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| How to Make a Burning Laser | Rotary Engine | Ram Pump |
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| Mendocino Motor - solar powered, magnetically levitated ! | Ion propulsion | Steam and heat Engines |
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| Self-Replicating Repairing Robots (http://www.forofriki.com) | Cool Computer Program | Motor of liquid rotor |
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| Bob Teal Magnipulsion - Missing Interview Surfaces | Homebuilt High Voltage (30kv) DC supply | big Homopolar Motor |
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| Homopolar Battery Motor | Lindemann Rotary Attraction Motor |
