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I wish the article said what they did with the patent. Did everyone using this technology have to license it from Sandia?


No, refineries make more heating oil in winter and more gasoline in summer driving season.


The answer is transactions costs, many countries charge for roads where it's practical (not in the city).


What do you mean "not in the city"? Are you saying that NYCs congestion pricing is not practical?


Relaxation oscillators are easy, good phase shift oscillators are an art.


I was hoping this would go more into startup and amplitude control, which are for me the tricky parts of building a phase shift oscillator (because you have to analyze the non-linear behavior).

I guess hobbyists nowadays are just using SI5351 and calling it a day.


Most use GPSDO references for equipment, as they are inexpensive. Even miniature TCXO tend to still offer quite good value these days. =3


Not a big issue with QT layouts (still have to test the result though)


Holy cow, cheap weather stations are encoding and decoding JSON? What a century.


No, the tool rtl_433 repackages payload data in json for easier downstream consumption.


Could you go into more detail? How would you build e.g. numpy without FFI?


These days you could probably build a pretty performant numpy like using shared memory with Arrow format and IPC for control. Though it would be considerably more complex and not at all easier than FFI...


More governments should provide a system like the German electronic ID*, which lets you prove your age without revealing other information.

* Tragically underused because impractical


As far as I have heard zero knowledge proofs have become optional (thus dead) in the EU wallet specification. I expect selective disclosure in all form to be completely axed next.


not just impractical, but also not easy and free to integrate with your service. Seems designed to push you to use a commercial product.

https://www.ausweisapp.bund.de/so-werden-sie-diensteanbieter


In Belgium we have a service called "itsme". Had it for ages, works very well, used to be mainly for government but banks are also switching to it.


Why would memory eventually run out? Just fix those leaks with valgrind!


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