Hello,
I hope someone can help me. A student sent me this web site
<http://www.allsci.com/parallel.html>
and suggested that we do the activity in class (it is very simple and
involves poking holes in a card and shining a laser beam at the holes, then observing
the interference pattern). However, the web site claims that the observed
pattern is evidence for parallel universes. I would like to be able to explain
convincingly to my students that it is no such thing. Some of my students
have had calculus and some have not, and all are high school seniors with extreme
senioritis (only 2 more weeks of class for them). Any takers?
Thanks,
Fran Poodry
West Chester East High School
West Chester, PA