Thomas Holstein

Thomas Holstein

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Velomobil PodBike 34 view from back

Velomobil PodBike 34 view from back

Maxwell's Wheel

Maxwell's Wheel is an excellent visual demonstration of the conservation of energy

Vortex

Vortex

The vortex tube, also known as the Ranque-Hilsch vortex tube, is a mechanical…

The hilsch vortex tube, cools and heats air at the SAME time with no moving parts, and NO electricity. it's quite simple, and only a matter of getting the.

Nikola Tesla is well known for his contributions to electrical engineering, so it’s more than a little surprising to hear that he also made contributions to fluid power. Thanks to the popularity of the Internet, many of these old and forgotten investments are coming to light, including a device called a “Tesla Valve.” A Tesla […]

Green Energy Tips That Can Save You Money Today! Have you considered joining the green energy revolution, but don't know what you need to do to get started?

Van de Graaff Generator Tesla coil - Physics Playground

Resource for Van de Graaff Generators and Jacobs Ladder Climbing Arc

Gyroscope. A Victorian lacquered brass gyroscope by F.E. Becker ...

A Victorian lacquered brass gyroscope by F. Becker & Co, high, in a mahogany