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handol

327 karma · joined June 25, 2020

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handol··on Laser fusion reactor approaches ‘burning plasma’ milestone
1800 kJ > 100 kJ

Even if they achieve 'burning plasma', it's still like a 100hp engine using an 1800hp spark plug.

handol··on Victoria follows South Australia and imposes electric car road tax
> Thus indeed if you have basically any heavy freight at all on a road, the rest is negligible.

Racetracks don't carry freight, but the surface does goes bad in a couple decades.

handol··on Supersonic Electric Flight
You don't strictly need one. There are designs that rely on exhaust pulse resonance for pressure. There are designs that use various kinds of mechanical valves.

It looks like (propane fuel) tesla valve pulse jets have been built, but I'm not seeing anything flight capable.

https://www.youtube.com/watch?v=JYZhZ_qNKfE

handol··on Full text search on 400M US court cases
It's on the internet forever now. If there's a balance to strike it would have had to have been done in 2007 when the court digitized their records and put them online.

A search for "minor consuming" reveals a few hundred thousand cases against children. I'm a little surprised to see that.

handol··on Full text search on 400M US court cases
Found an assault charge on my Mom from '92.
handol··on Supersonic Electric Flight
>It would still require moving parts though (unless it's only used as a ramjet), since a jet engine has to compress the air before heating it.

You could use a tesla valve for an electric pulse jet, that would make for no moving parts.

handol··on All Hail Geometric Algebra
You can't really get away with just knowing del from vector calculus, as this is the geometric-calculus del. ∇F = ∇ . F + ∇ /\ F

But for defining the terms you're going to need a couple paragraphs to go along with the one equation.

handol··on Texas astronomers revive idea for 'Ultimately Large Telescope' on the moon
I expect it would be much harder to put a mirror factory in orbit than a mirror.
handol··on The Black Hole Information Paradox Comes to an End
> “There’s the physical black hole and then there’s the simulated one in the quantum computer, and there can be a replica wormhole connecting those,” said Douglas Stanford, a theoretical physicist at Stanford and a member of the West Coast team. This idea is an example of a proposal by Maldacena and Leonard Susskind of Stanford in 2013 that quantum entanglement can be thought of as a wormhole. The wormhole, in turn, provides a secret tunnel through which information can escape the interior.

What is this saying? Say we have a method for producing microscopic black holes, and a quantum computer capable of simulating them. What's the experiment we can do to show that this happens? We hit the real thing with a photon and it shows up in the simulation?

handol··on Lentil – Lenses for pathtracers
I think they call them phase addressable full spectrum electromagnetic field emitters in Star Trek.
handol··on When Objects Become Extensions of You
Not especially, but certainly more money than I would light on fire. That would actually be an even more abstract extensions of the self though, incorporating the bike by way of my finances.
handol··on When Objects Become Extensions of You
When my bicycle is subjected to hard bump, even if no part of my body experienced much acceleration, I'll make the same sort of sharp inhale I do if my elbow is subjected to a hard bump. You really do develop the sensation of feeling the road as though your nerves extended down to the tires.
handol··on One pollster’s explanation for why the polls got it wrong
They work well for what seems to be their intended purpose. Providing fodder for political entertainment to the 24hr news networks.
handol··on Artist creates nanosculptures smaller than a human hair (2014)
Specifically: https://en.wikipedia.org/wiki/Multiphoton_lithography
handol··on Artist creates nanosculptures smaller than a human hair (2014)
A part can have features much smaller than it's total size.

One way to think of it is, a part is nanoscale if you would choose nanometers as the length unit on the drawing.

handol··on Learning From Quibi
Quibi seemed to do a lot wrong. But when it comes to how bad their content was, I've seen some writers say Quibi produced first draft scripts other studios had passed on without a re-write. They thought they could run with proof-of-concept quality scripts to avoid hiring writers.
handol··on U.S. undertook cyber operation against Iran as part of effort to secure election
Not in general, but when you do it by writing articles, or posting on message boards, yes absolutely. Advocating for or against a cause by disseminating media is the definition of propaganda.
handol··on New nuclear engine concept could help realize 3-month trips to Mars
Powering those ion thrusters is a bit of a problem at the mass ranges you need for peopled interplanetary flight. Either you have an absolutely enormous solar array, or an absolutely enormous radiator array for your nuclear reactor.
handol··on Thrust Vectoring at Model Scale
Is this missile guidance system a weapon in the eyes of the law?

The feds haven't busted down my friends door for contributing yet.

https://github.com/MuMech/MechJeb2

handol··on Vdx – An intuitive CLI for processing video, powered by FFmpeg
> Ffmpegs documentation

    ffplay --help
8826 lines
handol··on The Hypertext annotated version of “A Fire Upon the Deep” (1993)
I think he says early on that the archive trap doesn't have self-awareness, except for a few subroutines that need to be self-aware like the simulations of the researchers which facilitate the escape. Even the name blight evokes a fungus. I was thinking of it's cruelty to lower civs as analogous to the cruelty of a fungus secreting an antibiotic.

Hunting down the OOBII comes down to the escaped personae having data that could be used against it by another power.

handol··on The Hypertext annotated version of “A Fire Upon the Deep” (1993)
Awesome!

It looks like some files are missing from the photos directory, or maybe the index is just wrong.

handol··on The Hypertext annotated version of “A Fire Upon the Deep” (1993)
Interesting, though it appears EFF no longer has a comments field on their donation form.
handol··on The Hypertext annotated version of “A Fire Upon the Deep” (1993)
It's probably also up to a publisher.
handol··on The Hypertext annotated version of “A Fire Upon the Deep” (1993)
The other post Brad made that day he references: https://groups.google.com/g/rec.arts.sf.written/c/pbuT5Xty9Q...
handol··on The Hypertext annotated version of “A Fire Upon the Deep” (1993)
The CD-ROM is available in two libraries https://www.worldcat.org/title/hugo-and-nebula-anthology-199... but cannot be checked out.
handol··on Former Google CEO Calls Social Networks ‘Amplifiers for Idiots’
Because there is something about the Apple product they want, that they can't get somewhere else.
handol··on London Pneumatic Despatch Company
I meant in the 1860s.
handol··on London Pneumatic Despatch Company
Automated switching wouldn't even be needed, router could have been a job title.
handol··on Gravity is not a force – free-fall parabolas are straight lines in spacetime
There's no emitting magnetic fields, no diverging fields allowed. The right analogy is between mass and electric charge, only mass is limited to positive values.
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