Linux gamer, retired aviator, profanity enthusiast

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Joined 3 年前
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Cake day: 2023年6月20日

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  • My go-to example is an inverter I got for my drill batteries. It’s a box that plugs into my 20V drill batteries with a couple USB ports and a 110V wall outlet on top. It can produce 150 watts maximum from that socket. The reviews for this device are split between 4 and 5 star reviews from people who know what that means, and 1 star reviews from people who don’t. “Won’t run my air fryer. Would rate 0 stars if I could.”


  • USB Consortium: Okay, so our new connector can do everything! It’s almost as small as Micro-B, the plug is reversible in the socket like Lightning, the host and peripheral ends use the same port like FireWire, it’s got not four not nine but twenty-four pins so it can carry one USB 2.0 link, two USB 3.1 links, plus grounds, a couple different kinds of power and out-of-band communication, this thing should be good for high speed peripherals to include DisplayPort. This cable can do everything.

    Device manufacturer: We make pocket flashlights. Our product is not Turing complete. We need no data transfer and 5V 1A of power. It would be a convenient end-user feature if it could charge from the same cables as our customer’s phones. What’s the minimum viable product for USB-C power delivery?

    USB Consortium: …It’s got Thunderbolt!

    It…kind of hasn’t helped.





  • The 90’s were even more lead-addled than that. You remember these things:

    Barrel jacks and plugs. Typically used for DC power, and that’s all I can reliably say. The socket had an inner pin and and outer ring that engaged with the inner and outer surfaces of the plug. Which was positive and which was negative? BOTH! A given power brick or device could be wired either way, which is why most of them had one of these diagrams printed on them somewhere:

    There was no attempt at standardizing sizes or lengths for different polarities or voltages. It was entirely possible you could own a 12V center positive power brick that would plug straight into a 6V center negative device. If you were lucky, the device had reverse current protection, maybe a self-resetting fuse. Some didn’t. Or, somehow worse, you’d find a brick with the right voltage and polarity that wouldn’t physically fit.

    So the current state of USB-C charging is considerably less lead-brained than what I grew up with.


  • The relevant part of a long rant I once did was, a USB cable that does everything a USB-C to C cable can do has like 19 wires in it, it’s thick, stiff, and expensive. It wouldn’t make those sharp turns from the wall wart up to the night stand for charging your phone. Which is why a lot of the USB-C cables on the market carry USB 2.0 signals. A lot of the population has never used a USB cable to transfer data, it’s a power standard to them.

    And manufacturers don’t do a great job of expressing in listings or on the product itself what a cable is capable of. The charging cable that came with my Galaxy phone and the CableMatters 10Gbit/s cable look interchangeable in every way except girth; there’s no markings on the CableMatters cable as to max rated bandwidth or thunderbolt capacity or power throughput. But it’s got their logo on it twice.


  • Funnily enough, it was filmed in front of a live audience, and it is canned laughter. In the edit, they often replaced the audience’s genuine reactions with stock laughter for various reasons. For example, when Monica popped out from under the sheets with Chandler, the audience shouted for minutes on end, they trimmed that for broadcast.