fluid. n. 1. (General Physics) a substance, such as a liquid or gas, that can flow, has no fixed shape, and offers little resistance to an external stress. adj. 2. (General Physics) capable of flowing and easily changing shape.
The thermosphere layer. The thermosphere layer is called the thermal layer as it is the hottest layer of the atmospheric envelope . It is the fourth layer of the atmospheric envelope, The temperature of the thermosphere layer increases with a high rate as we go up until it reaches 1200 degree Celsius
| Filed Under: Space Leave a Comment. The ionosphere layer of the atmosphere overlaps the mesosphere and thermosphere and is the uppermost part of the atmosphere. The temperature of the ionosphere ranges from about 200K, or -73 ÂºC (-99.4 ÂºF) to 500K, or 227 ÂºC (440.6 ÂºF).So basically at the bottom it is 200K. At the top it is 500K.K is in Kelvin.he temperature of the ionosphere ranges from about 200K, or -73 ÂºC (-99.4 ÂºF) to 500K, or 227 ÂºC (440.6 ÂºF). So basically at the bottom it is 200K. At the top it is 500K. K is in Kelvin.