Minute of arc Reference Libraries
Adaptive Optics -- Adaptive optics is a technology to improve the performance of Earth-based telescopes, reversing the effect of atmospheric distortions. When light from a star or another astronomical object enters the Earth's atmosphere, the different temperature layers and different wind speeds distort and move the image in various ways (see seeing for a proper discussion). The net...
- a study of the individuals in a group of people within a specific context and their relationships.
- In rhetoric, the description of any one's personal appearance.