evacuated bulb
21incandescent light — Tungsten lamp Tung sten lamp An electric glow lamp having filaments of metallic tungsten, and contained in a glass bulb which is evacuated or has an inert gas, to avoid oxidation of the tungsten; a common form of light bulb. Such lamps, owing to… …
22Tungsten lamp — Tung sten lamp An electric glow lamp having filaments of metallic tungsten, and contained in a glass bulb which is evacuated or has an inert gas, to avoid oxidation of the tungsten; a common form of light bulb. Such lamps, owing to the refractory …
23X-ray tube — An X ray tube is a vacuum tube that produces X rays. They are used in X ray machines. X rays are part of the electromagnetic spectrum, an ionizing radiation with wavelengths shorter than ultraviolet light. X ray tubes evolved from experimental… …
24incandescent lamp — a lamp that emits light due to the glowing of a heated material, esp. the common device in which a tungsten filament enclosed within an evacuated glass bulb is rendered luminous by the passage of an electric current through it. Cf. fluorescent… …
25Frederick Soddy — Infobox Scientist name = Frederick Soddy image size = 180px birth date = birth date|1877|9|2 birth place = Eastbourne, England nationality = United Kingdom death date = death date and age|1956|9|22|1877|9|2 death place = Brighton, England field …
26Henry Moseley — Infobox Scientist name = Henry Moseley box width = 300px image size = 300px caption = Henry Moseley at work. This rare image is the only non portrait photograph known of the physicist. birth date = November 23, 1887 birth place = Weymouth, Dorset …
27Cyclotron — For other uses, see Cyclotron (disambiguation). A modern Cyclotron for radiation therapy …
28Neon sign — …
29SS Andrea Doria — was an ocean liner for the Italian Line (Società di navigazione Italia) home ported in Genoa, Italy. Named after the 16th century Genoese admiral Andrea Doria, the Andrea Doria had a gross tonnage of 29,100 and a capacity of about 1,200… …
30Carbon button lamp — The carbon button lamp is a single electrode incandescent lamp invented by Nikola Tesla during his effort to get around the Edison patent for the incandescent light bulb. A carbon button lamp contains a small carbon sphere positioned in the… …
