The VLT uses a technology called the active optics in which the mirror is maintained at
its almost ideal shape all through the observations and all through the pointings that a telescope does through the 150 actuators below the mirror that push and pull to maintain the shape.
Not exact matches
During the collisions, both the excess neutrons can be transferred to the nickel nuclei, resulting in the creation of nickel - 66, the basic
shape of which is
almost an
ideal sphere.
The same roof
shape makes visibility to the rear less than
ideal making a rear - view camera
almost compulsory.