid form.
The American inventor Oliver Evans designed the first refrigeration machine in 1805. In 1844, John Gorrie, an American doctor from Florida made a device based on Evans' invention that would make ice in order to cool the air for yellow fever patients.
The first electric refrigerator was invented in 1803 by Thomas Moore. The first commercial refrigerator designed to keep food cold was sold in 1911 (by the General Electric Company) and in 1913 (invented by Fred W. Wolf of Fort Wayne, Indiana, USA); these model consisted of a unit that was mounted on top of an ice box.
A self-contained refrigerator (with a compressor on the bottom of the cabinet) was invented by Alfred Mellowes in 1915. Mellowes produced this refrigerator commercially (each unit was hand made), but was bought out by W.C. Durant (the president of General Motors) in 1918, who started the Frigidaire Company in order to mass-produce refrigerators in the USA.
Have a nice day. :)
2006-10-16 05:14:02 · answer #3 · answered by Anonymous · 0⤊ 1⤋
Refrigerator absorbs the heat from the air, worm Air is lighter therefore it will tend to go up into the freezer where the heat exchange takes place, the Air is cooled and therefore heavier, and goes down, this will cause better temp. distribution
2006-10-16 05:19:22 · answer #4 · answered by Anas 3 · 0⤊ 1⤋
not all freezer are on top there are a lot of refrigeratior with freezer at the bottom or in the middle
2006-10-16 05:13:35 · answer #5 · answered by ME 4 · 0⤊ 1⤋
you now can buy a fridge with a freezer on the bottom
2006-10-16 05:06:59 · answer #6 · answered by kim 4 · 1⤊ 0⤋
It took an awfully long time, but they do make them with the freezer below.
2006-10-16 05:07:37 · answer #7 · answered by vinny_the_hack 5 · 1⤊ 1⤋
my freezer is underneath the fridge
2006-10-16 09:11:11 · answer #8 · answered by Bex 1 · 0⤊ 0⤋
looooool haha , look if u extend ur hand u will toutch the refrigirator, and if u move it above a little u can open the fridge, if the refrigirator was under the fridge u whould have to croutch to reach 1 of them :D
2006-10-16 05:08:16 · answer #9 · answered by H@ckers 1 · 0⤊ 2⤋
Cause the bottom is saved for the vegetables so that they are closer to the ground where they naturally are. You have to keep those veggies happy
2006-10-16 05:07:29 · answer #10 · answered by madmadritchie 1 · 0⤊ 3⤋