Springs are, for some product makers, more than a product. Mechanical engineers can tell you springs are not mere products; these are the solution to some of the most demanding problems. There are various types of springs, and return springs are one of them. A return spring is a type of spring which are connected to two machine parts or mechanical parts with its two ends, and when pressed, it changes the position, and when the applied pressure is removed, it returns to the normal position. The most common example of using a return spring is in the bell switch. Bell switch, when pressed, turns on, and when the pressure is removed, the button turns off as the return spring returns to its normal position. The small and less powered return springs (the springs that can store a lower amount of potential energy) are found below the keys in a keyboard. The V2 tappet return springs are similar, except they are more prominent and used in heavy machines and mechanical parts. You can easily...