U.S. CitiesCity-Data Forum Index
Go Back   City-Data Forum > General Forums > Science and Technology
 [Register]
Please register to participate in our discussions with 2 million other members - it's free and quick! Some forums can only be seen by registered members. After you create your account, you'll be able to customize options and access all our 15,000 new posts/day with fewer ads.
View detailed profile (Advanced) or search
site with Google Custom Search

Search Forums  (Advanced)
 
Old 04-07-2014, 11:50 AM
 
2,483 posts, read 2,740,344 times
Reputation: 1101

Advertisements

A week or so ago, I got a new pair of polaroid sunglasses. True to all laws of nature, we have had only one day of sunshine since. But, no matter there. On that off-and-on sunny day, I went outside to try out the glasses. The lenses are brown. That is clear to see. However, when I took them off and held them lens-side-up toward the sky, they appeared blue. I think brown has no blue. Brown is red, orange and green on the prism scale. I tried the internet with my 'why' and didn't find much. I did find this one sentence at an optical site:

"Brown filters out blue." Is that why? The brown lens "rejects" the blue. And is this the blue that is part of the green in brown? Or is it just the blue of a prism?

Thank you.
Reply With Quote Quick reply to this message

Reply
Please update this thread with any new information or opinions. This open thread is still read by thousands of people, so we encourage all additional points of view.

Quick Reply
Message:

Over $104,000 in prizes was already given out to active posters on our forum and additional giveaways are planned!

Go Back   City-Data Forum > General Forums > Science and Technology
Follow City-Data.com founder on our Forum or

All times are GMT -6.

2005-2018, Advameg, Inc.

City-Data.com - Archive 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35 - Top