It seems like trucks are a use case where battery swapping would make a lot of sense. Unlike with cars, the battery doesn't need to be a structural element, and there's much less need for it to be a strange shape, as in some cars.
I'm British, but when submitting papers for blind review, always use American spelling for obvious reasons. I suppose I could change it after acceptance, but that would just be pretentious.
I've used bubblesort when simulating LEO satellite constellations, calculating which satellite is closest to a location. I used one single backwards pass of bubblesort, so O(n) every k timesteps to bring the closest to the head of the array, then every timestep just do one backwards bubblesort pass over the first few in the array. Given satellites move smoothly, if you initialize right (a few full passes at the start to get the closest few at the front) and get the constants right so a satellite outside the front few in the array can't have moved far enough to become closest without being promoted to the front few by a periodic full pass, then you always maintain the closest at the front of the array very cheaply. And this has the advantage of also being very simple to code.
I use them regularly and have never had anyone not accept them.
I have had many places reject $100 bills though.
I’m that weirdo that tries to pay cash for most everything, so sample size is large and across a diverse set of businesses.
Due to what I tend to pay cash for these days (lunches, drinks with a friend, etc.) and prices being what they are, they are rapidly becoming my “go-to” denomination.
It's definitely possible to break the rules. In fact, to give a truly outstanding talk that everyone remembers, you probably have to break the rules (speaking as someone who coded an entire Sigcomm presentation in a 3d game engine). But most early career researchers, for whom this advice is presumably intended, are not good enough at giving talks for that to be a good idea. In fact most tenured professors aren't too. If you do break the rules, you need to have a very clear idea in your head as to how you're going to pull it off, and a good idea of who your audience is and how they'll perceive it, and those are both hard to achieve without a lot of experience.
If you have two pipes of the same height, one filled with fresh water and one with salt water, the pressure will be greater at the bottom of the salt-water pipe because salt-water is denser. Connect them at the bottom with a pipe and water will flow from salt to fresh until the pressures equalize. But connect them with a membrane, and this is countered by the osmotic pressure of fresh water trying to get to salt water, so you don't get any magic flow for free. You have however got a pressure gradient for free - just not enough to desalinate.
If you put this in the ocean, you can remove the salt pipe and get the same effect. But if you want continuous fresh water, you need to further increase the pressure difference across the membrane by continuously lowering the height of the fresh-water column by pumping water up and out of the top. That takes energy, but not as much as it would take if we had to raise the pressure on the salt-water side.
The British Listed Buildings site has photos of the fort and boat approach with stairs, picking crane, and sloped ladder lift for getting loads from water to gate.
