who discovered the three laws of planetary motion
Kepler's laws of planetary motion Johannes Kepler published his first two laws about planetary motion in 1609, having found them by analyzing the astronomical observations of Tycho Brahe.[10][3][11] Kepler's third law was published in 1619.[12][3] Notably, Kepler had believed in the Copernican model of the solar system, which called for circular orbits, but could not reconcile Brahe's highly precise observations with a circular fit to Mars' orbit (Mars coincidentally having the highest eccentricity of all planets except Mercury[13]). His first law reflected this discovery.
Andrea Gail All six of the crew were lost at sea.
Harlan Howard Howard formulated the oft-quoted definition of a great country song: "Three chords and the truth."[3]
Limit of a function (the Dirichlet function) has no limit at any x-coordinate.