

Na: He’s clearly referring to Niobium. I’m not sure what that has to do with the relationship between a Heads Up Display and this “Department of Housing and Urban Development” thing.
Na: He’s clearly referring to Niobium. I’m not sure what that has to do with the relationship between a Heads Up Display and this “Department of Housing and Urban Development” thing.
Re post text: For context, Washington state is mail-only voting, so that number would (I assume) be for all votes, not just specifically requested mail-ins. I didn’t see it in the article, but I wonder if that is predominantly “centralized” or “distributed” in nature; i.e. are technically-valid ballots from all voters being incorrectly rejected by the county elections facilities office at different rates across racial lines, or are there other factors like targeted disinformation, education, local infrastructure, or socioeconomics that disproportionately affect Black (or other types of minority) voters that would make them more likely to produce a technically-invalid ballot?
Those might get the same statistic, but would seem to indicate very different sorts of problems and approaches.
I think that mental model only works if you imagine the parabolas as reaching to infinity in a finite space so that both ends are parallel, ie having identical vertical slopes of +/- infinity. At that point, easier just to call it “half an ellipse”. To me, it’s much easier to imagine a parabola as the end of an infinitely long ellipse.
Your intuition and the KSP example are correct though. If you imagine the plane and cone for a parabola, you wouldn’t notice any significant change to the shape (at a finite distance) if you tipped the plane ever so slightly into forming an ellipse (or a hyperbola, for that matter) since it’s all smooth changes.
Anyway, the size of the elliptical (I think hyperbolic would have a different sort of energy state) arc that’d be formed by a thrown object would be so large relative to human scale as to basically be infinite, equivalent to a parabola. I imagine the difference might become significant once you are launching something a decent way around the Earth, but with that much energy in play I don’t think it makes much difference where exactly the projectile “lands”.