Linux gamer, retired aviator, profanity enthusiast

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Joined 1 year ago
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Cake day: June 20th, 2023

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  • I remember labs full of networked Win 98 machines in middle school, with like Novell software on them for login credentials and whatnot. The computers sat there with a login screen and when students logged into it you would be presented with the Office suite and a restricted web browser and some educational packages. A lot of normal Win 98 stuff wasn’t there though, like any settings menus. But there was some convoluted way where you could bring up a help text and then by navigating deep in the menu system somehow cause it to launch to a “normal” Win 98 desktop.







  • Ham radio operator here: basically neither will happen because both don’t really mean anything.

    This is an imperfect analogy, but I think it will set you thinking in the right direction: If someone is blinking a flashlight at you, and you’re sitting right next to another person, do both of you see the flashlight at 100% brightness, or do your eyes wrestle for the same light waves?

    What does “pick up the signal at 100%” mean? Let’s say me and my buddy are talking on our car radios, no repeaters just point-to-point. If we start off in the same parking lot, we can easily hear each other. If we start driving in opposite directions, we’ll still hear each other just fine, until one of two things happens: We go on either side of a hill or far enough to be beyond the horizon, and then abruptly stop hearing each other, or the signal will fade in intensity until the background noise is louder.

    If we get to that point where the signal is weak but still receivable, increasing output power of the transmitter, or switching to a directional antenna might help. People tend to think antenna gain is some magic that makes the radio louder, but it’s not. A high gain antenna does the same thing that cupping your hand behind your ear or around your mouth does; it puts more of the energy that would have gone in different directions in the direction you need.

    Without getting too far into antenna theory, I will say that yes having two antennas near each other can cause them to interfere with each other. “Wrestle for the same radio waves” isn’t the way I would describe it. Antennas resonate with radio waves, it’s like a tuning fork, if you play the note the tuning fork is tuned to, the tuning fork will start to vibrate and emit its own sound. If two antennas are quite close together, this can cause destructive interference. You can use the same principle to construct a high gain antenna; look up how yagi antennas work for more details.




  • As a small time backyard gardener I can say from experience that 4 plants made more cherry tomatoes than I could reasonably eat. I was giving ziplock bags of cherry tomatoes away to people at work for a couple months. They probably did produce a year’s worth of cherry tomatoes, but they don’t refrigerate or freeze particularly well and they’re not a great choice for making tomato sauce because of their liquid/pulp/skin ratio.

    Similarly I’ve found that I can grow a year’s supply of red pepper flakes with a whopping two cayenne plants. The rate at which I consume red pepper flakes, I’m about out by the time this year’s peppers start ripening.

    I’m able, in my tiny little garden, to grow more of single kinds of foods than I can reasonably eat. I cannot grow enough to sustain my entire diet; I’d need more land than I own to grow grain.


  • You know, I think I agree with the spirit of that assertion but not the letter of that assertion.

    There are people who are kind of at their limit knowing that on your phone there’s a Facebook app, but you have to use your browser and go to the website on a computer. These folks will hear dial tones and TV static in their heads if you say “secure socket layer” to them. These folks have probably also sat through NordVPN ads and heard words like “secure” and “encrypted” used together, and will probably make understandable mistakes like “how’d someone steal bitcoins? I thought it was encrypted?”


  • Yeah, I’ve seen people riff on xkcd comics before but they usually do a bad job of matching the handwriting/font (I don’t know if Randall hand-letters these or if he types in a handwritey font). It’s often a deliberately bad job, because indicating that they are changing the original is a part of the message/artistic expression. Like when a word is covered with a black bar with white letters in it in a different font, an obvious revision, it’s like hearing a different voice interrupt.





  • Because the moon is tidally locked to the Earth, some things are quite different up there.

    The day/night cycle is a lot longer, from sunrise to sunrise is ~28 Earth days. 14 straight days of sunlight, 14 straight days of darkness. Depending on where you are on the surface, you may never be able to see Earth at all, or if you can it remains more or less fixed in the sky; if you really pay attention it slightly wobbles. The waxing and waning of the Earth’s disc are in sync with the sun as well, but not necessarily in phase. For example, if you’re on the Moon’s meridian, New Earth occurs at noon, but if you’re to the East or West it will lag or lead. You can just barely make out major surface features of the Earth enough to tell that the Earth rotates, but at a period that has nothing to do with your local conditions.

    There wouldn’t really be any utility to dividing the Moon into 24 time zones, it wouldn’t line up with anything meaningful on Earth or to human circadian rhythms, so for expeditions like the Apollo program or upcoming Artemis flights, you’d just keep an onboard mission clock for the benefit of the crew and rely on artificial lighting and shades to maintain an Earth-like day/night cycle.

    It feels to me like this is a problem that doesn’t need to be solved yet if ever; I would wait until there are actual people living on the Moon and let them solve the problem in a way that fits their needs, which we cannot fully anticipate from down here on Earth.

    I will note that time zones make more sense on Mars than the Moon. Mars has a rapid day/night cycle fairly similar to Earths, a Martian sol is about a half hour longer than an Earth day, fairly easy for humans to adapt to and live la vida loca. Some humans already have; NASA crews working on our various rovers adjust their working days to their rover’s local solar conditions. They wear watches calibrated for Martian sols and the wake up and go to bed at a different Earth time every day so that they can work from the rover’s sunrise to sunset, when they have light to see and when Spirit and Opportunity had power to move. And because the rovers are scattered across the surface of Mars, their local sunrises and sunsets happen at different times, so we already have de facto time zones on Mars.