wnkrshm

31 ms·

331.
by wnkrshm 5y ago
How much of a lab environment do you have? ZnSe lenses were infamous at the laser lab I worked at - I mean, sure, if you're not machining ZnSe, that reduces possible exposure to its toxicity (or rather, ZnSe releasing selenide), if you
332.
by wnkrshm 5y ago
The flipside is switching speed, optically you can reach THz and more apparently, while heat/capacitance/crosstalk limit electronic transistors IIRC.
333.
by wnkrshm 5y ago
This question has been asked and answered in the German media in 2020 iirc - the institute doing the counting, the Robert Koch Institute, has an explanation in their FAQ [0], to paraphrase: In general, there are fewer cases reported to the
334.
by wnkrshm 5y ago
There are applications in CAD where I imagine working with degree 2 surfaces/curves only is going to be very tricky. What about differentials? How do you get a change of normal, how do you get a curvature tensor? Without a continuous
335.
by wnkrshm 5y ago
Yesterday 8:15h This week so far 36:29h, This month so far 85:13
336.
by wnkrshm 5y ago
The social acceptance of many autonomous applications hinge on accepting that someone was hurt or killed in a way that was trivial to prevent for a human in control. The other side of this is that a machine may prevent other accidents that
337.
by wnkrshm 5y ago
The papers are interesting to people making tools - if you can see what mathematical assumptions are made you can see what limitations a method has and whether it can apply to cases you're interested in.
338.
by wnkrshm 5y ago
Isn't more like: you draw something, it classifies and then gives you matching clip art?
339.
by wnkrshm 5y ago
Not only that, but you get better fuel efficiency, better acceleration etc.
340.
by wnkrshm 5y ago
I draw, paint and use blender - at the moment to make assets for a friend's indie game project made in Unity. Personally, I'd rather use Godot but the team has experience in Unity, so that's that. I may also write an ocean su
341.
by wnkrshm 5y ago
This immediately made me think of a cyberpunk dystopia where there are shiny, pre-packaged widgets for the elite and open-source medicine for the poor masses. But then I immediately remembered that there may just be no medicine for the ma
342.
by wnkrshm 5y ago
I think that would be something well-adapted to our future of conserving energy. Less planned obsolescence, more maintainability. In a perfect world, we could put all our advances in the 'atom' world into appliances that make ever
343.
by wnkrshm 5y ago
Yeah but it scales badly, especially with all the people not solving it contributing to the problem.
344.
by wnkrshm 5y ago
That would depend on the distance you want to fry moskitos at, if you want to burn them at meters, you need a larger aperture to get a similar divergence angle as with cm.
345.
by wnkrshm 5y ago
That is (almost*) the same as focusing a laser on the target with a very large lens - a highly divergent beam is only dangerous near the focus. Some laser processing machine developers make their machines eye-safe that way, if you're h
346.
by wnkrshm 5y ago
Then you injure the cornea. That's why they use UV lasers for laser surgery, because the cornea absorbs it. Edit: I recently had a small corneal erosion from my eye drying out over night (eyelid was pulled open by sleeping in a weird p
347.
by wnkrshm 5y ago
Trying to hurt someone with words also induces a reasonable assumption of that person wishing you ill. You don't know how far they will go in either case.
348.
by wnkrshm 5y ago
Even if the mechanics are known and everything is deterministic, it may be impossible to predict something in practice. Usually, when e.g. a physical model is deterministic, we can have an assumption of some initial conditions and then evol
349.
by wnkrshm 5y ago
Any arbitrary nonlinear system is not guaranteed to be predictable, it can be chaotic, i.e. it is deterministic but you need infinitely precise knowledge of the initial conditions to predict it (Edit: since small errors in the initial condi
350.
by wnkrshm 5y ago
But, didn't the market trade the same people as property? How is the market an engine for social progress there? Isn't that a bit cherry picked?
351.
by wnkrshm 5y ago
This is an interesting read as to the possible caveats of fusion power [0]. It's interesting, whether one reaches the same conclusion as the plasma physicist who wrote the article or not. [0] https://thebulletin.org/201
352.
by wnkrshm 5y ago
It is good to see that the per capita trend has reversed, maybe if the global population would not increase steadily we may actually not increase energy consumption steadily. Edit: I found an interesting nature article[0] that looks at diff
353.
by wnkrshm 5y ago
Use of fusion as an energy source removes a lot of threats our civilizations are facing but it also comes with some caveats rooted in human behavior. Human energy consumption has always gone up when the supply got more efficient, from coal
354.
by wnkrshm 5y ago
SDFs are nice but to make a nice triangle mesh, you'll have to sample points on the isosurface, by geodesic distance.
355.
by wnkrshm 5y ago
While the methods are very interesting, I often wonder about assumptions about what can be modeled. We already know that it's not possible to correctly predict an arbitrary nonlinear system numerically (since that system could be chaot
356.
by wnkrshm 5y ago
I wonder. If we really create something that can become much more adaptive than all of us, is that a good goal? And I don't buy the usefulness - maybe, but there is the problem of validation. At some point, a superhuman AI can state wh
357.
by wnkrshm 5y ago
There are interactions between the first two. If the climate puts too much pressure on societies, people will become more accepting of waging war - thus maybe triggering the nuke option before the climate problem has had any chance to do al
358.
by wnkrshm 5y ago
While it's a carbon neutral-ish way (except launch options and production of the satellites) to get power, the energy that the solar panels beam down is going to heat up the Earth as well. The better the efficiency of the solar panels,
359.
by wnkrshm 5y ago
There is probably not going to be an email service that does not share protonmail's threat model, i.e. national police investigation. A nation state has leverage, if the people running the service don't want to go to jail for you
360.
by wnkrshm 5y ago
The take-away should be that we should mask up and try to isolate independent of vaccination status. Sadly, lots of vaccinated people think the ride is over for them and behave accordingly, in addition to the ones who never cared in the fir

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