I have to put this somewhere (because it's too awesome to neglect, even if it is old and has been covered before) so it might as well be here for prosperity. Wubalubadubdub!!!
So
this thread rolled off-topic into a discussion about the severe lack of educational spinning top videos on the internet; particularly relating specifically to Beyblade. I agree that the number of relevant educational spinning top videos is very small and I also agree that many (but certainly not all) of the existing video are of lackluster quality. In a full-on five-minute research and cramming session I pulled like a ninja just momentations after the fact, I came across this video from Disney:
I don't know why this video is from Disney exactly (it's not exactly Up) but I suspect a bunch of students invented a novel algorithm for printing whacky 3D objects with near-perfect weight distribution to be used as spinning tops. Disney (and pretty much everyoe else) often buys ideas like this from students to use in their products (such as movies and toys) but they also use student-sourced technologies in their rides at Disneyland or whatever. So this technology has a wide range of applications which will likely confuse the nuts out of the historians a thousand years from now.
Five points to the person who can locate for me the academic paper they reference in the video. I must have it.
But notice two things about this video. First, the quality is balls. I mean, slow motion is nice and everything but one really must admit that they're just pumping this video out to illustrate the idea rather than sell it. It's an academic video... So who cares, right?
Except the thread I linked to at the start of this post train cares. Fact is: the better your video (no matter what it is about) the more people will watch. If you hit a million views with a bad video, just imagine how many you would have got with a good video. Dopey. Le sigh.
The second thing, obviously, is that this technology would be particularly awesome for designing Beyblades. I mean, jeez, even an inanimate spinning top could imagine the kind of crazy jazz this tech might create. One-sided off-centre single moment-of-inertia Beyblades? Chaos reigns.
Two MORE things from the video. First, the technology addresses the issue of off-centre weight distribution by hollowing out 3D printed objects. Sucks to be anything but a 3D printed object. But on top of that, the technology fails to address the resulting aerodynamic "drag" issues you'll get if you design a whacky top based on a break-dancing armadillo. By creating an asymetrical top, you're likely messing with the aerodynamics of the thing and creating more problems thatn you're solving.
I can imagine solutions to this. Consider that throwing knives don't seem to care about drag and you'll see how a single-hit-point Beyblade might work.
Second, you'll notice the technology is owned by Disney. Not Takara-Tomy, Hasbro or Disruption Entertainment (doing the movie). So... No awesome spinning armadillo Beyblades for you. Urgh, Mondays are the worst.