jhgb

48 ms·

511.
by jhgb 5y ago
Starlinks are pizzabox-shaped. That's a terrible shape to launch unless you have a stack of them, and this won't be able to launch a stack of them. As for barrel wear...it's possible that that would be higher than for a nor
512.
by jhgb 5y ago
I think this is a nice example of why the folded surface of our brain matters so much.
513.
by jhgb 5y ago
Here's the thing: If you built something like Quicklaunch instead ( https://en.wikipedia.org/wiki/Quicklaunch ), your g forces would already be an order of magnitude lower. So the question is, why not do that inst
514.
by jhgb 5y ago
It means you're Donald Knuth and you've just released TeX 3.
515.
by jhgb 5y ago
> slavery was considered unethical, even if only by some, back then The notion of slavery being unethical had been many centuries old at that time.
516.
by jhgb 5y ago
It probably depends on what GC you're talking about. You plain old copying semi-space or or mark-and-sweep GC will be fairly dumb, but some modern ones like Metronome or C4 are pretty smart.
517.
by jhgb 5y ago
> It is strange that there are no pictures of this device. You'd be petrified to see it.
518.
by jhgb 5y ago
What I meant was that the buses are provided if there's no other option, like another train.
519.
by jhgb 5y ago
> the train will often just stop at some station and the passengers are told "the train ends here". They then have to figure out their journey using alternative trains. In the Czech Republic, what would happen in that case woul
520.
by jhgb 5y ago
Russia is ahead of the US, even in absolute tonne-km terms. And I don't know about other EU countries, but we (Czech Republic) seem to be transporting almost exactly as many tonnes per capita per year as the US, despite the fact that w
521.
by jhgb 5y ago
> I pickup the one and only container of honey You don't have at least forest honey and meadow honey? That seems rough.
522.
by jhgb 5y ago
If by "battery", you mean "a primary or secondary electrochemical cell or cells", as is its usual meaning, then it's not.
523.
by jhgb 5y ago
> By definition, low taxes are not a subsidy. The conspicuous lack of Pigouvian taxes on a fossil fuel for just one industry is definitely a subsidy. Someone else is paying for the externalities.
524.
by jhgb 5y ago
That doesn't seem applicable unless there are bigger problems to solve that are being ignored.
525.
by jhgb 5y ago
Ban people from manual driving on public roads and even highways could work with lighter vehicles with less passive safety. Of course that might be more of an long-term outlook, as in "late this century", but it seems like an opti
526.
by jhgb 5y ago
Getting arbitrary libraries to build is IMO quite often challenging even if you're not compiling for WebAssembly.
527.
by jhgb 5y ago
This is exactly what I needed. Thanks!
528.
by jhgb 5y ago
It would make sense to have a range extender as an option. But real-world statistics about PHEV usage patterns have been discouraging. ( https://www.electrive.com/2020/09/28/phev-real-world-consump... )
529.
by jhgb 5y ago
I'm not sure where you got that we need 1B of such vehicles. We won't. But of all the vehicles that will remain, I'm willing to bet that almost all will be EVs. Even if there will be a fraction of vehicles on the roads compar
530.
by jhgb 5y ago
But mass adoption of EVs, percentage wise, is absolutely required. I don't see how the alternative of keeping ICE vehicles is sustainable.
531.
by jhgb 5y ago
Gotthard Base Tunnel is rated for 140 mph, not quite 200 mph but close. It has a maximum depth of 8000 feet. Would something like this qualify for the route across the mountains? Optimal train path would probably be somewhat different from
532.
by jhgb 5y ago
Quite interesting. I though this would be about DART ( https://en.wikipedia.org/wiki/Dynamic_Analysis_and_Replannin... ), but I take it that this is more about front line stuff.
533.
by jhgb 5y ago
I believe a better analogy would be telling someone to put on some leeches to stave off the Black Death.
534.
by jhgb 5y ago
For comparison, assuming a "business as usual" situation in the solar power industry, the electricity output of five thousand 3GWt nuclear units would be reached around 2040 (maybe 2035 if the long-term annual growth factor of 30%
535.
by jhgb 5y ago
> Humans can do some cool things when we decide to. And scaling solar isn't as easy as it sounds. Weirdly enough, we're already currently annually installing so much solar power (in terms of actual energy output, not just namep
536.
by jhgb 5y ago
No need to do the math: https://www.sciencedirect.com/science/article/pii/S001429211... It's ultimately inevitable.
537.
by jhgb 5y ago
> But according to this, the US is third behind China and Russia on rail ton-miles That's awesome if you're not interested in carrying people, but whether a network incapable of carrying people is "a decent rail network&q
538.
by jhgb 5y ago
I assume it's usually the younger, higher scored potential organ recipients, even in your own country.
539.
by jhgb 5y ago
I'm pretty sure we also don't have equal rail density in all regions. So this is just the average. Nevertheless I'm not sure how this can swing a factor of two hundred. (If I use rail length per capita instead, which somewhat
540.
by jhgb 5y ago
> America has a decent rail network According to what metrics? For example my country has over five times greater length of railway network per unit of area. For electrified rail, which is increasingly important for sustainability reason

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