thermometer pocket
21First aid — This article is about the provision of immediate care. For the Transformers character, see First Aid (Transformers) …
22John Harrison — Infobox Scientist name = John Harrison |300px image width = 260px caption = P.L. Tassaert s half tone print of Thomas King s original 1767 portrait of John Harrison, located at the Science and Society Picture Library, London birth date = birth… …
2318th century — The 18th century lasted from 1701 to 1800 in the Gregorian calendar, in accordance with the Anno Domini/Common Era numbering system. However, historians sometimes specifically define the 18th century otherwise for the purposes of their work. For… …
24Nixie tube — The ten digits of a GN 4 Nixie tube. A nixie tube is an electronic device for displaying numerals or other information. The glass tube contains a wire mesh anode and multiple cathodes. In most tubes, the cathodes are shaped like numerals.… …
25List of inventors — This is a list of inventors. See also: List of scientists, Timeline of invention, List of inventions named after people, List of inventors killed by their own inventions, and . Alphabetical list compactTOC NOTOC A * Vitaly Mikhaylovich Abalakov,… …
26Charles Wheatstone — Wheatstone, drawn by Samuel Laurence in 1868 Born 6 …
27A Perfect Murder — Infobox Film name = A Perfect Murder caption = Theatrical release poster director = Andrew Davis producer = Arnold Kopelson Anne Kopelson Peter Macgregor Scott Christopher Mankiewicz writer = Patrick Smith Kelly starring = Michael Douglas Gwyneth …
28Tricorder — In the fictional Star Trek universe, a tricorder is a handheld device used for scanning an area, interpreting and displaying data from scans to the user, and recording information.Three primary variants of the tricorder were issued in Star Trek s …
29Phoenix (spacecraft) — This article is about the Mars lander. For the Star Trek spacecraft, see Phoenix (Star Trek). For other uses, see Phoenix (disambiguation). Phoenix Mars Mission Artist s impression of the Phoenix spacecraft as it lands on Mars Operator NASA …
30Keychain — A keychain or key chain is a small chain, usually made from metal or plastic, that connects a small item to a keyring. The length of a keychain allows an item to be used more easily than if connected directly to a keyring. Some keychains allow… …
