dust content
91Depleted uranium — The DU penetrator of a 30 mm round[1] Depleted uranium (DU; also referred to in the past as Q metal, depletalloy, or D 38) is uranium with a lower content of the fissile isotope U 235 than natural uranium (natural uranium is about 99.27% uranium… …
92Asthma — For other uses, see Asthma (disambiguation). Asthma Classification and external resources Peak flow meters are used to measure one s peak expiratory flow rate ICD 10 …
93Air pollution — from World War II production Smog over …
94Oklahoma — This article is about the U.S. state of Oklahoma. For other uses, see Oklahoma (disambiguation). State of Oklahoma …
95Nebular hypothesis — Star formation Interstellar medium Molecular cloud …
96AU Microscopii — Starbox begin name=AU Microscopii Starbox image caption=Microscopii s debris disk. Starbox observe epoch=J2000 ra=RA|20|45|09.5318 dec=DEC| 31|20|27.238 appmag v=8.61 constell=Microscopium Starbox character class=M1 Ve b v=1.45 u b=1.01… …
97Historia de la Tierra — El planeta Tierra, fotografiado en el año 1972. La historia de la Tierra abarca aproximadamente 4.600 millones de años (Ma),[1] desde su formación a partir de la nebulosa protosolar. Ese ti …
98Concrete — This article is about the construction material. For other uses, see Concrete (disambiguation). Outer view of the Roman Pantheon, still the largest unreinforced solid concrete dome.[1] …
99Saturn — Infobox Planet bgcolour = #FFCC66 name = Saturn symbol = caption = Saturn, as seen by Cassini orbit ref =cite web last = Yeomans | first = Donald K. | date = 2006 07 13 url = http://ssd.jpl.nasa.gov/?horizons title = HORIZONS System | publisher …
100Giant impact hypothesis — Big splash redirects here. For other uses, see Big Splash (disambiguation). Artist s depiction of the giant impact that is hypothesized to have formed the Moon The giant impact hypothesis proposes that the Moon was created out of the debris left… …
