Images Dated 5th December 2006

The Periodic Table Digital Illustration

In the late 19th century, Russian chemist Dmitri Mendeleev published his first attempt at grouping chemical elements according to their atomic weights. There were only about 60 elements known at the time, but Mendeleev realized that when the elements were organized by weight, certain types of elements occurred in regular intervals, or periods.
Today chemists officially recognize 118 elements and still use Mendeleev's periodic table of elements to organize them. The table starts with the simplest atom, hydrogen, and then organizes the rest of the elements by atomic number, which is the number of protons each contains. With a handful of exceptions, the order of the elements corresponds with the increasing mass of each atom

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Landscape modified by the erosion process

Landscape modified by the erosion process. Goreme National Park and the Rock Sites of Cappadocia UNESCO World Heritage Site. Turkey. December 2006

Abstract, Abstracts, Asia, Cappadocia, Catalogue10, Central Anatolia, Erosion, Geology, Goreme, Landform, Landscape, Middle East, National Park, Protected Area, Reserve, Rock, Turkey, Unesco World Heritage Site, Winter

Illustration, cross-section diagram of catalytic converter with arrows indicating the direction of emissions flow

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73016884, Air Pollution, Arrow Symbol, Arrows, Burning Fuels, Car, Cars, Catalytic Converters, Catcons, Change, Chemistry, Climate Change, Color Image, Colour Image, Components, Converter, Converting, Cross Section, Cut Out, Diagram, Emission, Emissions, Engine, Engines, Environment, Exhaust, Exhaust Fumes, Flow, Flowing, Fossil Fuel, Gases, Gasoline, Horizontal, Illustration, Illustration Technique, Internal Combustion Engines, Land Vehicle, Man Made, Motion, No People, Nobody, Plug Adapter, Poisonous, Road Vehicles, Single Object, Technology, The Environment, Toxicity, Transportation, White Background