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Viewing profile — oneiric

oneiric

HN member
Joined
Thu, Sep 23, 2010, 8:36 PM UTC
HN karma
206
Public activity
62 items

About oneiric

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Recent public activity

  1. comment
    Comment #46350054

    The fluid in high pressure storage is a liquid, making the storage much cheaper. Liquid N2 (most of air) would require over 40 times more pressure or cold temperatures. Purifying o…

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    Comment #35655402

    The Hungry Judge Effect has been debunked. Not that your larger point is not valid.

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    Comment #31814756

    Also 2019

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    Comment #19900411

    https://www.hermeus.com

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    Comment #19693075

    For even more detail, there is a book. http://www.madisonholleranfoundation.org

  11. comment
    Comment #19693060

    http://suicidepreventionlifeline.org https://afsp.org http://www.madisonholleranfoundation.org

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    Comment #17106460

    About the "faster and faster" remark, turbines will only get to about double their nominal speed without load (called runaway).

  15. comment
    Comment #17070936

    A Russian hydroelectric turbine (not too different from a flywheel) stored horizontally in a "vault" (a dam) killed 75 people. https://en.wikipedia.org/wiki/2009_Sayano%E2%80%93Shu…

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    Comment #17070840

    Modern flywheels spin extremely fast in a vacuum, so supersonic is moot.

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    Comment #17070793

    That is not a flywheel.

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    Comment #17070777

    You are missing something (but don't worry, it is good to brainstorm like this). At maximum speed (maximum energy storage) you want every part of the flywheel to be about to break.…

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    Comment #17070756

    Carbon fiber composite (not exactly plastic) is strong and light, which is what you want for a flywheel. There a few more relevant expressions for flywheels to express that you wan…

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    Comment #16757806

    Link from last year https://news.ycombinator.com/item?id=13099135 and two years ago https://news.ycombinator.com/item?id=11937847

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    Comment #16535216

    I remember getting a wide band oxygen sensor and tuning the gain in the new ECU (and by tuning I mean eventually realizing turning it all the way up minimizes steady state error). …

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    Comment #16526850

    Hey stergios, I replaced your (DOS?) code with a modern aftermarket ECU.

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  25. comment
    Comment #16271818

    https://www.aifund.ai/