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.
Horses evolved over 50 million years from small many toed animals to the big beautiful, single-toed horses of today. The modern horse has been domesticated around the world for many reasons including transportation and battle.Horses tend to live for about 30 years, and the oldest recorded horse at age 56 died in 2007.Horses graze on plant matter and vegetation, preferably tender green grass. The height of a horse is measured in hands, 1 hand being the same as 10cm (4 inches).orses tend to live for about 30 years, and the oldest recorded horse at age 56 died in 2007. Horses graze on plant matter and vegetation, preferably tender green grass. The height of a horse is measured in hands, 1 hand being the same as 10cm (4 inches).