Francesco Redi, the founder of the experimental biology, is recognized to be one of the greatest biologists of all time. A biologist, or biological scientist, is a scientist who studies living organisms, often in the context of their environment. Biologists involved in fundamental research attempt to explore and further explain the underlying mechanisms that govern the functioning of organisms. Biologists involved in applied research attempt to develop or improve more specific processes and understanding, in fields such as medicine, industry and agriculture.
Satellites move in a path around the Earth called an orbit. Every satellite must have an orbital path (remember, satellites that travel into deep space to look at distant planets are not true satellites, they are in fact space probes), and the type of path it takes is determined by the physics involved. satellite's orbit works because of a balance between two forces. The orbit is a combination of the satellite's velocity-the speed it is travelling in a straight line-and the force of the Earth's gravitational pull on the satellite.
There are essentially three types of Earth orbits: high Earth orbit, medium Earth orbit, and low Earth orbit. Many weather and some communications satellites tend to have a high Earth orbit, farthest away from the surface. satellite that orbits directly above the equator has zero inclination. If a satellite orbits from the north pole (geographic, not magnetic) to the south pole, its inclination is 90 degrees. Orbital inclination is the angle between the plane of an orbit and the equator.