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Front Brake Lights Could Drastically Diminish Road Accident Rates

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    D
    What is spreading sir?
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    tal@lemmy.todayT
    data centers and supercomputing facilities, which consume voracious amounts of electricity and water Memphis is on the Mississippi. Evaporating the volume of the Mississippi at Memphis with graphics cards would be a pretty impressive feat. kagis https://snoflo.org/flow/report/tennessee/ TENNESSEE FLOW REPORT August 22 2025 Streamflow levels across Tennessee are currently 92.0% of normal, with the Mississippi River At Memphis reporting the highest discharge in the state with 354000cfs 345,000 cubic feet of water per second is a pretty substantial amount of water. EDIT: Water has a heat of vaporization of 2.23 kJ/g. 345k ft³ water is 9.7×10⁹ cm³, so 9.7×10⁹g That's about 2.2×10¹⁰kJ to vaporize it (disregarding the specific heat of water, just the heat of vaporization). 1kJ ≈ 0.28 Wh. So 6,160,000,000 Wh to vaporize the water going through in a second. 3,600 seconds in an hour. So at a flow rate of 345k ft³ that'd sink about 22 trillion watts through vaporization alone. https://www.e-education.psu.edu/egee102/node/1925 In 2024, the world wide energy consumption was about 186,000 TWhs 8760 hours in a year. So global average power usage is about 21 TW. If we put the entire world's generated electricity towards heat to vaporize the Mississippi at Memphis, it'd still fall a bit short. EDIT2: I also inadvertently transposed two digits (should be 354,000 ft³/sec rather than 345,000 ft³/sec) in transcribing the initial flow rate, so it'd fall slightly shorter.
  • No bias, no bull AI

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    xxce2aab@feddit.dkX
    That's very sensible of you.
  • Tech Firms Like Google and Meta Are Embracing the Military

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    T
    We are living in a Brave New World.
  • Hitting the High Notes (2005)

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    T
    I always loved reading Joel's stuff, clear & well thought out. It was especially exciting when they were building Stack Overflow, but that's kinda got buried now. Things come & things go...
  • How Apple’s iOS 26 and Google’s Android 16 Will Change Our Phones

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    adespoton@lemmy.caA
    The one thing I’m continually annoyed about though is battery management. Why, in this day and age, do we not have a smartphone that can last on a single charge for a week? Instead, after a year or two of use, the devices with a glued in battery can barely last 8 hours on a charge. Doesn’t seem all that smart.
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    Either that has happened to more than one people or it was literally me that happened to hah, but on my lemm.ee account (RIP)
  • Pimax: one more brand exposed for promoting "positive reviews".

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    moose@moose.bestM
    This doesn't really surprise me, I've gotten weird vibes from Pimax for years. Not so much to do with their hardware, but how their sales / promo team operates. A while back at my old workplace we randomly got contacted by Pimax trying to have us carry their headset, which was weird since we didn't sell VR stuff or computers even, just other electronics. It was a very out of place request which we basically said we wouldn't consider it until we can verify the quality of the headset, after which they never replied.