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Viewing profile — IdeaHamstir

IdeaHamstir

HN member
Joined
Tue, Dec 19, 2017, 10:36 PM UTC
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Public activity
19 items

About IdeaHamstir

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Recent public activity

  1. comment
    Comment #16991864

    They have completed designs using low enriched Uranium. They're not quite as elegant or as small, but they should work fine. https://fas.org/nuke/space/leu-reactor.pdf

  2. comment
    Comment #16991832

    It still produces a fair bit of alpha, so avoid particulate ingestion.

  3. comment
    Comment #16492435

    Several orders of magnitude less than Chernobyl. The reactor that lost containment was a gigawatt production plant. A gigawatt nuclear ramjet would be so huge there would be no tro…

  4. comment
    Comment #16478728

    My local utility charges users $5,000 per installed pole for last mile connection. I've priced poles and wire, they are turning a hefty profit for last mile connections.

  5. comment
    Comment #16466292

    > Bringing from Earth a few tons of nuclear-powered jet engine to use water as propellant would take building such an engine first. We're not even close. True, but small scale sola…

  6. comment
    Comment #16215241

    I am not sure if any of these programs are still around, but older, generic forms of insulin are available for free or greatly reduced price at many pharmacies to qualified applica…

  7. comment
    Comment #16108836

    > What is that number? And do we know that the number would be less without these types of regulations? https://en.wikipedia.org/wiki/List_of_military_nuclear_accid... I guess it d…

  8. comment
    Comment #16053752

    > With oxygen, water, and power, we can make food. And carbon, nitrogen, phosphorous, potassium... The lunar surface seems to have these elements in short supply, though C-type ast…

  9. comment
    Comment #16053706

    Falcon 9 was designed to be human rated, hence the Dragon capsule. The lag in certification is probably largely due to Russian/USA politics.

  10. comment
    Comment #15974879

    > "gee, look how wrong these other stats are" I get the feeling that the 1% knows how to hide their wealth from the IRS.

  11. comment
    Comment #15971143

    Fertilizers in general aren't necessarily bad. It is important for us to actively recycle our phosphorous and potassium, because there is no short term replenishment of these vital…

  12. comment
    Comment #15967654

    The vast majority of nitrogen fertilizers are produced by burning natural gas with atmospheric nitrogen to produce NH3, NH3OH and CO2. https://en.wikipedia.org/wiki/Haber_process I…

  13. comment
    Comment #15967387

    Thank you. I will definitely look into this. At the very least, it still makes an effective and fairly high nitrogen organic fertilizer, while drawing down atmospheric CO2. It's so…

  14. comment
    Comment #15967127

    A substantial fraction of the world's natural gas is burned to produce nitrogen fertilizer. This is largely obtained through fracking. Fertilizers, as they are used on the large sc…

  15. comment
    Comment #15967088

    Been there, done that and have read dozens of research papers on azolla as livestock feed, but there hadn't been any human research when I delved into the subject. That was quite a…

  16. comment
    Comment #15967075

    Fry are typically separated from the larger fish with netting. Sure, you could keep them all together, but a huge amount of system resources will be consumed by the endless cycle o…

  17. comment
    Comment #15965374

    Good to know about the possible neurotoxin. Any suggestions for further information on the topic?

  18. comment
    Comment #15965184

    Duckweed is a good tilapia feed, but requires a nitrogen source. Use it to supplement azola, it has around 4% more protein. The problem with tilapia is they reach breeding size lon…

  19. comment
    Comment #15965133

    Azolla = free fish food. It obtains both nitrogen and carbon from the air and can double in mass every 2-3 days. Protein content is 17%. Needs only a few inches of water, sunlight …