2011年8月5日星期五

Egyptian tomb mystery may be world's first protractor

A new angle (Image: Jane Maria Hamilton)
One physicist reckons that an enigmatic object found in the tomb of an ancient Egyptian architect was used to measure angles


How Amelia Sparavigna thinks it might have been used

How Amelia Sparavigna thinks it might have been used
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A new angle (Image: Jane Maria Hamilton)How Amelia Sparavigna thinks it might have been used
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