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J.C.MacSwell

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Everything posted by J.C.MacSwell

  1. There's gotta be a few that would simply claim He provided a nice nest of fertilized chicken eggs...
  2. ...requiring 36 times the input power, plus associated losses etc, to get your 36 times the power...
  3. That might also mitigate some problems by putting the gravitational stresses more in tune with our naturally evolved rhythms, at least to some extent. The rotating pod could be inside the greater hull, such that no rotating seal, or seal of any kind for that matter, would be required. Thereby, it could be fairly open, and use an accelerating assist from "stationary" hull to get inside. ...or simply have the pod come to a halt, you get in, and slowly bring you up to speed.
  4. Interesting that they refer to sleep modules. Humans tend to fight gravity by day and attempt to negate it when sleeping at night by lying down. If you only had access to the module for sleep do you sleep standing up to give your long bones the much needed longitudinal stresses? Or is that taking away too much from the relaxation required for the cardiovascular system? What other effects should be considered?
  5. Pretty glaring emission...
  6. Thanks Studiot. I was questioning to find out, and assuming you knew something I did not. So is V=IR simply not applicable (won't get you anywhere) or actually wrong in principal? I always assumed it was always correct, just that the resistance might vary in a way that it made it not useful.
  7. Are you referring to the fact that it is possible for R to vary with the current, or are you referring to possible circuits where V = IR does not hold?
  8. I had thought you were complicating it unnecessarily but you actually had the significant factor. It is easy to see by Arc's animation that the extra distance due to the lugs is having almost no effect. It is (mostly) created and disappears above the ground, and any grip it might have would be negated by the much greater contact of the flat area gripping the ground. (essentially what you said in your second post)
  9. This, the bolded, was my thinking but since there is no ground contact in way of the sprocket I think Benders interpretation is correct. There may be a (very) small effect, but it really doesn't work like my "simple setup" I described earlier. +1 to Bender and Arc also for the animation, it may not be an exact representation but sufficient for me to see where I was wrong.
  10. Would you see it if there were enough lugs that the main belt never touched the asphalt, just the lugs?
  11. Did you miss the "unless they sink into the asphalt completely", or can you not really picture the difference increasing the length of the lugs would make?
  12. OK, picture a simple set up with 2 wheels in line. Add an infinitely thin belt and the distance a wheel travels in one turn with no slip, on ground or wheel, does not change...now keep adding thickness to the belt until you recognize how it changes the distance. None of the increase is on, or due to, the flat.
  13. Slip would be one of the compensating mechanisms I alluded to. The flat part has no effect on the gear ratio if you assume no slip or deformation (the even bending of the belt where it turns notwithstanding). The extra distance effect is all at the radii.
  14. The deeper and greater the number of lugs should increase the distance travelled during each complete cycle of the track, similar to how a thicker track belt would, unless they sink into the asphalt completely or there is some other compensating mechanism...so it should effect the final drive ratio. Compare a new snow tire to one with the tread worn down and which gives you a wheel of greater diameter.
  15. Entering inside the event horizon of a large enough blackhole the conditions should exist to allow you to temporarily exist, be still alive. You should be able to turn your flashlight on.
  16. I'm working on a Theory of Pa: Solitaryverse, based on unclegravity. But it is half baked at best and not near ready for Speculations.
  17. If, simultaneously in a vacuum, you dropped 1000 empty egg shells and one egg would they not all hit at the same time? If you glued all 1000 egg shells together, giving them more mass than one egg, would they then fall faster?
  18. You can reorientate yourself in space, but without pushing against something external or jettisoning something internal you can't change your angular momentum. So if you start with none in an isolated system that system will never have any.
  19. We need to photoshop a horse into the passenger seat of Elon Musk's car...
  20. Hi Koti Sorry. I meant to type angular momentum where I typed angular motion. You can't change the angular momentum of an isolated system. What I meant by the appearance of spinning is, for instance, you could spin the surface of a ball one way with the inside spinning the opposite, giving the appearance that the ball itself is spinning with the ball/system having no net spin.
  21. If say a very large mass (ideally infinite) was used outside the system to provide the angular momentum, the energy could come from within the system. This would provide the angular momentum without the energy coming from outside. The mass and gravitational potential would therefore not change. Unfortunately you cannot get the system/ball to actually spin if you mean this to come from within the system/ball . You could get the appearance of spinning but no change in angular motion from within. This is different from what I had suggested earlier with the energy coming from within, but by necessity the system/ball has to be open to external forces for the reason Swansont mentioned Have to be a little careful describing what is within a system vs what is within a frame, and the context implied or assumed
  22. Also of course, if the energy comes from inside the ball/system there will be no net change of energy and no increase in gravitational potential or inertia.
  23. Unless the energy leaves the system, or gets repositioned within the system, there should be no change. (Or is that your point?)
  24. The gravitational potential will increase due to the spin, as will the rest mass of the ball/system. The rest mass and relativistic mass will increase due to the sum of the increased relativistic masses of it's parts. In it's rest frame the rest mass and relativistic mass is the same thing though.
  25. Yeah. Go Physics! An early sting or bite should surely keep them from too much focus on Biology...
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