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Cake day: June 2nd, 2023

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  • uberrice@feddit.detoMemes@lemmy.mlA meme for math people
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    9 months ago

    This is confidently wrong.

    3^0 is also 1. 2738394728^0 is also 1.

    Edit: just saw that technically you’re correct - sure.

    IF base 2, Exponent reduction equals to halving - dividing by 2.

    For x^y reducing y by one is equal to dividing by x, then we have the proof it always works.















  • uberrice@feddit.detoFuck Cars@lemmy.worldthis is all
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    10 months ago

    Lucerne has a few trolley lines. They are ONLY trolley buses. The long, 3 Segment ones. Then, some 1 Segment hybrid buses that have pantagraphs. At the end of those lines, there is a longer stop where the trolley lines end, the pantagraph gets pulled down and the bus trucks along the last few stations with diesel.

    Then theres just normal hybrid buses for more rural lines, and a battery operated bus that goes up and down a hill.

    There’s a solution for every line - you just need the proper infrastructure. The reason that we have this great pantagraph-compatible infrastructure is that, while there are a lot of trains in Switzerland, there is no metro. So in lucerne, the trolley buses work almost as a metro, with the main lines having buses every 7 minutes.



  • uberrice@feddit.detoFuck Cars@lemmy.worldthis is all
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    10 months ago

    Until in 5-10 years when the batteries are fucked.

    That’s the beautiful thing about trolley buses - they do not need a (substantial) battery. They are basically trains on wheels.

    There are some places where battery powered buses make sense - for example, where I live, lucerne Switzerland, there is one bus line that just goes up and down a rather steep hill. By using recuperative braking, the battery powered bus is super efficient. For other, normal ‘high traffic’ lines, trolley makes so much more sense