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  1. A

    Reuleaux polygon bicycle - uses triangular/pentagonal wheels

    What isn't apparent here is that the axle(s) would create a "bobbing up and down" of the bike's saddle, unless the position of the axle is constantly adjusted with respect to the bike's frame. Which is, engineering-wise, an expensive and commercially prohibitive exercise. Round wheels are...
  2. A

    almost lost rear wheel at 40+mph

    Good idea BVH... Castellated nut and split pin will make sure the nut ain't going anywhere. Cheers.
  3. A

    Perpetual motion magnetic motor...possible?

    Regarding the first vid of the "magnetic motor", I find it difficult to believe that a guy who can barely construct and/or articulate a sentence in English has the mental prowess to design something that's escaped the abilities of thousands of scientists and engineers over the last couple of...
  4. A

    4,600 members

    Ahhh... Just to upset your stats Reid, herewith my second post... :P ——Geoff.
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