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Everything posted by Gilded
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Personally, I have around 20h of high school a week so that isn't exactly preventing me from discussing science (or something completely unrelated on the IRC-channel... ). Especially since I have 6h of physics and 8h of chemistry of that 20h.
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I'll have to add that even though Finnish is probably a very hard secondary language to learn, at least there's no spelling problems as all words are sort of written as they're spelled. To the extent that it would be stupid to have a spelling bee as a Finn knows how to spell a word if they hear it. I'm not sure if I've mentioned this before, but it's always a pleasure to bring up good points about an otherwise crappy language. To stay more on topic, yacht is "jahti" (yah-tee?) in Finnish, can mean the ship or hunting, chasing.
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Always telling people to "Wikipedia it" is rather counterproductive when discussing matters like this especially when the information simply isn't there, or goes by the name of some phenomenon I haven't even heard of (which makes searching for it quite hard considering the keyword system isn't the best). I wish life was so easy that you would always get a correct answer from a source such as Wikipedia whenever you had a question.
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"Making Water from Thin Air" makes this sound so grandeur anyway. I'd prefer "Extracting Water from Humid Air" (as Capn already partially stated)
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I faintly recall searching for information about the "Radioactive Boyscout" and stumbling upon some crazy radium-related thread of YT's.
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I've seen a headline of a publication somewhere that read something along the lines of "Why photons traveling between Casimir plates don't violate causality". Back then I didn't really think much of it but now I realize that it would've been a rather interesting to read. There are phenomena where something goes FTL but not information, right? But in this case if the photons themselves are traveling at superluminal speeds (due to energy densities lower than that of "normal" vacuum), I guess it makes things a bit different? I searched for information about this but couldn't find any (thus this post). Edit: Hmm. I wonder if this is better off in the Relativity-section.
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It's convenient that you mention 40X and 1000X as IIRC that's a rather common range. I've been thinking of buying one myself (probably for just crystal study though). This one seems rather nice, but not quite in your price range. Some quite capable electron microscopes on eBay too apparently... Most are a bit too expensive to my tastes though.
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I see a diorama of the children of the world living in peace and freedom.
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Sodium chloride (NaCl) This vicious compound consists of two dangerous elements, sodium and chlorine, of which sodium can burst into flames on contact with water and chlorine is a very reactive and toxic gas in room temperature. Mainly because of sodium chloride, over 90% of Earth's water supplies can't be used for drinking. A majority of vegetation and even micro-organisms suffer heavily in environments with even moderate sodium chloride levels. Drinking a solution of sodium chloride can lead into such electrolyte imbalances and drying of tissue that death may follow. (And props to YT for noting that ethanol is essential to life ) )
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Apparently very few grasped my lowlevel humor. Frankly, if a species has come as far as to industrially start farming another organism for food then I don't find it revolting that you modify its genome for even greater gain, and for most parts trial and error concerning possibly harmful substances that weren't there before is all part of this. The main concern I have is the one woelen already mentioned, as I do care somewhat about biodiversity and not f***ing up ecosystems completely.
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I've always thought that if something is poisonous and pleasant to most then a) our genetic ancestors just haven't dealt with it too much to sort of evolve into disliking it or b) it's almost or completely identical in smell to something else that isn't toxic. I'm probably very, very wrong as usual.
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Considering bascule pasted the one of $9,100 I'm left with no choice but to paste this: http://vegetawantsps3.ytmnd.com/
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Remember that if you're willing to discuss such wonderous topics as evolution, politics, metaphysics, philosophy or ethics your post count will go up like... something. That goes up. Fast.
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Rest mass is the mass of an object at rest (surprisingly). For most classical objects this is very close to the relativistic mass and perhaps that's the reason why people don't remember/know of it too often. And AFAIK something with no rest mass can't exist at rest (and is in fact forced to move at c?).
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First a breeder reactor and now Stonehenge? Damn retro people. Anyway, interesting video and idea.
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However, we're already at the phase where it isn't just the breeding, but rather direct manipulation of the genes. With breeding godawful things rarely happen. But when you're directly tinkering the genome and really don't know what you're doing you end up with flesh-eating tomatoes that probably taste like window cleaner as well. Not that I'm against GM as long as there are some boundaries. But I'd hate to eat ketchup that tastes like goddamn Windex.
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Hmm, I didn't know Sciencemadness had an energetic materials subsection. Anyway, currently just SFN. Occasional gaming forums in the past too.
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What an innovative name. Well, I guess it makes sense, this being Science Forums and all.
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I wouldn't mind having even pure thorium around (being an element collector myself). It isn't really that dangerous, and has a half-life of over 10 billion years. I recall thorium being a carcinogen though. But hey, what isn't? Tell your kid not to lick it etc. and everything's fine (especially considering it's just 2%).
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Don't listen to blike, time travel is harmful. Buy occult books about sunken cities and otherwordly horrors instead.
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So _that's_ why Dijon mustard glows in the dark. To be honest, Dijon mustard is teh pwnz. But for the waste disposal, that's an interesting question. See http://www.ocrwm.doe.gov/factsheets/doeymp0411.shtml for some answers, although I guess it doesn't differ too much from what other countries do with their waste.
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Does anyone know the drag-coefficient of an average kiwi, or its cross-sectional area? Or mass?
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Thanks D H, that answered the question pretty well.
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Yes but my point was if the mediating particles of a field (in this case photons) are somehow able to escape the black hole and if so, how?
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"there are no features that distinguish one black hole from another, other than mass, charge, and angular momentum." (http://en.wikipedia.org/wiki/No_hair_theorem) Electromagnetic energy transfer happens through transfer of photons, right? And even photons can't escape from a massive black hole. How is it possible to measure the black hole's charge? Are my fundamentals all wrong again or am I missing something very important here?