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Cake day: May 14th, 2024

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  • Using seconds as the base unit of time would work in various situations, but not all. For example, kiloseconds (ks) would be handy for measuring the runtime of a movie or the length of a workday. In that regard, it’s just a matter of getting used to it. However the length of a solar day is about 86.4 ks and a year is about 31.54 Ms, which would be annoying numbers to memorize. Then again, remembering numbers like 60, 24, 52, 365 is about as annoying too, so that’s a problem for another day.



  • Also known as a sidereal day. Check the animation. It’s pretty cool.

    This topic also touches upon the concept of reference frames. When people say that the earth takes 24 h to make a full revolution, it’s in relation to the sun. From a universal perspective, the heliocentric reference frame moves and rotates. From the heliocentric perspective, the usual earth based reference frame also moves and rotates. Nothing is truly stationary, and measuring revolutions is impossible unless you define your frame of reference.

    If you say a full revolution takes 24 h, it’s not wrong, but it’s only true in one reference frame.


  • Ethiopians are clearly very smart people. Take that white supremacists!

    Ancient Romans just loved convoluted systems, which were later inherited by the rest of Europe. The French revolution fixed most of that mess by simplifying it and getting rid of the quirky designs. They also tried to fix time units and the calendar, but that just didn’t stick for some reason. Meanwhile, Ethiopians were already using a sensible calendar that has a good way to mitigate the messy properties of Earth.


  • I approve of this system. It should make calendars nice and simple for the most part. For example, salaries would be pretty simple since the period wouldn’t fluctuate wildly.

    It’s just that not all things respect global holidays, so calculating energy production, water consumption and other things like that would still have to deal with weird inconsistencies. Regardless, this would still be far superior to our current train wreck of a calendar.




  • That addresses the calendar problem, which is another pet peeve of mine. Oh, where do I even begin. The calendar system is just the next level of curses and barrels of rotting worms.

    At least time units have fixed, but inconvenient conversion multipliers. Months and years involve numbers that aren’t even constants!

    Just when you thought it couldn’t possibly get any worse, someone reminds you about time zones. That’s just pure cosmic horror.

    It’s a miracle we don’t trigger a nuclear meltdown every week while using a system like this.


  • Time units are just as cursed as American units.

    Conversion between days, hours, minutes and seconds is a total mess. If you never have to do anything with those numbers, you don’t need to worry about it. The moment you need to do calculations or compare devices you run into completely unnecessary problems that would have been easy to avoid. Just think of pumps and fans with units given in l/min or m^3/h.

    Just pick the standard time unit and stick with it. Use prefixes to deal with big or small numbers.


  • There are countries you don’t want to visit, because you could lose your life, organs, and/or money (not necessarily in that order). There are also some places, where you’ll also get thrown in jail for strange reasons, or no reason at all. Nowadays, when people think of countries to avoid, they also group USA with places like North Korea, Mali, Russia, China, Syria, Afghanistan etc.

    Why did I watch that documentary about the central park of New York, just when it became clear I won’t be traveling there. Might as well get even more hyped by watching documentaries about the amazing cities of ancient Babylon or the legendary library of Damascus. Good luck trying to have a vacation in those places.










  • It’s also about motivation. During the first years, you just study all the boring stuff nobody cares about. It takes years to get to the cool stuff, but by that time most students are already completely fed up with maths.

    The problems in the books were extra dry, so I prefered to come up with my own problems and solutions. Like, one day I was wondering how long it would take for a super fast train to go from one side of the planet to another. What if you accelerated half the way at 1 g, and then decelerated at -1g. How long would it take? What would be the maximum velocity? I had so many questions, and that’s why I had plenty of motivation to figure it all out. That’s how I learn weird and random stuff.

    What if you had a powerful laser that was able to evaporate stone? Let’s say you wanted to use it to drill a hole through stone, but you need to do it with the same rate as with a regular drill? Would you need a nuclear reactor just to power your super laser? My head is full of bizarre questions like this, so learning never stops.