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Joined 2 years ago
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Cake day: July 10th, 2023

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  • Article is capped at 18 views/day so can’t see numbers.

    But theoretical cap of energy would be something like E_kin = (\gamma -1)mc². Without knowing anything about the mission or engine, a 50 kg probe at a velocity of .9 c means an energy requirement of about 1,0e19 J.

    Fusion of H2 to H3 yields about 340e9 J/g meaning we need about 3 million kg of fuel at 100% conversion rate, or a third if we manage He3 reaction.

    Realistically heating, engine efficiency, deceleration, vibrational damping and such would probably lower efficiency to at most 40% and we end up at 8 million kg of fuel to propel a 50 kg payload (not counting the fuel mass).

    Seems unfeasible.

    Edit as @i_have_no_enemies@lemmy.world kindly provided an alternative link.

    Article only says doubly efficient, and H2 to He3 reaction.

    To get to .9c we still need a couple million kg of fuel.

    Even .1c needs about 40 000 kg of fuel, which is doable, but probably unfeasible.

    0,05c should be in kgs range, and is probably plenty (100 km/s).


  • Why don’t realtors share their closing prices? Seems like a good marketing tactic - “look how much I can get you for this thing”.

    You could also take a look at listing prices for land of different types. Or even just call realtors and say you’re interested in buying something similar to yours and ask what the range is for them.

    You could probably also buy this data from a data broker for cheap.

    EtA, you could probably also hire someone on fiverr or upwork to do this research.









  • You’re not wrong, but I don’t see the relevance to the topic? Unless this is part of the public revolt?

    Organising to protect immigrants in your area is admirable, but how do you get rid of the necessity to do that? You’ll have to replace the politicians, no?

    And you’ll probably need to be revolution sized and well organised to be able to do that when they ignore any procedure or deal that doesn’t benefit them in the specific moment.





  • I see basically three ways out:

    1. Democrats/someones sane win overwhelming majority for long enough to harden procedures, cement effective enforcement, and subversion proof the whole system, while not succumbing to their own corruption. Seems incredibly unlikely.

    2. Autocracy and/or persecution of political rivals, where dissenters “fall out windows” a lot or the legislative body is replaced, until stability reforms and new norms can be reintroduced. Seems most likely currently, and has several contemporary examples.

    3. Revolt, public and/or military, throwing out all the politicians and imposing exile or lynching of the offending politicians. Seems improbable, and especially to unite enough to throw out all the bad behaviour. Also will lead to a junta, civil strife and/or provisional government which come with their own slew of issues and corruption.

    4. The Republicans grow a sense of decorum to protect the less privileged party. I can’t imagine this happening without basically a GOP-internal pogrom under a strongman, but Republican conservatism pulls a strongman in the opposite direction. Unless perhaps they’re some kind of upstanding teocrat perhaps?

    This is all wild and slightly saddening speculation, please feel free to suggest other paths!