1. The comment about evolution is relevant. These systems likely predate humans. Why would a gorilla need a faster adapting light sensor?

  2. I see your point, but nobody had actually brought up evolution, so mentioning it as if it were already part of the discussion is weird. So evolution may be relevant, but that comment still wasn't.

  3. So, in a discussion about why our bodies function a certain way, evolulution isn't relevant?

  4. Most people use the 24-hour clock on their electronic devices. The US is a notable exception.

  5. Most people also just call it time. The US is the only place that feels the need to militarise it - or rather to militarize it, as they would say.

  6. Some places, it definitely does matter. I can think of a few pedestrian crossings near me that don't change unless the button is pressed.

  7. East Kilbride. We had something a bit like this at the James Hamilton Heritage Loch. There was a room with some train tracks in it. We watched a video on the wall at one end about the dangers of trains, then a classmate had to grab a football from the tracks and get away before a train appeared on the projector screen at the end of the tracks.

  8. Except it’s never really about religion - it’s really about land and resources

  9. They were only there because the temple only took a specific currency so they didn't have to pay the cost of getting into the consistent currency.

  10. It wasn't that they were there or that they were needed, but that they were scamming people, taking advantage of people in the place most holy to their religion.

  11. Which was only an issue because the Temple insisted on a specific currency.

  12. Difficult to get treated for something if you never acknowledge that the symptom is there in the first place. The people around the temple were so used to this that they didn't even see it as corrupt behaviour.

  13. If you're calling someone out for bad behaviour, you're saying that they're behaving badly. The line towards judgement is crossed when you assume that makes them a bad person.

  14. There are proofs that pi is not a simple ratio of two whole numbers but they seem ELIPHD rather than ELI5

  15. As you mention (in the last paragraph), the square root of 2 is irrational. The proof of that is really not that far beyond ELI5 (assuming the rules of the sub, i.e. not a literal 5yo).

  16. And to further clarify, pi being irrational is really nothing special. There are many irrational numbers (in fact, more than rational) - and pi just happens to be one of them.

  17. In fact in fact, if you look at all the rational and irrational numbers, the rational numbers make up 0%.

  18. As a university level maths and physics student, this kind of terminology becomes an issue. You are both right. The literal definition of a circle is a line segment that curves to form a loop with a constant radius from some origin O, and that definition allows the development of various types of mathematics (notable path integrals and their subsequent applications in physics). When you’re writing anything down in mathematics, you MUST be precise with what you say. However, Reddit isn’t a maths paper. It’s a social media platform. Thus, a circle is often taken into its colloquial sense which is that of a disk.

  19. Either that or you could argue that "area of a circle" can be interpreted as "area enclosed by a circle", i.e. the area possessed/controlled by the circle, rather than the area that constitutes it.

  20. Doesn't this make it still based on a certain repetitivnes

  21. Rhythm and rhyme are different aspects of lyrics, just like pitch is another aspect if we look at songs.

  22. One very simple arrangement is to have a row of tables and a single waiting chair at the top, and have an odd number of participants. After each meet, everyone moves round one seat clockwise. This means moving down the right side of the tables, around the bottom, up the left side, then on to the waiting chair. This way, everyone interacts with everyone else exactly once, and has a single session where they're waiting and can watch the other interactions.

  23. I called bullshit on the Edinburgh one and then I looked at the map again. Mind blown

  24. The centre of Edinburgh is further west than the centre of Cardiff by a few hundred meters.

  25. My attempt to really explain it to a school kid.

  26. And here's the trick. Draw a line from their position down to the equator, then from the equator to your origin, then straight to the walker. You've got a right-angled triangle. That's why we think trigonometry is all about triangles (and it's in the name). But really, it's just part of a circle. It's all circles.

  27. We don't know. However, it's worth pointing out phases aren't exactly as cleanly seperable as we sometimes think of them because we often visualize standard conditions, like we have on earth. If it has a "solid" part, it's likely less a surface and more a composition change in what is already extreme conditions we could never reach.

  28. I like to think of it being a bit like a foggy, boggy swamp. There's sky, then the fog (which is just wet air), then we reach water, then the water becomes muddy. There might be a solid surface somewhere, but you're going to sink through thicker and thicker mud before you reach it.

  29. On the table, each horizontal row is called a period. Each column is a group. This is because it cycles round periodically, and things within a group have a similar behaviour. This behaviour changes gradually as you go down through the periods. Okay, so what and why?

  30. Unless you're fully blind, your vision isn't really ever "fully off." Those little flashes are signals from your eyes and/or your brain trying to make sense of things. Since our eyes aren't ever fully off they still send a few signals to the brain. These are interpreted by our minds as the red and green flashes.

  31. In some ways, this is quite similar to some tinnitus. It can sometimes be caused by the brain "turning up the volume" when you're in a quiet environment, and all it causes is you to hear random noise.

  32. What's your definition of a paradox? People often use it to mean something that's impossible or is a contradiction. But it's really just something that seems like it shouldn't be true but is.

  33. Top comment right now is the caster angle of the front wheels. It has extremely little to do with the caster angle, and almost everything to do with the pivot point of your vehicle.

  34. The thing that people don't tend to appreciate is that it's easier to drive a car forward but it's more precise to drive it backwards. That's why driving instructors teach you how to reverse into a parking bay, or parallel to the pavement (at least in the UK). The hospital I work in has chairs designed this way too.

  35. I didn't. You're the one commenting to say "X isn't true" in a.post that says "Assume X is true. What next?"

  36. It could, but we're in a situation where we're making a certain assumption, and your argument is that the assumption is false, which misses the point of the question

  37. I'm not sure what you mean by "curving the bullets." Do you mean like in that one movie, Wanted, with the people firing bullets that bend around corners and such? I'm going to assume you are for the rest of this answer.

  38. I suppose there is an argument that a bullet shot from a barrel moving with some lateral velocity will actually shoot at an angle, rather than straight, but 1) it doesn't curve, and 2) the relative speeds are so vastly different that you can basically ignore the sideways movement.

  39. When we talk about maintaining hardware, it's normally because the hardware gets old. When we talk about maintaining software, it's because other software and hardware gets new.

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