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When you experience a severe sunburn, it's not a surprise to experience desquamation a few days later. What causes the skin to start peeling? Or in other words, what causes the old skin to start peeling at a specific time/day, as opposed to some hours earlier or later? Is it merely that the new skin reaches a threshold of viability (and if so, what is it), or is there some other trigger? Nyttend ( talk) 01:30, 28 June 2016 (UTC)
I am curious as to the principle behind Foot Peeling Liquid. [1] [2] [3] [4] Is it the same principle that is behind sunburn peeling? -- Guy Macon ( talk) 08:31, 28 June 2016 (UTC)
Recently I saw on internet a very amazing phenomenon. It was a simple LCD calculator we all use now and then. A powerful rare-earth magnet was brought near it (keeping just a few millimeters from the screen), and the showman/physicist pressed seven or eight buttons to bring a random value to the screen (though quite notably he didn't touch the calculator's memory button). Then he took the magnet away and pressed the "clearscreen" button, making screen empty except for a zero. The machine was switched off and on again. The inevitable zero reappeared. Then he brought the magnet near the LCD again, and lo....the random value of 7 or 8 digits reincarnated out of the blue !
Of course I tried it several times and failed each. Almost skeptical though, a little doubt lingers - may be I missed something, somewhere ? (Afterall I can't fly a kite or play the piano - but that doesn't mean that those pastimes are impossible ! )
Was it a sleight of hand or like Nitinol memory wire strong magnet too has a memory. Jon Ascton (talk) 10:43, 28 June 2016 (UTC)
Per Jurassic for example, "Mean atmospheric O2 content over period duration" was "c. 26 vol % (130 % of modern level)" and "mean atmospheric CO2 content over period duration" was "c. 1950 ppm (7 times pre-industrial level)". In theory, would such levels be dangerous for human to breathe and would a human sense some differences compared to modern everyday air? Brandmeister talk 17:18, 28 June 2016 (UTC)
Hello! I recently found a harvestman (genus: probably Leiobunum) which I'm having trouble identifying. Is there any free (this is important; I know there is a ton you can buy!) online species key for Leiobunum? There probably isn't, seeing as harvestmen (or invertebrates as a whole!) are of little public interest (why?!). I'd like to post a picture of her but I have no good camera that will provide details of the characteristic features ):. Thanks for reading, Megaraptor12345 ( talk) 17:31, 28 June 2016 (UTC)
Science desk | ||
---|---|---|
< June 27 | << May | June | Jul >> | June 29 > |
Welcome to the Wikipedia Science Reference Desk Archives |
---|
The page you are currently viewing is an archive page. While you can leave answers for any questions shown below, please ask new questions on one of the current reference desk pages. |
When you experience a severe sunburn, it's not a surprise to experience desquamation a few days later. What causes the skin to start peeling? Or in other words, what causes the old skin to start peeling at a specific time/day, as opposed to some hours earlier or later? Is it merely that the new skin reaches a threshold of viability (and if so, what is it), or is there some other trigger? Nyttend ( talk) 01:30, 28 June 2016 (UTC)
I am curious as to the principle behind Foot Peeling Liquid. [1] [2] [3] [4] Is it the same principle that is behind sunburn peeling? -- Guy Macon ( talk) 08:31, 28 June 2016 (UTC)
Recently I saw on internet a very amazing phenomenon. It was a simple LCD calculator we all use now and then. A powerful rare-earth magnet was brought near it (keeping just a few millimeters from the screen), and the showman/physicist pressed seven or eight buttons to bring a random value to the screen (though quite notably he didn't touch the calculator's memory button). Then he took the magnet away and pressed the "clearscreen" button, making screen empty except for a zero. The machine was switched off and on again. The inevitable zero reappeared. Then he brought the magnet near the LCD again, and lo....the random value of 7 or 8 digits reincarnated out of the blue !
Of course I tried it several times and failed each. Almost skeptical though, a little doubt lingers - may be I missed something, somewhere ? (Afterall I can't fly a kite or play the piano - but that doesn't mean that those pastimes are impossible ! )
Was it a sleight of hand or like Nitinol memory wire strong magnet too has a memory. Jon Ascton (talk) 10:43, 28 June 2016 (UTC)
Per Jurassic for example, "Mean atmospheric O2 content over period duration" was "c. 26 vol % (130 % of modern level)" and "mean atmospheric CO2 content over period duration" was "c. 1950 ppm (7 times pre-industrial level)". In theory, would such levels be dangerous for human to breathe and would a human sense some differences compared to modern everyday air? Brandmeister talk 17:18, 28 June 2016 (UTC)
Hello! I recently found a harvestman (genus: probably Leiobunum) which I'm having trouble identifying. Is there any free (this is important; I know there is a ton you can buy!) online species key for Leiobunum? There probably isn't, seeing as harvestmen (or invertebrates as a whole!) are of little public interest (why?!). I'd like to post a picture of her but I have no good camera that will provide details of the characteristic features ):. Thanks for reading, Megaraptor12345 ( talk) 17:31, 28 June 2016 (UTC)