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Joined 3 years ago
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Cake day: June 10th, 2023

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  • Great news! Our current rocket technology uses the earth’s rotation for some “free” extra energy at launch, which is why they all launch in the direction of the rotation. While impossible to perceive, this is already technically slowing down the earth’s rotation and making days ever so slightly longer.





  • Not actually, it depends on the projection.

    The most noticeable visual distortion of a map projection at street level isn’t actually size and area, but angle. While Mercator and Web Mercator distort both size and area, angle remains the same. But projections like Equal Earth distort angle to keep area and size the same.

    In practice, what this means is that with Web Mercator, you will see an intersection as 2 perpendicular lines crossing each other, leaving four 90° angles. But with Equal Earth, depending on the location, all those angles will be different, and the lines won’t be perfectly perpendicular.

    (of course, Web Mercator also has this issue, because it uses a perfect sphere instead of a spheroid for the projection, but the very slight difference isn’t really noticeable, and using a spheroid is more compute-heavy)

    Map navigation and satellite imagery are very specific cases where a Mercator or Mercator style projection are better suited, mainly because of the preservation of the angles. However, for any other case, Equal Earth is a very good projection, and I agree it should be used over Mercator. Especially in education.









  • What causes accidents are not the cars and conditions you see, but the ones you don’t.

    Humans aren’t machines, they make mistakes. And cars have a lot more blind spots than we realize.

    That’s why we have rules. If we are predictable and follow the rules, even when we don’t see anything that could stop us from taking a shortcut, then we’re being considerably safer.

    Keep in mind that, on the road, it’s not just your own safety you need to ensure. An accident can also harm other people, so the more reason to prevent them.