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Cake day: June 10th, 2023

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  • Having elected officials makes sense for politicians since their job is to represent the interests of the people but it’s terrible for other types of public office.

    What do you want from a judge or a sheriff? Someone who’s experienced and competent. Who can best judge that? Would it be the hierarchy of their peers who they work with every day or would it be random members of the public who’ve barely even heard of them?

    Edit: and no, I’m not suggesting political appointments. That’s also a recipe for disaster. Do it like Commonwealth countries: make the civil service independent of the political process and make appointments be part of the usual process of promotion.















  • zik@lemmy.worldtoScience Memes@mander.xyzRecognize the mother of Wifi
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    5 months ago

    It was hardly ever used in WiFi. Two spread spectrum schemes were available in the original WiFi spec, FHSS and DSSS. DSSS was always preferred over FHSS and in practice FHSS was hardly used and eventually obsoleted a decade ago due to lack of use. It was never “the basis” of WiFi as claimed in the meme - that’s simply incorrect.

    Don’t get me wrong. FHSS is cool and it’s a great achievement. It just has little bearing on WiFi and absolutely no relationship to GPS.

    Better examples of FHSS would be Bluetooth (which you already mentioned), cordless phones, R/C toys and some military communications.



  • zik@lemmy.worldtoScience Memes@mander.xyzRecognize the mother of Wifi
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    5 months ago

    This is mostly wrong: while she did invent what would later be called Frequency Hopping Spread Spectrum (FHSS), it isn’t used in modern WiFi or in GPS. It is used in Bluetooth though.

    I should point out that techniques like FHSS are only a part of what makes up a radio communication method. You can’t say it was “the basis of Bluetooth” just because FHSS is one of the many technologies used in Bluetooth. She certainly contributed though.