Mein Stromzähler wurde diese Woche mit einem "Smart Meter" ersetzt. Bezüglich Datenschutz gibt ewz an:
> Die Datenübertragung ist zwar eine wichtige Funktion, die der intelligente Stromzähler mit sich bringt. Gesendet wird aber nur einmal täglich und zwar in verschlüsselter pseudonymisierter Form. Das heisst: Übermittelt werden lediglich die Nummer Ihres intelligenten Zählers und die aktuellen Verbrauchswerte. (...) So kann aufgrund der Verbrauchsdaten nicht darauf geschlossen werden, welche Tätigkeiten die Bewohner*innen ausüben.
-- https://www.ewz.ch/de/private/strom/anschluesse/smart-meter.html#faq
Das ist schon ein bisschen überverspechend: tagliche Stromverbrauchwerte lassen jemand feststellen, ob ich weg (im Urlaub) sind, oder ob ich an diesem Tag gekocht habe (und vielleicht ob für mehrere Personen gekocht wurde).
Danach habe ich aus Neugiere auf mein ewz geguckt und hat da Stromverbrauch separat für jede 15 Minuten gefunden. Das ist sicherlich genug um viel mehr über meine Tätigkeiten festzustellen: wenn ich komme nach Hause, wenn ich Tee am Morgen mache, vlt. wenn ich koche, usw.
Ich bin ein bisschen enttäuscht mit dem Kleinmachen und irreführenden Erklärungen (wie beim Datenschutz vom Swisspass, der "nur" ein Kennnummer ablesen lässt). Ich bin auch neugierig, ob Angriffversuche auf den System von den Einbrechern finanziert werden.
I’m looking for a job, so…
I’ll be living in Gliwice (Poland), so I’m preferably looking for a remote job that can be done vaguely within the EU timezone, but local in office is fine too. I’m a (mostly backend) software developer with ~10 year of experience. Currently most fluent in Rust, but no language should be a barrier. I also have experience as an SRE and maintaining servers, plus lots of maths knowledge. I’m happy to do any of the above and more, as long as the result has a non-negative impact on society. I believe all my past employers have been very happy with my performance, and I can definitely promise you’ll be too!
Made by Zach, but not Zachtronics: Kaizen is the just-announced Japanese-factory automation game from Coincidence that'll have you managing and optimizing an assembly line making all sorts of stuff
https://thinkygames.com/news/kaizen-a-factory-story-is-a-new-automation-game-from-the-developers-behind-beloved-zachtronics-titles/
https://atomic-spectra.net/ shows emission spectra of various atoms _with intensities_ and with pictures acquired experimentally.
TIL that in oceans (assuming lack of salinity gradients) it's actually the coldest water that sinks:
> The temperature of maximum density and the freezing point of water decrease as salt is added to water, and the temperature of maximum density decreases more rapidly than the freezing point. At salinities less than 24.7 psu the density maximum is reached before the ice point, while at the higher salinities more typical of the open oceans the maximum density is never achieved naturally.
-- https://www.britannica.com/science/seawater/Thermal-properties
TIL that fraction of deuterium in hydrogen in e.g. water depends on location and source of water (lake, ocean, precipitation): https://en.m.wikipedia.org/wiki/Hydrogen_isotope_biogeochemistry
@whitequark would your headmate perhaps be willing and able to give a pointer to a reasonable point to start reading about this?
Like, why does transferrin exist? Why isn't all iron transport done with ferritin? (There's probably some extremely obvious reason, but I'm not a biochemist sadly.)
ph~
In other news, it's likely that we know the proximal reason for my recent poor sleep.
@_thegeoff who specifically might find it interesting
Consider a pot with a convex bottom (i.e. it will stand on its midpoint) with sufficiently large radius of curvature to make it stable when filled to any level. When you put such a pot on an electric hotplate and get it boiling, it starts rocking: https://www.youtube.com/watch?v=vB_szsLa3zk
I have a hypothesis on what's going on (the pot rocks away from the area where the boiling is more intense due to density difference, contact with hotplate increases rate of heating, so there's more heating on the side that's currently lower and thus any rocking gets amplified). Sadly, I don't have the pot anymore and didn't thing at that time of any experiments that could falsify this hypothesis.
We have a practical case of #Unicode encoding of country flags causing problems.
To recap, flags are encoded as sequences of codepoints corresponding to letters in the country's ISO code (so, Polish flag is <flag-p> <flag-l>). There is no heed paid to their mutability over time.
The Syrian flag will at some point start being rendered differently. Then, all the previous statements about Assad's government that used the flag will start rendering as if they were about the rebels.
I'm sad at Unicode's failures to fully and immutably encode the meaning of whoever wrote the text (see Han unification for counterexample to "fully").
@_thegeoff btw I've realized that heterodynic(sp?) interferometry is a thing, but haven't managed to dig up how it works exactly (in particular, what's the nonlinear mixer that can accept light and can emit RF, or how does it work without that).
I enjoy things around information theory (and data compression), complexity theory (and cryptography), read hard scifi, currently work on weird ML (we'll see how it goes), am somewhat literal minded and have approximate knowledge of random things. I like when statements have truth values, and when things can be described simply (which is not exactly the same as shortly) and yet have interesting properties.
I live in the largest city of Switzerland (and yet have cow and sheep pastures and a swimmable lake within a few hundred meters of my place :)). I speak Polish, English, German, and can understand simple Swiss German and French.
If in doubt, please err on the side of being direct with me. I very much appreciate when people tell me that I'm being inaccurate. I think that satisfying people's curiosity is the most important thing I could be doing (and usually enjoy doing it). I am normally terse in my writing and would appreciate requests to verbosify.
I appreciate it if my grammar or style is corrected (in any of the languages I use here).