balloon structure
31Observational cosmology — Physical cosmology Universe · Big Bang …
32Track (rail transport) — Permanent way redirects here. For other uses, see Permanent way (disambiguation). Twin rail tracks in a wooded area …
33Metallic bond — Metallic bonding is the electrostatic attractive forces between the delocalized electrons, called conduction electrons, gathered in an electron sea , and the positively charged metal ions. Understood as the sharing of free electrons among a… …
34Atmosphere of Venus — Atmosphere of Venus …
35List of accidents and incidents involving military aircraft, pre-1950 — This is a list of notable accidents and incidents involving military aircraft grouped by the year in which the accident or incident occurred. For more exhaustive lists, see the [http://www.baaa acro.com/ Aircraft Crash Record Office] or the [http …
36Mars Observer — Artist rendering of Mars Observer in orbit around Mars. Operator NASA / JPL …
37Tensegrity — For the movement system created by Carlos Castaneda, see Tensegrity (Castaneda) components.The term tensegrity was first explored by artist Kenneth Snelson to produce sculptures such as his 18 meter high Needle Tower in 1968. The term tensegrity… …
38Resource fork — The resource fork is a construct of the Mac OS operating system used to store structured data in a file, alongside unstructured data stored within the data fork. A resource fork stores information in a specific form, such as icons, the shapes of… …
39List of Royal Air Force aircraft squadrons — This is a list of Royal Air Force aircraft squadrons. It includes Royal Flying Corps (RFC) and Royal Naval Air Service (RNAS) squadrons incorporated into the Royal Air Force (RAF) when it was formed in April 1918, during the First World War. The… …
40Osoaviakhim-1 — Crash site Accident summary Date January 30, 1934 …
