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Ultrashort colour (Posted on 2006-10-06) Difficulty: 4 of 5

Recently physicists have managed to build "attosecond lasers", lasers which emit pulses 10-18 seconds long, interrupted by much longer periods of darkness (at least 10-14 seconds). Before them, lasers emitting femtosecond (10-15 seconds) pulses have been around. Assuming they produce visible light, what colour is it?

See The Solution Submitted by vswitchs    
Rating: 3.7500 (4 votes)

Comments: ( You must be logged in to post comments.)
  Subject Author Date
re: Question about solutiongregg2006-11-17 04:13:21
QuestionQuestion about solutiongregg2006-11-16 02:24:12
not that simplejake2006-11-15 12:41:11
Solutionre: Spoilergregg2006-10-19 03:26:20
SolutionSpoilergregg2006-10-19 01:37:19
re: Hintgregg2006-10-18 04:37:52
Hintvswitchs2006-10-15 06:43:08
re(4): I see - I thinkgregg2006-10-14 01:37:52
re(3): I see - I thinkLarry2006-10-12 20:49:55
re(3): I see - I thinkvswitchs2006-10-12 02:30:53
re(2): I see - I thinkgregg2006-10-12 01:06:36
half squareLarry2006-10-06 18:04:03
re: I see - I thinkvswitchs2006-10-06 14:41:05
SolutionI see - I thinkLeming2006-10-06 12:24:59
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