Browsing All Posts published on »August 24th, 2010«

Fact sheet: The Scale of things

August 24, 2010 by

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Well organized graphic showing how large and small numbers are used to describe the real world. Shows pictures of objects along side of the order of magnitude of their sizes. Good for getting a feel for how the numbers are used and for making these small and large sizes comprehensible.

Downloadable simulation: Inertia of a ball on a wagon (Mathematica)

August 24, 2010 by

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Downloadable simulation showing inertia in action. A simple demo, but it nails the point home. This Demonstration depicts a simple experiment, in which a small car with an object on top hits an obstacle, and the object continues its motion in the same direction and with the same speed

Downloadable simulation: Periodic table in 3D (Mathematica)

August 24, 2010 by

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Downloadable simulation showing periodic trends in the properties of elements in a novel way. Good for seeing how electronegativity, atomic radius, and so on, change across groups and periods. This Demonstration shows 3D bar charts of the periodic table with various element property values