Math Is Fun Forum
  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

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#1 Re: Formulas » Perpetual calendar » 2011-12-15 16:01:27

If there were no resistance to motion, perpetual motion would work.  However; It would still be useless for as soon as you want that motion to work for you, you would be causing resistance and the motion would diminish and stop.

#2 Re: Maths Is Fun - Suggestions and Comments » I Disagree with solution for 5 pirate puzzle » 2011-12-01 13:02:59

Have tried to register and did not find an email that was to be sent to me.  Have tried to reregister, but get a message that my username or email is already being used.  What do I do?

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