Parent material — Parent material, in soil science, means the underlying geological material (generally bedrock or a superficial or drift deposit) in which soil horizons form. Soils typically get a great deal of structure and minerals from their parent material.… … Wikipedia
Convention on the Physical Protection of Nuclear Material — The Convention on the Physical Protection of Nuclear Material (CPPNM) was adopted on 26 October 1979 in Vienna, Austria. The initial signing ceremony took place in Vienna and at New York on 3 March 1980, and the convention entered into force on 8 … Wikipedia
glacial landform — ▪ geology Introduction any product of flowing ice and meltwater. Such landforms are being produced today in glaciated areas, such as Greenland, Antarctica, and many of the world s higher mountain ranges. In addition, large expansions of present… … Universalium
Fingerprint — This article is about human fingerprints. For other uses, see Fingerprint (disambiguation) … Wikipedia
harbours and sea works — Introduction harbour also spelled harbor any part of a body of water and the manmade structures surrounding it that sufficiently shelters a vessel from wind, waves, and currents, enabling safe anchorage or the discharge and loading of… … Universalium
Sputter deposition — is a physical vapor deposition (PVD) method of depositing thin films by sputtering, that is ejecting, material from a target, that is source, which then deposits onto a substrate, such as a silicon wafer. Resputtering is re emission of the… … Wikipedia
Electron beam induced deposition — (EBID) is a process of decomposing gaseous molecules by electron beam leading to deposition of non volatile fragments onto a nearby substrate. Process Focused electron beam of scanning electron microscope (SEM) or scanning transmission electron… … Wikipedia
Soil — For other uses, see Soil (disambiguation). A represents soil; B represents laterite, a regolith; C represents saprolite, a less weathered regolith; the bottommost layer represents bedrock … Wikipedia
Radioactive contamination — The radiation warning symbol (trefoil) … Wikipedia
Fossil collecting — Collecting fossilized shark s teeth is an easy way to begin collecting fossils. They are often found in abundance on public beaches. The teeth shown here were collected in Castle Hayne, North Carolina, and are from the Eocene and Cretaceous … Wikipedia
Photoionisation cross section — in the context of condensed matter physics refers to the probability of a particle (usually an electron) being emitted from its electronic state. Cross section in photoemission The photoemission is a useful experimental method for the… … Wikipedia