Nadir is employed during remote sensing of the atmosphere, as well as when an astronaut faces the Earth while performing a spacewalk. The term nadir can also be used to represent the lowest point reached by a celestial body during its apparent orbit around a given point of observation. This can be used to describe the location of the Sun, but it is only technically accurate for one latitude at a time and only possible at the low latitudes. The sun is said to be at the nadir at a location when it is at the zenith at the location's antipode
Overhead press the weight from the floor (clean and press). The weight is then pressed to overhead until the elbows are fully locked out. As the weight clears the head, the lifter leans forward slightly, or comes directly under, in order to keep balance. As the weight is lowered back to racking position and clears the head again, the lifter leans slightly back. The overhead press is a highly effective compound full-body exercise. The exercise can be done sitting or standing, with alternating arms or with a hammer grip in which the palms are turned in toward the face. Performing it standing