Did you know that 2015 is the International Year of Light? This year was designated by the United Nations to learn as well as appreciate the optical phenomena. It is quite interesting to know some of the little known facts about light. Light Facts You Must Know The Centennial Light in California is the longest-lasting…
https://foodforthebrainblog.wordpress.com/2015/10/01/brighten-your-curiosity-with-these-light-facts/
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