kabouseng (u/kabouseng)

kabouseng commented on Why you can't color calibrate deep space photos maurycyz.com/misc/cc/... · Posted by u/LorenDB

klysm · a month ago

Recently I've been on a bit of a deep dive regarding human color vision and cameras. This left me with the general impression that RGB bayer filters are vastly over-utilized (mostly due to market share), and are they are usually not great for tasks other than mimicking human vision! For example, if you have a stationary scene, why not put a whole bunch of filters in front of a mono camera and get much more frequency information?

kabouseng · a month ago

Yes off course, but with the obvious disadvantage that you lose resolution for every filter you add. Then you say let's just increase the pixel count, which means smaller pixel pitch. But then you lose low light sensitivity, have to decrease your lens f/#, so more expensive lenses etc... Which is why it isn't done for commercially / mass market sensors.

kabouseng commented on US and UK refuse to sign AI safety declaration at summit arstechnica.com/ai/2025/0... · Posted by u/miohtama

gyomu · 7 months ago

If you’re making sweeping statements like that, why the arbitrary distinction at 300 years? What happened then? Why not say “since the dawn of humanity”?

kabouseng · 7 months ago

Probably referring to the period that pax Britannia and pax Americana have been the global hegemon.

kabouseng commented on Where is London's most central sheep? diamondgeezer.blogspot.co... · Posted by u/GeoAtreides

steerpike · 7 months ago

When my wife and I lived in Bristol we developed a metric designed to measure how enjoyable a city was to live in that we called "time to sheep". Basically it's a measure of how long you have to travel from the center of the city before you're in the English countryside surrounded by sheep and the best cities have a low (but not too low) "time to sheep" metric. It helped explain one of the reasons we loved living in Bristol so much when we had such a hard time living in London.

Could also have been that Bristol is just a crazy beautiful city to live in, but where's the fun in that, right?

kabouseng · 7 months ago

In Africa I suppose we have time to lion...

kabouseng commented on Ultraprecise method of aligning 3D semiconductor chips invented techxplore.com/news/2024-... · Posted by u/thebeardisred

kabouseng · 10 months ago

You also need to take into account your manufacturing precision you can achieve with fabricating the lenses, how accurately you can position the lenses relative to the work piece etc. From my cursory reading of the paper it assumes perfect lenses and positioning, and only simulates the alignment procedure. Still, a worthy paper, but as others have mentioned, not much different than the methods used for optics alignment.

kabouseng commented on Why does FM sound better than AM? johndcook.com/blog/2024/1... · Posted by u/zdw

zsellera · a year ago

What you "more bandwidth more noise" people miss is the difference in randomness: the noise is random while the signal is not.

In case of gaussian noise, double the bandwidth means 1.41x more noise. For signal, double the bandwidth double the signal.

kabouseng · a year ago

Noise is not gaussian.

kabouseng commented on The quiet art of attention billwear.github.io/art-of... · Posted by u/billwear

kabouseng · a year ago

I was expecting him to uncouple the horses from the carriage and continue his journey.

kabouseng commented on The six dumbest ideas in computer security (2005) ranum.com/security/comput... · Posted by u/lsb

munchausen42 · a year ago

About 'Default Deny': 'It's not much harder to do than 'Default Permit,' but you'll sleep much better at night.'

Great that you, the IT security person, sleeps much better at night. Meanwhile, the rest of the company is super annoyed because nothing ever works without three extra rounds with the IT department. And, btw., the more annoyed people are, the more likely they are to use workarounds that undermine your IT security concept (e.g., think of the typical 'password1', 'password2', 'password3' passwords when you force users to change their password every month).

So no, good IT security does not just mean unplugging the network cable. Good IT security is invisible and unobtrusive for your users, like magic :)

kabouseng · a year ago

That's because IT security reports to the C level, and their KPI's are concerned with security and vulnerabilities, but not the performance or effectiveness of the personnel.

So every time, if there is a choice, security will be prioritized at the cost of personnel performance / effectiveness. And this is how big corporations become less and less effective to the point where the average employee rarely has a productive day.

kabouseng commented on Why does current flow the opposite way from the electrons? mathstodon.xyz/@johncarlo... · Posted by u/johncarlosbaez

throwway120385 · a year ago

Because he didn't know anything about electrons, and the experiment he did involving rubbing amber and glass rods on fur and silk cloth only showed that something was transferred between the two materials, and that when the material containing the substance was brought near to the other material containing the other substance, the property conferred by the substances appeared to negate. If you read Teaching Introductory Physics the author very clearly points out that there is no way of knowing the direction of the charge. It must instead be decided by convention. And Franklin simply chose a convention that we stick with.

This is where the need to use mathematical formalism to describe physical concepts becomes clear. Numbers and numeric quantities aren't a real thing that exists in the world. They exist only in our minds. And so does the concept of negation. Calling electrons "negative" is simply a tool for us to model how the substance behaves when it interacts with an "opposing" substance using numbers. We could just as easily have called it "black" or "white" charge, except that we then need to adapt arithmetic and algebra and calculus and so on to work with the concept of "black" or "white" quantities if we are to use them to understand the substance of charge.

kabouseng · a year ago

Similar reason why the earth north pole is actually a magnetic south pole :) It was decided by convention / definition.

For those whom it isn't clear what I mean. Compass magnet's north poles point north, which is only possible if the earth's north pole is magnetically a south pole.

kabouseng commented on Högertrafikomläggningen en.wikipedia.org/wiki/Dag... · Posted by u/destructuredObj

kabouseng · a year ago

There is a joke, that in order to facilitate such a change, it should be done in more manageable steps. So on day 1, only the motorcycles switch over to the other side of driving, on day 2 the motor vehicles, and on day 3 the trucks and busses switches over...

kabouseng commented on VCs aren’t your friends openvc.app/blog/vcs-arent... · Posted by u/taubek

MichaelZuo · a year ago

Not if they are a bonafide super genius, then it's entirely possible.

That's the minimum bar without traction however. A regular genius isn't that impressive.

kabouseng · a year ago

VC's don't have the ability to distinguish between genius and super genius...