Model, Physical Eye, can be used to demonstrate the optical functions of the human eye, Half eyeball with adjustable iris diaphragm, lens holder and 2 convex lenses (f = 65 mm and 80mm), on a rod, Dimensions: 49 x 5.5 x 18 cm, Weight: 2.45 kg
Model, Basic Crystal Structures, Set of 9, is a valuable teaching aid for physics and chemistry, Similar patterns of atomic arrangement reappear in large numbers of different substances, Dimensions: 28 x 20 x 19 in
Model, Diamond Crystal, is surrounded by four atoms directed in space toward the vertices of a tetrahedron, The hardness and large density of the diamond, contains 66- 1 inch balls, Dimensions: 24 x 24 x 12 in, Weigh
Model, Copper Crystal, is a chemical element with symbol Cu (from Latin: cuprum) and atomic number 29, It is a soft, malleable and ductile metal with very high thermal and electrical conductivity, Dimensions: 12 x 12
Model, Magnesium Crystal, is a chemical element with symbol Mg and atomic number 12, It is a shiny gray solid which bears a close physical resemblance to the other five elements in the second colum, Dimensions: 15 x
Convection of Gases Apparatus, consists of a metal box (22x10x11cm) with clear acrylic front panel, two glass chimneys, a candle and a cotton filled wick as the smoke source, Includes activity guide
Model, Calcite (1/2 unit cell) Crystal, is a carbonate mineral and the most stable polymorph of calcium carbonate (CaCO3), The other polymorphs are the minerals aragonite and vaterite, includes 66 1 inch balls, Dimen
Model, Buckminster Fullerene C60, is a spherical fullerene molecule with the formula C60, It has a cage-like fused-ring structure (Truncated icosahedron) which resembles a soccer ball, contains 60- 1 inch balls
Model, Beryl Crystal, hexagonal, is a mineral composed of beryllium aluminium cyclosilicate with the chemical formula Be3Al2(Si O3)6, Pure beryl is colorless, Beryl contains 256- 1 inch balls, Dimensions: 36 x 24 x 24
Model, Rutile Crystal, is a mineral composed primarily of titanium dioxide, TiO2, Rutile is the most common natural form of TiO2, Brookite, an orthorhombic mineral, Rutile 52 contains - 1 inch balls, Dimensions: 20 x
Model, Carbon Dioxide Crystal, is a colorless and odorless gas vital to life on Earth. This naturally occurring chemical compound is composed of a carbon atom covalently double bonded to two oxygen atoms, Dimension
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