> "Zoom into this image so that the width of each vertical line is 1 mm or the whole image is 3.2 inches wide."
>
> Is it possible to pick one system? Also, "3.2 inches" is difficult to measure. Rulers that measure in less than an inch use fractions, not decimals. It usually goes by 1/8ths, then 1/4 and 1/2, but some rulers have 1/16ths. 3/16" is .187 inches which is pretty close I guess.
decimal inch rulers (& tape measures) are available; i have several. imo they're much more useful than fractional rulers in the context of machining, where the natural base unit, if you're not in metric, is 0.001” ('one thou')
> SpaceX has made it to MI complex status, and US gov will easily bail them out should worst come.
immaterial: "the worst" here is elon destroying the engineering culture & with it their ability to keep improving on what they've done so far. not going bankrupt (by way of a bailout or otherwise) is a necessary condition for avoiding the worst (boeing syndrome), but it's not sufficient
fedgov can pour money into the military industrial complex, but it can't do a whole lot more, and that only goes so far
tesla booked musk's much-discussed options package as a $2.5 billion expense. opportunity cost aside, it's silly to imply that a public company isn't going to act differently after it's stuck a significant fraction of its revenue on the wrong side of its balance sheet: analysts definitely will be.
the discrepancy between solar & atomic time is noisy & irregular; the past several decades have introduced comparatively less deviation & have required fewer leap seconds as a result
I live in Philadelphia & have family & friends in DC, NYC, & eastern MA. Amtrak is my most frequent mode of travel for distances over 20km by an order of magnitude.
