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Paper on diffraction through the lens of the human eye: http://goo.gl/XEdMVd
"Shape of stars and optical quality of the human eye" by Rafael Navarro and M. Angeles Losada, Vol. 14, No. 2/February 1997/J. Opt. Soc. Am. A
Eye Photos courtesy of:
flickr user jyotsna210
flickr user martinak15
wikimedia user Hminden
wikimedia user Woodwalker
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Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in a minute!
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Tagged under: star,sun,diffraction,fourier,pointy, kitty,drawing,colored pencil,rainbow, stars shaped?,lens,aperture,spread,light,physics,eye,suture,cataract,retina,optics,intereference,laser,surgery,crucifix,cross,hubble,telescope,star david, points, pointed star, pointed star,henry reich,minutephysics,vision
Clip makes it super easy to turn any public video into a formative assessment activity in your classroom.
Add multiple choice quizzes, questions and browse hundreds of approved, video lesson ideas for Clip
Make YouTube one of your teaching aids - Works perfectly with lesson micro-teaching plans
1. Students enter a simple code
2. You play the video
3. The students comment
4. You review and reflect
* Whiteboard required for teacher-paced activities
With four apps, each designed around existing classroom activities, Spiral gives you the power to do formative assessment with anything you teach.
Carry out a quickfire formative assessment to see what the whole class is thinking
Create interactive presentations to spark creativity in class
Student teams can create and share collaborative presentations from linked devices
Turn any public video into a live chat with questions and quizzes