skillissuer

GLSDB is cheaper than regular GMLRS rocket. ramjet 155mm is prototype. there's another obscure 155mm ammunition called vulcano that basically packs smaller HE sabot round in 155mm, trading off payload for range, ramjet takes it even further

russia and nk uses 152mm, not 155mm

not when there's a shortage

robots, satellites, or for that matter fighter jets or artillery can't hold ground, all these units work in support of infantry. the future belongs to what we already have: combined arms warfare

elsevier doesn't want you to know that, but you can download sum total of human knowledge for free. i have 3924 papers

sci-hub and libgen already outputs list of torrents. do they also archive supplementary information? that's where most of actual interesting data is, sometimes it's open source, sometimes it's not. (at least in my field)

yeah it's even out there as a list of torrents

you're thinking of scihub. if you have some 130 TB? of spare storage you can mirror their entire repository

whereisscihub.now.sh

.se worked last time i've checked

not exactly, because if someone finds out that high temperature superconductor works even better at 4K, then it will be running at 4K, making entire thing more compact or allowing for higher fields

how much do you need to float, if it's helium then 1L lifts about 1g of mass, if it's 50% helium 50% air it lifts 0.5g per liter, then it depends on how heavy balloon is in relation to its volume

i've took time to actually look up various manufacturers' datasheets and it's: range 50-99%, 95%, 97%, range 95-100%, 99%, unspecified or just data for pure helium. at this point i'm pretty sure there's no such thing as "balloon gas manufacturer", everyone buys 4N+ cryogenic helium and balloon gas consists of odds and ends that come from flushing piping and empty bottles with better stuff