lens

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aniol Participant Join Date: Dec 2009 Posts: 4	lens 02/13/2010 12:48 AM
	why does the power of our lens of our spectacles reduces when kept in water??? it reduces permanently but y???
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Mikerho Guru Join Date: Jan 2007 Location: Moses Lake, WA, USA, Thulcandra - The Silent Planet (C.S. Lewis) Posts: 4216 Good Answers: 194	#1 Re: lens 02/13/2010 12:55 AM
	Look up "refractive index". __________________ "Reason is not automatic. Those who deny it cannot be conquered by it. Do not count on them. Leave them alone." - Ayn Rand
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Milo Guru Join Date: Jul 2006 Location: "Dancing over the abyss." Posts: 4884 Good Answers: 243	#3 In reply to #1 Re: lens 02/15/2010 10:53 PM
	Short sweet and to the point. Hows the snow in Akron tonight? milo __________________ People say between two opposed opinions the truth lies in the middle. Not at all! Between them lies the problem, what is unseeable,eternally active life, contemplated in repose. Goethe
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Mikerho Guru Join Date: Jan 2007 Location: Moses Lake, WA, USA, Thulcandra - The Silent Planet (C.S. Lewis) Posts: 4216 Good Answers: 194	#4 In reply to #3 Re: lens 02/16/2010 3:51 PM
	Hi Milo, I didn't see your reply until now. We only got a couple of inches - and the temp was mid-twenties. A walk in the park! I bet you got a little more! Mike __________________ "Reason is not automatic. Those who deny it cannot be conquered by it. Do not count on them. Leave them alone." - Ayn Rand
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Milo Guru Join Date: Jul 2006 Location: "Dancing over the abyss." Posts: 4884 Good Answers: 243	#5 In reply to #4 Re: lens 02/16/2010 4:19 PM
	Im heading to North Canton Tonight. I will pack my snowshoes. milo __________________ People say between two opposed opinions the truth lies in the middle. Not at all! Between them lies the problem, what is unseeable,eternally active life, contemplated in repose. Goethe
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Tornado Guru Join Date: May 2009 Location: Richland, WA, USA Posts: 21017 Good Answers: 795	#2 Re: lens 02/13/2010 1:56 AM
	Permanently? If you take the lens back out of the water and dry it off, it will miraculously recover its original power. __________________ In vino veritas; in cervisia carmen; in aqua E. coli.
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Mikerho (2); Milo (2); Tornado (1)

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