Psychicvisions Home Page. Numerology: Karmic Debt Numbers. In numerology there is a very interesting concept called the karmic debt number. This is based on the idea that each of us is a spiritual being that is reincarnated again and again, and each time we reincarnate we reach higher states of awareness.
There are two basic kinds of uses for telescopes: daytime terrestrial (bird watching, scenery, sports) and astronomical (planets, galaxies, stars, the Moon) viewing. All telescopes can be used in some capacity for both purposes, but some telescopes are best suited for only one use.
Since reflecting telescopes use mirrors, the design is sometimes referred to as a  catoptric  telescope. mid-20th century innovation was catadioptric telescopes such as the Schmidt camera, which use both a spherical mirror and a lens (called a corrector plate) as primary optical elements, mainly used for wide-field imaging without spherical aberration.