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Dec 23, 2003

"There are more things in heaven and earth, Horatio, than are dreamt of in your philosophy." --Shakespeare, in 'Hamlet'

Top Notch Plumber in 535BC

Imagine 535BC, you're Eupalinus, a top notch plumber in Greece. A tyrant, Polycrates, commissions you to build a massive, 4500 foot water tunnel across a steep, rocky hill that'll bring fresh spring water to town. With nothing more than mathematics and geometry, your team starts about 1,350m apart, on two opposite sides of a hill, and meets - precisely - in the middle! Being just a metre or two out would have meant failure, no water for the city, and would cost Eupalinus his life. To this day, 8 foot wide tunnel still exists near Athens but nobody has been able to work out how they did it!

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