« On the Road with Tesla “Full Self Driving” Beta 10.2 | Main | Magnetic Mysteries—The “Simple Magnetic Over-Unity Toy” »
Monday, October 18, 2021
TRACKING WITH CLOSEUPS: A Monolithic Schmidt-Cassegrain Telescope
A Schmidt-Cassegrain telescope has multiple optical elements: a spherical primary mirror, a hyperbolic secondary mirror, a Schmidt corrector plate (aspheric lens), and sometimes a field flattener lens to create a planar image. Could you make all of these out of one solid piece of glass?
Posted at October 18, 2021 11:19