isotopic examination
31On Your Knees Cave — (49 PET 408) is an archaeological site located in southeastern Alaska. Human remains were found at the site in 1996 that dated between 9,730 ±60 and 9,880±50 radiocarbon YBP[1] or a calendrical date of 10,300 YBP.[2] In addition to human skeletal …
32Lead poisoning — Classification and external resources An X ray demonstrating the characteristic finding of lead poisoning, dense metaphyseal lines. ICD 10 T …
33Chemical biology — is a scientific discipline spanning the fields of chemistry and biology that involves the application of chemical techniques and tools, often compounds produced through synthetic chemistry, to the study and manipulation of biological systems.… …
34mineralogy — mineralogical /min euhr euh loj i keuhl/, mineralogic, adj. mineralogically, adv. mineralogist, n. /min euh rol euh jee, ral euh /, n. the science or study of minerals. [1680 90; MINERA(L) + LOGY] * * * Scientific study of minerals, including… …
35photosynthesis — photosynthetic /foh teuh sin thet ik/, adj. photosynthetically, adv. /foh teuh sin theuh sis/, n. Biol., Biochem. (esp. in plants) the synthesis of complex organic materials, esp. carbohydrates, from carbon dioxide, water, and inorganic salts,… …
36Atom — The atom is the smallest unit of an element that retains the chemical properties of that element. An atom has an electron cloud consisting of negatively charged electrons surrounding a dense nucleus. The nucleus contains positively charged… …
37Depleted 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… …
38Great white shark — Taxobox name = Great white shark fossil range = Pliocene to recent status = VU trend = unknown status system = iucn2.3 image width = 250px regnum = Animalia phylum = Chordata classis = Chondrichthyes subclassis = Elasmobranchii ordo = Lamniformes …
39Orogeny — Geologic provinces of the world (USGS)   Shield …
40Henry Eyring — Infobox Scientist box width = 300px name = Henry D. Eyring image size = caption = Henry D. Eyring birth date = February 20, 1901 birth place = city state|Colonia Juárez|Chihuahua, Mexico death date = December 26, 1981 death place = Salt Lake City …
