so, now, I guess, you know what one of the problems is with "sim-based ed" ... or, at least, sim-based orbital mechanics, which I have never used.
PS: what RK below-said about Leibniz is dumb, vis-a-vu Nude-ton.
> > Venus is a completely [100%] variable star; so,
> Is your fully interactive 3D orbital simulator broken, or is it merely
> A half smart 5th grader could run a PC/MAC based orbital simulator,
thus: always to fight the reification of fuzzee Q math, a la the predominant Copenhagenskool of everything & the undead cat -- meow; am I dead/yet/or/not/isthataquantuminyourrocket?... so, if *Minkowski* had lived, longer, he would have seen through the endless hype of timespace, which is merely phase-space, as used in electronics, lagrangians, hamiltonians & quaternions -- the original timespace via Lancsoz' -Variational Mechanics_ (Dover Pubs.), AFAIK with my vast pedagogical resources. EPR dyssolves, when Minkowski's dictum is seen as an extemporaneious exhuberance; he was really good with n-dim. discrete math, though.
> So why was it that Einstein took the lead in seeing gravitation as a > manifestation of curvature in the spacetime manifold? Hilbert did not > do that first. He did it better, though because he was the better > mathematician. Feynman pointed out in volume two of his famous set of > lectures, that mathematicians for all their smarts generally do not > advance physics. Newton was a major exception. He co-invented calculus > to deal with motion. His motivation was physics, not mathematics. > Leibniz also invented calculus but he did not originate any major > theories of physics. > > Maxwell was another brilliant mathematican but he was a physicist first. > I think if Maxwell had lived another ten years he would have > accomplished what Lorentz did and who would have derived the dependence > of time on velocity. Maxwell, by 1865 was moving away from aether (he > domoted aether to a pedagoical concept, a mind trick, as it were). If he > had lived long enough he would have got to where Lorentz and Poincare > got, but earlier. It was Maxwell's approach that inspired Einstein.
thus quoth: Darfur is Sudan's poorest, wildest region. One of the Islamic World's first anti-colonial movements, known in the west as the Dervishes, burst from the wastes of Darfur in the 1880s. Led by the fiery "Mahdi," the Dervishes drove the British imperialists from Sudan, an event immortalized in the splendid Victorian novel, Four Feathers. The Dervishes took Khartoum, slaying Britain's proconsul, Sir Charles "Chinese" Gordon. The "martyred" Gordon's death roused a storm in Britain, resulting in a punitive army sent up the Nile (including the young Winston Churchill) that destroyed the Dervish army at Omdurman. But remote Darfur remained a hotbed of rebellion. Arms and money http://groups.google.com/group/soc.culture.iranian/browse_thread/thread/f47126a9738aa095/fa18c870c2c9126f?hl=en&lnk=st&q=darfur#fa18c870c2c9126f
thus: otherwise, coal's a very (?) important feedstock. so, what is the sustainable production of natural gas & natural oil?... Atoms, Machiavelli, Machiavelli & Oil need a figure for the venture ads!... coal, we know from its pre-fossil formations, to be produced catastrophically; the burial of whole, swampy ecosystems. Yucca Flats is a farce majeur, even if there's any thing left to bury, by the time it'd open, or by noon, Pacific Time.
thus: the Brooklyn Bridge is a powerful metaphor, but it has to be told in the context of its manifestation as David McCullough's first production for PBS: his first, big SALE, in other word, to the "eastern liberal establishment" of Wall Street, the District of Columbia and protege Ken "Civil War Jazzbo" Burns.
thus: so, did you recalibrate the orbital constraints in your JPL publicdomain trajectories, to include the phasal parameter "as 'seen' from Earth?..." was Venus closer to conjunction or opposition to Earth, during those alleged missions?... > Where's Venus (from orbit or surface EVA) as > of missions A-11, A-14 and A-16?