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Electricity Simulations. Solar System. Game Theory. NSTA Learning Center. Moodle. Teaching Online. Discrete Math Lecture Notes. Teaching Resources. MathAppendices. From Eric Weisstein's World of Chemistry. Chemistry - few periodic rules to rule them all :) Tableofcontents. Communicating at an unknown rate.

Website Directory. College Physics. Science news and science jobs from New Scientist. K-MODDL > Tutorials > Reuleaux Triangle. If an enormously heavy object has to be moved from one spot to another, it may not be practical to move it on wheels.

K-MODDL > Tutorials > Reuleaux Triangle

Instead the object is placed on a flat platform that in turn rests on cylindrical rollers (Figure 1). As the platform is pushed forward, the rollers left behind are picked up and put down in front. An object moved this way over a flat horizontal surface does not bob up and down as it rolls along. The reason is that cylindrical rollers have a circular cross section, and a circle is closed curve "with constant width. " Science.

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