handol
handol on Hacker News
The detonation produces higher pressure and temperature, causing higher exhaust gas velocities. More energy in the exhaust means more push from the same amount of propellant. About 15% more. The other
yet to be realized in practice advantage is that by eliminating the compressor stages on a rocket engine its construction is simplified, and despite needing a much stronger combustion chamber, it could actually be lighter.
If it can live up to more efficient, cheaper, and lighter then it will certainly see widespread use.
There are bound to be issues with new larger designs, but nothing show stopping is expected.
> Most companies decided to just pull diesel cars from the US market, and it turns out that all of the ones that stayed were tricking the tests in one way or another.
That's just not true. There were three options, stop selling diesels, implement a selective catalytic reduction system, cheat the test. All three were done.
>I'm actually surprised that there isn't more direct action against overly aggressive drivers.
What direction action could a cyclist take on a car driver that intentionally buzzed them while passing? I suppose if you happen to catch up to them at a light you could vandalize their car. Make a habit of doing that and you'll wind up the victim of an unfortunate accident that no one will be punished for.
> A future myth?
Yes, a story about the future that he wants to generate a collective social belief in.
Seems pretty selfish to keep all that money when he could give it back to Meta.
I think it really boils down to, they need a near future myth for investors to speculate their stock price up. That myth is, ubiquitous, always-on AR is just around the corner, and they're going to be the platform it runs on.
What percentage of the population do you think would need be hospitalized for "brutal" to be accurate?
If giving his collaborators credit diminishes his stature, then his stature must have become overblown.
You don't have to look at other industries. Other auto-manufacturers do their testing on test tracks.
Is that simply your impression, or is there trip length data to support that?
> We know what happens to matter at those speeds, it becomes infinitely "heavy" and would experience time in relative light-years (I mean time-to-travel at light speeds) no?
I don't think we do know what happens. Relativistic mass approaches infinity at exactly c. Beyond c we obviously have no data, but if we just apply the same equations the relativistic mass would drop back to a finite value. A finite complex value.
Isn't getting where you're going in less time the whole point of going fast? Why would you want to use a device that made your journey take longer?
> It was never a stipulation of warp drives that they would cause something to move.
The name was lifted from a very well known science fiction universe, where it has exactly that stipulation. As a result it carries that implication for (the vast majority of) readers when it shows up on IFLScience or whatever.
The field can't help being click bait with a name so loaded with implications that the work does not back up.
e.g. that the warp fields studied would be capable of causing something to move.
You can still raise sentient animals for slaughter, it's pretty far from being a legal person. Other animals in the sentient legal category include all vertebrates.
And they rarely need to leave with the Costco and the night club on the roof.
MSNBC and techchrunch aren't 'other' to the category of corporate media
Would you believe that a text-to-speech program was suffering if it told you so?
The quote (referring to a presentation on surface disinfectant studies):
> I asked Bill a question that probably some of you are thinking of, if you're totally into that world, which I find to be very interesting. So, supposing we hit the body with a tremendous—whether it's ultraviolet or just very powerful light—and I think you said that that hasn't been checked, but you're going to test it. And then I said, supposing you brought the light inside the body, which you can do either through the skin or in some other way, and I think you said you're going to test that too. It sounds interesting…
And then I see the disinfectant, where it knocks it out in a minute. One minute. And is there a way we can do something like that, by injection inside or almost a cleaning. Because you see it gets in the lungs and it does a tremendous number on the lungs. So it would be interesting to check that. So, that, you're going to have to use medical doctors with. But it sounds—it sounds interesting to me.
> That conversion is done by a crankshaft and once a crankshaft is in the system ... you get diminished efficiency because you're only getting maximum shove force in the middle of the piston stroke.
I don't think that's right. Why would diminished force when the piston is turning around lead to a power loss?
I think the Tesla "Tiles" of 25 D1 chips are on a single wafer with integrated interconnects. But there is certainly a huge difference in the memory bandwidth claims. Cerebras claims 20PB/s, and Tesla claims 10Tbps.
> Sure, but ditching your 20-year old beater of a car for a new electric one is not viable for a large percentage of the population at the moment, even in the richest countries. Maybe when 20-year old beater EVs are a thing the tide will turn.
That's part of the coordinating as a species problem.
The article seems to treat psychosis, psychotic symptoms, and Schizophrenia as though they all refer to the same thing.
Doesn't that mean that warp drives are not possible? I mean if the device can't produce a driving force why call it a "drive"?
Yes, it gets to terminal velocity pretty quickly, it's decelerating for most of the fall as the atmosphere gets denser.
Estimated kinematics from a prior flight.
https://flightclub.io/result/2d?code=SN91
edit: To clarify, a drop from 100km would not hit terminal velocity quickly, it would accelerate until it got to the thicker lower atmosphere where it would be rapidly slowed.
The difference would be supersonic/hypersonic flight during the fall.
> (10 million watts of electricity)
10 million watt-hours of electricity
Your system would produce 10 million watts if it did 10 million watt-hours per hour.