wnkrshm

54 ms·

541.
by wnkrshm 9y ago
Lasers also make for horrible terror weapons. A scanner set up on some rooftop could cripple the sight of hundreds of people. Good that externalities such as cooling and power supply make that hard to achieve.
542.
by wnkrshm 9y ago
Intermittent street lights reduce the adaptation though and add glare - the human visual range for scotopic ('dark adapted') and mesopic (twilight conditions) vision is about 4 orders of magnitude of luminance (cd/m²) that th
543.
by wnkrshm 9y ago
Well... after the car hit her there's no obstacle anymore. If there is no provision to detect an accident and then cancel the route to drive it's natural that the car doesn't stop, since the obstacle is now behind it. It&#x27
544.
by wnkrshm 9y ago
LIDAR still has a signal to noise ratio that limits it though, especially with materials that reflect little with the wavelength used (usually NIR, somewhere around 980nm, the military uses 1500 because it's more eye-safe). But even th
545.
by wnkrshm 9y ago
You have to bet on being among the first to be revived, i.e. to have one of the highest taking bounties but not the highest. You don't want to be the first but you want to be the tenth or so. Once the process takes off all the bounties
546.
by wnkrshm 9y ago
Exactly, that feeling of asphyxiation you get when you hold your breath is not because of low oxygen levels - your body doesn't know about those - but high CO2 concentration.
547.
by wnkrshm 9y ago
It's statistics, if the probability of zero bystanders killed gets higher, it's easier to justify a strike to oneself and to others without being held responsible. It gets easier to justify to the public and the world. "It wa
548.
by wnkrshm 9y ago
It's an exaggeration of the core truth, it is art. Disturbing the comfortable and comforting the disturbed, as someone said. The news about Google working on this project made me reconsider giving them as much data without at least try
549.
by wnkrshm 9y ago
I've had a look at the Naneye you linked - I couldn't find the reason why the camera would not be optical. Optical in the sense of "has an optical system with a detector that registers photons close to the visible spectrum&qu
550.
by wnkrshm 9y ago
There is a philosophical argument to be made that absolute tolerance leads to the abolishment of tolerance: "Less well known is the paradox of tolerance: Unlimited tolerance must lead to the disappearance of tolerance. If we extend unl
551.
by wnkrshm 9y ago
Not everything hinges on power, there is a lot of chemical processing involved in getting those raw materials and the raw materials to prices these materials and so forth. Like the production of sulfuric acid that we need for virtually ever
552.
by wnkrshm 9y ago
It's interesting especially with the background that the workforce will be composed of more older rather than younger people in the coming years. Also, is your first sentence a Buckaroo Banzai quote?
553.
by wnkrshm 9y ago
A problem that I see in simulating the universe (i.e. the sum of computable processes) is that in quantum mechanics, you can't simply isolate yourself from the system under scrutiny. I.e. to compute and predict the state of the univers
554.
by wnkrshm 9y ago
Interesting, didn't know about this 'race to thermal IR'. But what I do know is that op optical components suitable for thermal imaging systems are under export control in the EU. So at least as a corporate entity you cannot
555.
by wnkrshm 9y ago
It's trivial to figure out where a ranging laser comes from, it's just that asymmetric warfare enables you to use them with impunity
556.
by wnkrshm 9y ago
Density estimation techniques and parts of an optics design software I didn't know.
557.
by wnkrshm 9y ago
If you read the report that is linked above, you can see the relative speeds, headings and impact geometry. The McCain crossed in front of the cargo vessel and was hit in the aft section by the cargo vessel that had a constant speed and hea
558.
by wnkrshm 9y ago
If there is a fine involved with a certain behavior, this can commoditize the behavior in a way - it's an extra option that you can buy. An interesting historical example for this may be the trading of indulgences (pardons for sins) in
559.
by wnkrshm 9y ago
Does sinking hundreds of thousands of dollars into education make people who studied arts / humanities deserve a proportionately higher salary as well?
560.
by wnkrshm 9y ago
Why, you only need to measure distance precisely to get the vibrations of a surface which is totally possible with a laser. Laser microphones do exist.
561.
by wnkrshm 9y ago
Oh thanks, I've looked into it again and it seems it's highly controversial. I mean, even if it wasn't a hoax, the design is pretty much infeasible if you need a heat source that you can only store for less than a week and th
562.
by wnkrshm 9y ago
Exactly. I've even seen 'party laser' products at dollar stores with moving diffraction gratings that project patterns on the walls, marketed like a kid's toy (and I think with a Class 2). Even worse, the EU norm for las
563.
by wnkrshm 9y ago
You're right, my choice of words was poor there, I didn't want to imply that there are any humane weapons or ways to wage war. I think what I was trying to say is that if I could choose the wavelength to hit my eye, I'd pick
564.
by wnkrshm 9y ago
Shorter wavelengths (UV, extreme UV) are absorbed at the surface of organic tissue (and many other materials) and lead to ablation or heat transfer at the surface. So with shorter wavelengths, it'll mostly scar the cornea, which can be
565.
by wnkrshm 9y ago
It's been researched in the 80s/90s. The best solution was a gas-dynamic laser with a Po-220 (the activity of U238 within its entire 10k years halflife packed into a time of two weeks) reservoir as a heat source.
566.
by wnkrshm 9y ago
A UV-laser would be humane, since UV (and shorter wavelengths) will interact with the outermost portion of your eye - visible light or the near IR (up to 1500) is what your imaging system operates on and it's focused onto the retina. E
567.
by wnkrshm 9y ago
I work with lasers and we get a yearly security training on staying safe with lasers (the whole shebang, videos of cow-eyes exploding from diffuse scattering of a cutting laser, cutting pizza, photos of scars of accidents, post-trauma photo
568.
by wnkrshm 9y ago
cause a) you can't see when you're being shot at b) it suffices if there is a sufficiently large (to you invisible) reflection within your field of vision c) you can automatically scan a whole field very quickly, invisibly, silent
569.
by wnkrshm 9y ago
I'm also not super up-to-date on my Fourier optics but I had to research again a bit, as I had something in the back of my brain telling me: Hey, there was something with simple convolutions in Fourier optics and I know spatial convolu
570.
by wnkrshm 9y ago
I found the Gibson script (which version though I don't know) a few years ago and read it - it was indexed by google.

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