80 results found displaying 49-51
   
Jim10
 USA
Skateboard Mastery Printer Friendly Version
A special treadmill to either learn skateboard basics or enhance one's current skills: Treadmill with a rotating, flat surface and handles to grab on either side to keep one stable in the beginning. The surface could be tilted in any direction for a variety of slope experiences. The speed could be adjusted. For real beginners, you could even have grooves in the surface to help stabilize while one gets the basic feeling of riding. An advanced setting might consist of the treadmill on a higher speed, tilted forward, rider moving from side to side with hands in the air (off the rails). This would be a safe and fun way of learning a pretty challenging sport.

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Jim10
 USA
Skateboard Monorail Printer Friendly Version
The track for the skateboard would be a single rail track on ground level, built in sections and fastened to the ground over a sloping terrain. The rail would be hollow consisting of a chamber to house both wheels of a skateboard. The skateboard would consist of a typical platform for the rider and have a single wheel fore and aft. The skateboard would essentially be locked onto the track, yet freely move at potentially high speeds- depending on the length and slope of the track. We're talking extreme sport here!... as an advanced course might consist of an alpine run starting at the top of a mountain and ending in a valley below. Helmet and other protective gear highly recommended. Or how about a bobsled version to prevent the rider from falling off?
Reward: Install a baby one in my backyard.
 

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32°

   
stephan d
 USA
Ballista bow Printer Friendly Version
This idea is for a steel torsion spring powered 'ballista' (ancient roman war machine that resembles a crossbow) which fires ballbearings. It could be used for hunting and with such durable ammunition it would be more economical than bows and arrows or firearms. Also would be great fun to shoot at gongs!
Reward: I'd like to shoot one
 

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