Funny physics demo

mca

Just come across this funny video though not accurately explained.
http://www.youtube.com/watch?v=KT7xJ0tjB4A

Remember to read the commentaries too, e.g.

*** This is has nothing to do with the uncertainty principle. It is a simple single slit diffraction. Search wikipedia for single slit diffraction. We've made this experiment many times during first year at the Faculty of Physics in Bucharest. This is not about the uncertainty principle...

*** Don't be fooled. Just because science can predict, even precise prediction does not mean they truly understand the fundamentals of a theory. Ptolomey predicted the movement of the planets to what was then a precise degree and he was completely wrong in his theory. Science like religion make assumptions on vastly limited information. When the Savants of both science and religion tell you it is true you have no other choice but to believe -- but most times it is just chauvenistic guess....

AC

David^_^b

原帖由 mca 於 2008/6/7 00:20 發表
Just come across this funny video though not accurately explained.
http://www.youtube.com/watch?v=KT7xJ0tjB4A

Remember to read the commentaries too, e.g.

*** This is has nothing to do with the uncer ...

Good demo of transition from a classical phenomena (narrower slit -> narrower projection)
to a quantum phenomena (which works the other way)