deep reflector
21Daylighting — For the restoration of culverted streams to above ground channels, see Daylighting (streams). For a similar operation with transportation tunnels, see Daylighting (tunnels). A skylight providing internal illumination Daylighting is the practice… …
22Mount Wilson Observatory — The 100 inch (2,500 mm) Hooker telescope that Edwin Hubble used to discover the general expansion of the universe …
23Color scroller — A color scroller or color changer is an electro mechanical lighting accessory used in theater, film, dance and concerts to change the color projected by stage lighting instruments without the need of a person to be in the vicinity of the light. A …
24Pebble bed reactor — Sketch of a pebble bed reactor in Italian …
25Antenna (radio) — Whip antenna on car …
26Lick Observatory — the astronomical observatory of the University of California, situated on Mount Hamilton, near San Jose, California, and having a 120 in. (3 m) reflecting telescope and a 36 in. (91 cm) refracting telescope. * * * ▪ observatory, California,… …
27James Webb Space Telescope — General information Organization NASA[1], with significant contributions from ESA and CSA …
28Lunar Reconnaissance Orbiter — Vue d artiste Caractéristiques Organisation NASA …
29Outdoor cooking — for information on more outdoor techniques, see Grilling and Barbecue. Cooking in the outdoors using heated stone …
30Overhead projector — in operation during a classroom lesson An overhead projector is a variant of slide projector that is used to display images to an audience. Contents 1 Mechanism …
