Apollonius of Perga summary

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Apollonius of Perga, (born c. 240 bc, Perga, Anatolia—died c. 190 bc, Alexandria, Egypt), Mathematician known as “The Great Geometer.” His Conics was one of the greatest scientific treatises of the ancient world. In it he introduced the terms parabola, ellipse, and hyperbola. Because Conics was fundamental to later advances in optics and astronomy in the Islamic world, a 9th-century Arabic translation survived to fill in for some of the missing Greek original. Generally, his other writings survive only as titles.

conic section Summary

Conic section, in geometry, any curve produced by the intersection of a plane and a right circular cone. Depending on the angle of the plane relative to the cone, the intersection is a circle, an ellipse, a hyperbola, or a parabola. Special (degenerate) cases of intersection occur when the plane

planet Summary

Planet, (from Greek planētes, “wanderers”), broadly, any relatively large natural body that revolves in an orbit around the Sun or around some other star and that is not radiating energy from internal nuclear fusion reactions. In addition to the above description, some scientists impose additional

mathematics Summary

Mathematics, the science of structure, order, and relation that has evolved from elemental practices of counting, measuring, and describing the shapes of objects. It deals with logical reasoning and quantitative calculation, and its development has involved an increasing degree of idealization and