Eureka (word)
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Eureka is an exclamation used to celebrate a discovery or invention. It is a transliteration of an exclamation attributed to Ancient Greek mathematician and inventor Archimedes.
Archimedes exclaiming Eureka. In his excitement, he forgets to dress and runs nude in the streets straight out of his bath. Drawing by Pietro Scalvini, engraving by Carlo Orsolini, 1737.
16th-century illustration of Archimedes in the bath, with Hiero's crown at bottom right
Am Cyc California seal
Vitruvius
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Vitruvius was a Roman architect and engineer during the 1st century BC, known for his multi-volume work titled De architectura. As the only treatise on architecture to survive from antiquity, it has b
Engraving by Jacopo Bernardi after Vincenzo Raggio, 1823 or 1847
Roman house plan after Vitruvius
"Vitruvian Man", illustration in the edition of De architectura by Vitruvius; illustrated edition by Cesare Cesariano (1521).
Vitruvian Man by Leonardo da Vinci, an illustration of the human body inscribed in the circle and the square derived from a passage about geometry and human proportions in Vitruvius' writings