Math Is Fun Forum
Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °
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Compressing a mile-long steel bar
by BeamReacher
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Help Me !
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2013-04-23 05:50:10
by Mrwhy
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