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Cake day: June 5th, 2023

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  • The last bit about the big bang isn’t really how it works to my understanding. The big bang is compared to an explosion, but its actually more like a balloon inflating, if you imagine the surface of the balloon as analogous to space. The galaxies don’t all move away from some original center to the universe, new bits of space get “added” in between every bit of space, so that every object gets farther away from every other object. If you go backwards in time far enough, every point sees itself as being the center. At least, that’s how I’ve seen it explained.


  • The issue with ICBM interception as I understand it is that it’s one of those cases where the economics heavily favor the attacker. An intercept missile requires a rocket just as capable the one launching the target, if not more so. But, you can’t afford letting even a few nukes get through, even one is devasting, so given that the chance of a successful intercept isn’t 100 percent (my understanding is that it’s well below 100% currently, for likely real world conditions), you need several intercept missiles for every missile your enemy has. Any countermeasures that make taking the enemy missile out harder, like deploying decoys or such, increases the needed resources on your end far more than it increases the resources used by them.

    It might be viable against countries like North Korea where the difference in resources is vast enough, but against any serious opponent like Russia or China, it’s not likely to work out.


  • CarbonIceDragon@pawb.socialto196@lemmy.blahaj.zoneRule
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    3 days ago

    It’s one some people who both identify as aromantic and asexual use. I’ve seen some people who prefer it to using the flags for both of those things separately because they preferred to think of their orientation as a singular thing rather than breaking it down into sexual and romantic attraction, though not everyone that uses it rather than both the ace and aro flags it does so for that reason.



  • It is fundamentally less efficient to run electrolysis on water to produce hydrogen, and then reverse the process again in a fuel cell to produce electricity to turn a motor, vs taking the electricity used for that electrolysis and storing it in a battery that is then taken back out to turn a motor. Granted, modern lithium battery chemistry isn’t the cleanest thing to extract and use, but it’s also not the only possible battery chemistry, just the one currently most used for vehicle batteries. It also doesn’t allow for certain benefits to BEV like home charging (I mean technically one could run a hydrogen line to one’s house, but that doesn’t seem likely). The only scenario I can think of for hydrogen cars taking off is if the needed infrastructure was built out for something else and so was readily available. I could maybe see that if hydrogen ends up getting used as the solution for decarbonized aviation fuel, but my understanding was that it (along with basically every other proposed tech for that admittedly) had some pretty serious cost drawbacks and so there’s no garuntee of it getting built out for even that application.








  • I assume that the whole “Stalin starved his people” thing isn’t talking about the average conditions of the Soviet Union during more “normal” times, but rather specific events of mass starvation like the Holodomor. That being said, famine caused by accidental or malicious management of agriculture is something hardly unique to any single economic system (I imagine a comparison could be made to the Irish potato famine there, for an example of a similar type of disaster under a different economic system), so I’m not sure if it reflects entirely on the kind of system the Soviets were going for as much as it does mistakes in the process of transitioning to that system, and malfeasance on the part of those in charge in pushing the consequences of those mistakes upon disfavored groups.








  • I’ll believe it when they actually generate net electricity output. I don’t necessarily think they’re a scam per se, but given the relative resources available and difficulty even for international projects to get fusion power working, I don’t suspect their efforts will be successful. Would love to be proven wrong of course, or if not for their work to at least contribute useful progress to the effort.