Of lost works by Archimedes we can identify the following: (I) investigations on polyhedra mentioned by Pappus; (2) Archai, Principles, a book addressed to Zeuxippus and dealing with the naming of numbers on the system explained in the Sand Reckoner; (3) Peri zygon, On balances or levers; (4) Kentrobarika, On centres of gravity; (5) Katoptrika, an optical work from which Theon of Alexandria quotes a remark about refraction; (6) Ephodion, a Method, mentioned by Suidas; (7) Peri sphairopeoia, On Sphere-making, in which Archimedes explained the construction of the sphere which he made to imitate the motions of the sun, the moon and the five planets in the heavens. [Please select]
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I wonder if you have weighed marriage in the balances and found it wanting. [Please select]
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So God, making war upon the great, rights the balances of this world. [Please select]
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Nature has supplied a system of balances if left to itself. [Please select]
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Action and reaction are equal, and the radiatory power of the planets balances their attraction. [Please select]
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This may be seen from the balances that we call steelyards. [Please select]
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