While the functional elements of MEMS are miniaturized structures, sensors, actuators, and microelectronics, the most notable (and perhaps most interesting) elements are the microsensors and microactuators.
The horse (Equus caballus) has made many dramatic and significant journeys. During the Pleistocene (Ice Age), more than 20,000 years ago, wild horses that had evolved in America migrated to the Old World, Eurasia and Africa. More than 6,000 year ago in the Volga basin of eastern Europe horses were domesticated and in the subsequent millennia spread to other parts of Asia, Europe, and Africa.
An average horse should live around 25-30 years old, that is if it is healthy. If you are lucky, your horse will live longer! The oldest horse was 62 years old! I have known horses to live for over 30 years! The oldest I have known was 32 and was still being used in a riding school for 1 hour a day!