Metals are a better heat conductor than plastics.
radiators need to dissapate heat, and metal can dissapate heat quickly
Silver is a valuable metal, and is thus not used in radiators.
Aluminum
aluminum and copper
Radiators are made of a lot of metals with high melting points (example: Aluminum)
The metal fins on the outside of the hot water pipes radiate heat into the room.
Yes. Look for a metal recycling center or look up scrap metal in the phone book.. Depending on your location in the world, pricing varies. In the U.S. you can get upwards of $1.30 per lb for radiators. To see current pricing of scrap radiator and auto parts go to http://www.scrapmetalpricesandauctions.com
cars don't have plastic radiators, if they do the plastic would probably melt, and the compound of metal cools and heats quickly which is useful in cooling water.
Radiators produce heat.
Radiators were invented in 1855
no
The Radiators from Space was created in 1977.