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

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**Daniel123****Member**- Registered: 2007-05-23
- Posts: 663

100 floor tower. 2 identical plates. How many times do we have to drop a plate to find the minimum floor from which dropping a plate will cause it to smash?

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**JaneFairfax****Member**- Registered: 2007-02-23
- Posts: 6,868

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 23,363

I didn't notice that before!

A very interesting problem, and a very good solution!

Thanks, JaneFairfax!

It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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