Throughout this site we use many technical terms, and given the breadth of readership our site enjoys, sometimes we are remiss and incorrectly assume everyone knows what we are referring to. For those that do not, here are some explanations of the technical terms use.
Bi-Metal Strip
A 'sandwich' of two metals with different heat expansion rates. When heat is applied to the strip - such as when an electrical current is passed through it - it bends to make or break a circuit. Common usage is in the direction flasher unit where the audible clicks indicate the making and breaking of the circuit to flash the indicators.
