RAINBOW
The hidden beauty of the rainbow
May 17, 2015
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RAINBOW
Radius? 20°, 30°, 42°, 50°
Color sequence? redàblue or blueàred
Inside the bow is brighter or darker?
How many bows can you see? 1, 2 ,3…
Is the bow light polarized?_________
Radius? 20°, 30°, 42°, 50°
Color sequence? redàblue or blueàred
Inside the bow is brighter or darker?
How many bows can you see? 1, 2 ,3…
Is the bow light polarized?_________
sin!1sin!2
=n2n1
sin!1sin!2
=n2n1
!1
!2
!2!2
!2
!1
!
! = 4 !"1 " 2 !"2
sin!1sin!2
=n2n1
!MAX
n2n1=1.331 !max = 42°
n2n1=1.343 !max = 40°
sin!1sin!2
=n2n1
! = 4 !"1 " 2 !"2
WHITE LIGHT
Radius? 20°, 30°, 42°, 50°
Color sequence? redàblue or blueàred
Inside the bow is brighter or darker?
How many bows can you see? 1, 2 ,3…
Is the bow light polarized?_________
Hidden Beauty
Knowledge
Curiosity
Next Tuesday Open Space! http://t
echtv.mit.edu/v
ideos/15802-how-to-make-tea
ching-come-alive
Walter Levin
credits
Thank you!
Creative commons pictures – by-sa: http://www.flickr.com/photos/osde-info/6186614300/ http://www.flickr.com/photos/giovanniiaboni/2729591356/ http://www.flickr.com/photos/sweetone/2624102200/ http://www.flickr.com/photos/30218070@N08/5765568457 http://www.flickr.com/photos/antongl/5951514342/ http://www.flickr.com/photos/physicsdemos/5734080168/ http://www.nationalgallery.org.uk/paintings/john-constable-salisbury-cathedral-from-the-meadows
h3p://crea9vecommons.org/licenses/by-‐sa/3.0/
Video: http://techtv.mit.edu/videos/15802-how-to-make-teaching-come-alive
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