Non-stick pans are one of the most common kitchen utensils today. The pan is mainly used for cooking. Non-stick pans are made up of two components, the metal body and the non-stick layer. In reality the surface of the non-stick pan becomes covered with a layer of oil or fat when the pan is in use. The oil layer has four functions: lubricates the surface; increases contact between food and pan; acts as a thermal mass to reduce cooking times; and can increase flavor and color. The pans were cast iron. Cast iron is mainly used for outdoor cooking. Now pans are made of metals, such as aluminum and stainless steel. Pans can also be made of copper.HistoryThe first pan was made of copper. And its first use in Mesopotamia and Greece. In Greece they were called “Teganon” and in Rome they were called patella. The first non-stick pan was introduced by DuPont in 1956. The product still has some limitations because the coating is poor and this makes it the standard of kitchen utensils. Radioactivity Radioactivity is a particle released from nuclei as a result of nuclear instability. Because the nucleus is an intense conflict between the two strongest forces in nature, so there are many nuclear isotopes that are unstable and emit radiation. Using a Frying Pan The non-stick frying pan can be used for many fried foods. The function is when we cook slightly wet foods; parts of the food do not stick to the pan. The non-stick pan is different from a regular pan. The non-stick pan has two layers which are the metal body and the non-stick layer while the regular pan has one layer which is the… paper center… acid/teflon decomposition. prod.htm (May 17, 2010)- Neal Litherland (2010). How the hell are non-stick pans made? Available: http://www.ehow.com/how-does_5653323_world-non_stick-frying-pans-made_.html (May 10, 2010) - Paul Kendall (2001). The deadly toxins of non-stick pans. Available: http://www.dailymail.co.uk/health/article-61407/The-deadly-toxins-non-stick-frying-pans.html (6 May 2010) - R. Nave (2005). Radioactivity. Available: http://hyperphysics.phy-astr.gsu.edu/hbase/nuclear/radact.html (30 May 2010) Works Cited http://www.fluorideart.org/pesticides/teflon.decomposition.prod.htm http : //www.ehow.com/how-does_5653323_world-non_stick-frying-pans-made_.html http://www.dailymail.co.uk/health/article-61407/The-deadly-toxins-non-stick-frying -pans.html http://hyperphysics.phy-astr.gsu.edu/hbase/nuclear /radact.html