To make an image invisible, they much use a sequence of lenses to bend the light around a given object. In this way they need to think of the path for light as a function of the position of each lens.
http://www.rochester.edu/newscenter/watch-rochester-cloak-uses-ordinary-lenses-to-hide-objects-across-continuous-range-of-angles-70592/
Showing posts with label science. Show all posts
Showing posts with label science. Show all posts
Monday, October 13, 2014
Saturday, August 17, 2013
Adding Context to Scientific Notation
The world of the small is a great place to introduce scientific notation. This FEI gallery is fantastic and often includes the measurements in the photos: http://flic.kr/ps/DDQp3 I am going to use a bunch of these in my lessons. We could do a daily activity, asking "how many meters is that?"
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