Gait disorders in the elderly are common and in most cases cannot be treated medically or surgically. Therefore, treatment often relies on ambulatory devices such as canes, crutches, and walkers. Before selecting a device, the patient should be evaluated to define whether one or both upper extremities are required to achieve balance or bear weight.
The first living thing to go in space is a dog named Laika a russian dog that captured in moscow when its on space she died a few weeks.
Space Shuttle, the world's first reusable spacecraft. The US space shuttle, first launched in 1981, was the world's first reusable spacecraft. NASA ran the programme of 135 manned missions. Mission control was located at Johnson Space Center in Houston, Texas, while the shuttles themselves launched from Kennedy Space Center in Cape Canaveral, Florida.