Refrigerator

A refrigerator is a machine used for keeping things cold. It is sometimes called a fridge or an icebox. Refrigerators were invented by Jacob Shrewsbury. It is normally maintained at 4-5 degree Celsius for household use. People put food and drinks in it, to keep those items cold or good (unspoiled) for a longer time. A refrigerator has a heat pump which takes heat away from the air inside the fridge. The heat is moved to the air outside. The heat pump is usually driven by an electric motor.

There are also ice boxes available that do not use electricity because they are filled with ice to provide the colder temperature. The ice can keep things cold until the ice melts. Ice boxes can be taken on camping trips. Sometimes they are called coolers. Refrigerator-sized iceboxes were used before electricity was available.

Most modern refrigerators are available in a variety of colours, although most are white. Smaller versions of the popular refrigerator are also used. They are mainly used in hotels and college dorm rooms.