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Did the Israelites Really Cross the Red Sea? Stunning Evidence of the Location of Red Sea Crossing! Are we experiencing a Triumph of Orthodoxy? Judge Napolitano with Konstantin Malofeev (Moscow, Russia) "Trump Administration Cancels Most USAID Programs, Folds Others into State Department" Introducing Manus: The General AI Agent "Chinese Spies in Our Military? Straight to Jail" Any suggestion that the USA and NATO are "Helping" or have ever helped Ukraine needs to be shot down instantly "Real problem with the Palestinians: Nobody wants them" ACDC & The Rolling Stones - Rock Me Baby Magnus Carlsen gives a London System lesson! "The Democrats Are Suffering Through a Drought of Generational Talent" 7 Tactics Of The Enemy To Weaken Your Faith Strange And Biblical Events Are Happening Status: Not Logged In; Sign In United States News See other United States News Articles Title: Can you really go blind by staring at the Sun? Source: [None] URL Source: http://www.sciencefocus.com/qa/can-you-really-go-blind-staring-sun Published: Aug 21, 2017 Author: Steven A Collins Post Date: 2017-08-21 10:54:04 by no gnu taxes Keywords: None Views: 7103 Comments: 21 It’s possible, but the hazard is often exaggerated. Even at midday, a normal eye will only let in enough light to heat the retina by about 4°C. You need at least 10°C to cause thermal damage. Looking at the Sun during an eclipse for more than a minute can cause damage, because your pupils are more dilated during this, but it doesn’t result in total blindness and isn’t usually permanent. If the Sun is within 10 minutes of setting below a sea-level horizon, the more dangerous short-wavelength light is absorbed by the atmosphere and it should be quite safe to look at the Sun. Post Comment   Private Reply   Ignore Thread   Top • Page Up • Full Thread • Page Down • Bottom/Latest Begin Trace Mode for Comment # 15. #5. To: no gnu taxes (#0) Dunno 'bout that - but worse things can happen if the gods don't signal their appeasement by making the Sun go dark... VxH  posted on  2017-08-21   12:39:32 ET  (1 image) Reply   Untrace   Trace   Private Reply   #14. To: VxH (#5) A very good movie. As was the Passion of the Christ. misterwhite  posted on  2017-08-21   19:02:01 ET  Reply   Untrace   Trace   Private Reply   #15. To: misterwhite (#14) Yeah. The "happy ending" was the arrival of the Spanish! Jeez Louise! Vicomte13  posted on  2017-08-21   19:12:56 ET  Reply   Untrace   Trace   Private Reply   Replies to Comment # 15. #16. To: Vicomte13 (#15) Yeah. The "happy ending" was the arrival of the Spanish! Jeez Louise! Not sure if you're being sarcastic, but I'm sure the Spanish arriving at the end was not intended to be a happy ending. As per the movie title, it was more a revelation that the warring factions, while fighting amongst themselves, were oblivious to a greater threat that made their differences insignificant. It was an illustration of foolishness, and a message perhaps intended for the contemporary world. Pinguinite  posted on  2017-08-22 02:24:32 ET  Reply   Untrace   Trace   Private Reply   End Trace Mode for Comment # 15. Top • Page Up • Full Thread • Page Down • Bottom/Latest

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