Viewing profile — oneiric
oneiric
HN member- Joined
- Thu, Sep 23, 2010, 8:36 PM UTC
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- 62 items
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About oneiric
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Recent public activity
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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
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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).
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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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Comment #16271818
https://www.aifund.ai/