Cancer Posted April 17, 2013 Report Share Posted April 17, 2013 Oh, certainly: everyone learned their math out of Euclid. If you go reading a lot of the treatises from that era ... Kepler and Newton I know from reading them ... all of the arguments and developments are of a geometric nature based out of Euclid. Kepler's 2nd Law (equal areas swept out in equal intervals of time) was framed that way. It is identical to the law of conservation of angular momentum in what it says about how planets move around their orbits. The latter is formed in terms of infinitesimals (at all times the rate of change of L, where L-vector = r-vector cross-product v-vector, = 0) in the calculus-based way mechanics is taught now. The geometric methods are sort of cumbersome, and hard to generalize to other situations (systems of more than two objects in mutual orbits, for instance). They struggled, though, with infinite sums of infinitesimal elements, as the infamous Zeno's Paradox shows. Quote Link to comment Share on other sites More sharing options...
Bazza Posted April 18, 2013 Author Report Share Posted April 18, 2013 infamous? that is famous, not infamous. Quote Link to comment Share on other sites More sharing options...
Cancer Posted April 18, 2013 Report Share Posted April 18, 2013 Well, if you let the arguments in the classical statement of the paradox confuse you, you have utterly no hope of passing a calculus class. And there do seem to be people who let those arguments confuse them, and predictable carnage happens when they try taking calculus. Quote Link to comment Share on other sites More sharing options...
L. Marcus Posted April 18, 2013 Report Share Posted April 18, 2013 Carnage!! Quote Link to comment Share on other sites More sharing options...
Bazza Posted April 19, 2013 Author Report Share Posted April 19, 2013 so what's people doing this weekend? Quote Link to comment Share on other sites More sharing options...
Cancer Posted April 19, 2013 Report Share Posted April 19, 2013 Ideally, sleep a lot. I have doubts whether that will be permitted. Quote Link to comment Share on other sites More sharing options...
L. Marcus Posted April 19, 2013 Report Share Posted April 19, 2013 Worked tonight, gonna go work in the morning. Other than that, see The Avengers again, and sleep. Quote Link to comment Share on other sites More sharing options...
Bazza Posted April 19, 2013 Author Report Share Posted April 19, 2013 h that reminds me to see IM 1, 2 & Avengers again over the weekend until Tuesday. Planning on seeing IM3 on Wednesday. Quote Link to comment Share on other sites More sharing options...
Cancer Posted April 21, 2013 Report Share Posted April 21, 2013 So far, some sleep, a little gaming, a bit of cooking and cleanup, ... more sleeping and gaming are called for. Quote Link to comment Share on other sites More sharing options...
L. Marcus Posted April 21, 2013 Report Share Posted April 21, 2013 I slept almost twelve hours last night. I slept just four hour the night before, so that might explain it. Quote Link to comment Share on other sites More sharing options...
Cancer Posted April 21, 2013 Report Share Posted April 21, 2013 Another twenty hours of sleep in the next twenty-four and you'll be about caught up. Quote Link to comment Share on other sites More sharing options...
L. Marcus Posted April 21, 2013 Report Share Posted April 21, 2013 Sounds unlikely. Gotta get up at six, and be at the infections clinic at eight. Quote Link to comment Share on other sites More sharing options...
Cancer Posted April 21, 2013 Report Share Posted April 21, 2013 You're falling behind, then. Quote Link to comment Share on other sites More sharing options...
Bazza Posted April 22, 2013 Author Report Share Posted April 22, 2013 falling behind on sleep. Quote Link to comment Share on other sites More sharing options...
L. Marcus Posted April 22, 2013 Report Share Posted April 22, 2013 Can't have that. Quote Link to comment Share on other sites More sharing options...
Bazza Posted April 22, 2013 Author Report Share Posted April 22, 2013 unless you fall out of bed. Quote Link to comment Share on other sites More sharing options...
L. Marcus Posted April 22, 2013 Report Share Posted April 22, 2013 My bed is wide, and so am I! Quote Link to comment Share on other sites More sharing options...
Cancer Posted April 22, 2013 Report Share Posted April 22, 2013 Good stability against rotations, then. Quote Link to comment Share on other sites More sharing options...
L. Marcus Posted April 22, 2013 Report Share Posted April 22, 2013 Angular momentum is the thing. Quote Link to comment Share on other sites More sharing options...
Cancer Posted April 22, 2013 Report Share Posted April 22, 2013 "A body at rest tends to remain at rest." Unless it has kids (or pets) that wake it up earlier than it wants to be woken. Quote Link to comment Share on other sites More sharing options...
L. Marcus Posted April 22, 2013 Report Share Posted April 22, 2013 Outside interference, just like in hockey. Quote Link to comment Share on other sites More sharing options...
Cancer Posted April 22, 2013 Report Share Posted April 22, 2013 Yeah, but two minutes in the penalty box doesn't gain you much in the way of sleep. Quote Link to comment Share on other sites More sharing options...
L. Marcus Posted April 22, 2013 Report Share Posted April 22, 2013 That's why you've gotta go for a match penalty! Quote Link to comment Share on other sites More sharing options...
Bazza Posted April 23, 2013 Author Report Share Posted April 23, 2013 listening to I touch myself. Quote Link to comment Share on other sites More sharing options...
Cancer Posted April 23, 2013 Report Share Posted April 23, 2013 La la la, not listening ... yeesh, that's way TMI. Quote Link to comment Share on other sites More sharing options...
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