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Unbelievable Adventures has been moved to a more proper place in the story. Begin reading at strip 175
Matt Forcum of Robot Beach was nice enough to offer to do a guest strip. He’ll be doing a comic for the next Marooned book, so this was some nice practice for him! Matt’s strip Robot Beach really is a lot of fun and has been nicely hitting its stride lately. If you haven’t already, make sure to go and check it out
And thank Matt for such a nice guest strip, I think he did a fine job! Thanks Matt!
Weebles were a toy from the 70’s that were fairly popular. The salient point here was that they couldn’t be knocked over, they always ended up standing. Kind of fun in those days. Apparently the Nanoganics scientists were inspired enough to build the concept into Asimov!
A Weeble is shaped like an egg—in order for the physics principles to work as intended, the shape must have a bottom which is a more or less smooth (unfaceted) hemisphere (to allow the Weeble to roll) and from the central vertical axis the shape must be nearly cylindrically symmetrical (that is, any plane cut through the vertical axis line must produce close to the same profile). Next, the shape must be filled with two basic types of unmixed solids, and the volume of the lighter solid must be greater than that of the heavier solid. Next, the overall shape must have constant positive curvature. Next, the relationship between the heavy solid and the light solid must be such that any orientation of the object off of the vertical axis line must cause the object’s centroid to raise and to become offset. Lastly, the object must have only one position in which it can achieve stable mechanical equilibrium.
Combining these characteristics produces a basic Weeble. In theory, it is not possible to have a Weeble with a centroid that is too low to achieve a stable mechanical equilibrium.
See them in action!