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