Recent comments in /f/askscience
Prestigious_Carpet29 t1_j68qfaf wrote
Reply to comment by dmmaus in How close does one need to bring two coloured lights together to perceive a compound colour effect? by romxza
Yes.
See metamerism
This is also why paint-matching can be a huge problem. You can get two paints that look the same colour under one lightsource (eg. daylight) but are visibly different under a different source (e.g. fluorescent, or sodium streetlights)
[deleted] t1_j68q5g8 wrote
Reply to Shouldn't goldilocks zones shift over time? by LaRoara42
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Reply to comment by [deleted] in In the absence of cosmic radiation, would an object placed in space eventually cool to absolute zero? by IHatrMakingUsernames
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Reply to comment by [deleted] in In the absence of cosmic radiation, would an object placed in space eventually cool to absolute zero? by IHatrMakingUsernames
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[deleted] t1_j68pps8 wrote
Reply to comment by [deleted] in In the absence of cosmic radiation, would an object placed in space eventually cool to absolute zero? by IHatrMakingUsernames
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[deleted] t1_j68pi16 wrote
Reply to Why can an adult’s GI tract expel C. botulinum spores while an infant can’t? by curiousnboredd
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Reply to comment by CrustalTrudger in can gemstones be melted into a gradient? by Acceptable_Shift_247
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Connect_Eye_5470 t1_j68p8wg wrote
Reply to Are there any species of plant that require seasonal temperature drops as part of their life-cycle? by I3P
Basically... all of them. Here is a prime example Soy. Now humans worked on altering Soy so it would mature at a slightly different amount of daylight and whammo Brazil became a massive Soy exporter when prior it couldn't grow Soy in most of the country.
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[deleted] t1_j68p447 wrote
Reply to Shouldn't goldilocks zones shift over time? by LaRoara42
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[deleted] t1_j68p39w wrote
Reply to comment by [deleted] in In the absence of cosmic radiation, would an object placed in space eventually cool to absolute zero? by IHatrMakingUsernames
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[deleted] t1_j68p1i8 wrote
Reply to Shouldn't goldilocks zones shift over time? by LaRoara42
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[deleted] t1_j68ovub wrote
Reply to comment by Yaver_Mbizi in In the absence of cosmic radiation, would an object placed in space eventually cool to absolute zero? by IHatrMakingUsernames
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Reply to comment by Yaver_Mbizi in In the absence of cosmic radiation, would an object placed in space eventually cool to absolute zero? by IHatrMakingUsernames
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Reply to comment by [deleted] in In the absence of cosmic radiation, would an object placed in space eventually cool to absolute zero? by IHatrMakingUsernames
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JohnGenericDoe t1_j68oehe wrote
Reply to comment by garyisaunicorn in can gemstones be melted into a gradient? by Acceptable_Shift_247
This dude always comes thru with expert and detailed information - with sources.
Connect_Eye_5470 t1_j68oc0u wrote
Reply to In the absence of cosmic radiation, would an object placed in space eventually cool to absolute zero? by IHatrMakingUsernames
The short answer is no. Soace isn't actually 'empty' and the answer has nothing to do with cosmic radiation. It has to do with kinetic energy. Particles will strike your 'object' and impart kinetic energy which will generate 'heat' due to friction basically. 'Barrier' levels are hard to meet. I.E. you need a lot if energy to heat water from 1 degree Celsius to 99 degrees Celsius. You need a lot more to actually make water boil and reach 100.
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Reply to In the absence of cosmic radiation, would an object placed in space eventually cool to absolute zero? by IHatrMakingUsernames
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