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.
August 30, 1983, the space shuttle Challenger lifted off with Guion Guy Bluford, Jr., the first African American in space. The first African-American woman in space: Mae Jemison lifted off in the space shuttle Endeavour on September 12, 1992, first African American woman in space. The first space walk: Alexei Leonov, a Soviet cosmonaut, was the first person to step outside of his spacecraft while in space, on March 18, 1965.