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When I was real young in in one of those early second language programs I was super confused at the concept of different languages. I was like "if people say dinero and just mean money, why not say money in the first place". Like the idea that people weren't thinking in english was just beyond me.
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Mar 24, 2017 02:28
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VendaGoat posted:Had to explain to my brother why this was impossible. He was in his early thirties. To be fair it's sorta possible, you could hypothetically capture photons bouncin around in a container made out of mirrors, you'd just lose them over time by nature of how mirrors work. Sorta like how there's no such thing as a perfect thermos, only on a much shorter timescale.
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Mar 24, 2017 02:48
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when I had to read the giver I had the dumb "what if the blue I see is different from the blue you see" stoner moment.
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Mar 24, 2017 02:49
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smug n stuff posted:kinda but I thought you could use it to communicate instantaneously This is actually a cool idea but the reality is pushing something on one end doesn't instantly push the other end, it's just fast enough that you wouldn't notice in any real world scale. No material is perfectly rigid so when you're shoving something there's actually a wave of compression that flows through the material on a molecular level.
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Mar 24, 2017 02:58
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500 good dogs posted:"the speed of sound" is a bit misleading here because people assume it's the normal speed of sound in air that people talk about but it's the speed of sound for that material (which is why what you wrote is basically a tautology) interestingly if there were a hypothetical material that was perfectly rigid it would imply that the speed of sound through that material was equal to the speed of light.
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Mar 24, 2017 03:05
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Maldoror posted:Trapping light would work if: It kinda depends on how you wanna try to define 100% reflective, if you're going for a tautology like "it would reflect all photons always" then yeah that's impossible to achieve but the reasons for that have less to do with the material and more to do with the properties of photons themselves which could just pass through any given material without colliding with any of the molecules due to their size. so kind of a semantic argument but you could hypothetically discuss a 100% reflective material (which isn't actually possible either for other reasons), that would still be unable to perfectly contain photons simply because theres a chance the photons won't interact with the material.
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Mar 24, 2017 20:22
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a bone to pick posted:I think it has something to do with how force moves at the speed of sound through objects or something, haven't read a book or been in a physics class for years so sorry this might not be entirely correct, so if you had a huge stick in space from let's say earth to venus and you started pushing it on earth the force would move through the object at the speed of sound and take a very long time to actually move the part that's at venus. ArbitraryC posted:This is actually a cool idea but the reality is pushing something on one end doesn't instantly push the other end, it's just fast enough that you wouldn't notice in any real world scale. No material is perfectly rigid so when you're shoving something there's actually a wave of compression that flows through the material on a molecular level. You can also just google it, it's kind of a common stoner science thought sort of question.
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Mar 24, 2017 20:24
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Koyaanisgoatse posted:why can't a tomato be a hand fruit?? grape and cherry tomatoes! I think the bigger ones would be too messy as handfood.
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Mar 24, 2017 23:23
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Ralph Hurley posted:There was an ad on tv for a home air filtering device that showed cigarette smoke curling into it and clean air coming out. that's actually p much exactly what they do in countries with regulations.
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Mar 25, 2017 05:27
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Toadvine posted:I thought if you drove a car off a sheer cliff you could just step out of the car immediately before impact with the ease of getting out of a car parked in the driveway. Oh that reminds me i was confused as a kid why if i tossed a ball up and down it didnt fly to the back of the car/bus immediately. If the ball isnt touching the car and the car is moving forwards it should go back. Basically same thought as you.
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Mar 26, 2017 00:37
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