enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. NASA Infrared Telescope Facility - Wikipedia

   en.wikipedia.org/wiki/NASA_Infrared_Telescope...

   A small mirror in the center of the secondary mirror prevents the instrument from seeing its own thermal emission. The f/ratio is long to have a small secondary mirror, again to minimize the telescope's thermal emission. The mirror coatings are chosen to have minimal thermal emission. The emissivity of the telescope is usually below 4%.

3. Claude glass - Wikipedia

   en.wikipedia.org/wiki/Claude_glass

   Claude Lorrain mirror in shark skin case. A Claude glass (or black mirror) is a small mirror, slightly convex in shape, with its surface tinted a dark colour. Bound up like a pocket-book or in a carrying case, Claude glasses were used by artists, travelers and connoisseurs of landscape and landscape painting.

4. Zerodur - Wikipedia

   en.wikipedia.org/wiki/Zerodur

   It also has been used for the primary mirror of SOFIA's airborne telescope. [13] In space, it has been used for the imager in Meteosat Earth observation satellites, [14] and for the optical bench in the LISA Pathfinder mission. [15] In microlithography, Zerodur is used in wafer steppers and scanner machines for precise and reproducible wafer ...

5. The 30 Best 'Cool' Gifts for Teens in 2022

   www.aol.com/lifestyle/best-gifts-for-teens...

   The sticky-backed photos printed from this wireless compact printer are smudge-proof, waterproof and tear-resistant — perfect to decorate bedrooms, lockers, mirrors and more.

6. Alex Upgraded Her Space With a Stunning New Floor Mirror - AOL

   www.aol.com/alex-upgraded-her-space-stunning...

   For premium support please call: 800-290-4726 more ways to reach us

7. Segmented mirror - Wikipedia

   en.wikipedia.org/wiki/Segmented_mirror

   Size comparison of primary mirrors. Segmented mirrors are typically hexagonal and arranged in a honeycomb pattern. A segmented mirror is an array of smaller mirrors designed to act as segments of a single large curved mirror. The segments can be either spherical or asymmetric (if they are part of a larger parabolic reflector [1]).