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Though the initial formation was proposed by Sir Joshua Reynolds, Dr. Samuel Johnson became the person most closely associated with the Club. John Timbs, in his Club Life in London, gives an account of the Club's centennial dinner in 1864, which was celebrated at the Clarendon hotel. Henry Hart Milman, the English historian, was treasurer.
Directrix - a feminine form of director in the context of grammatical gender Topics referred to by the same term This disambiguation page lists mathematics articles associated with the same title.
The directrix of a conic section can be found using Dandelin's construction. Each Dandelin sphere intersects the cone at a circle; let both of these circles define their own planes. The intersections of these two parallel planes with the conic section's plane will be two parallel lines; these lines are the directrices of the conic section.
Examples include the plane, the lateral surface of a cylinder or cone, a conical surface with elliptical directrix, the right conoid, the helicoid, and the tangent developable of a smooth curve in space. A ruled surface can be described as the set of points swept by a moving straight line.
A literature review from 2023 of 31 peer-reviewed articles acknowledged that "there is still no uniformly accepted definition of mental labor in the context of unpaid work," and proposed the ...
Ancient History is really rather like a connect-the-dot puzzle stretched out over 300 pages: and it is to McElroy's credit that the reader wants to find the pattern embedded in all the cleverness and sticks with the novel, encountering along the way some dazzling literary designs and images.
Examples [ edit ] A cone can be generated by moving a line (the generatrix) fixed at the future apex of the cone along a closed curve (the directrix); if that directrix is a circle perpendicular to the line connecting its center to the apex, the motion is rotation around a fixed axis and the resulting shape is a circular cone.
The recent reversals by two US district judges on plans to step down from their seats, effectively denying President-elect Donald Trump the opportunity to replace them, has put attention on other ...