Cool Stuff
~Serious!~
I was thinking: If you have a beam of light, and it goes through a single slit, you get a single slit diffraction.
Two slits? Interference pattern seen!
Let's say you have many many many slits, then you have a diffraction grating, so you get a many slit diffraction pattern!
And... if we say the diffraction grating has an infinite number of slits? Will we still get a many slit diffraction pattern?
NO! A grating with so many slits, is a NO SLIT! This means there is no grating present between the light and the screen, but simply plain air!
The strange thing is, if you do the math, it tells you that if there is no grating present (i.e. infinite slits), then... light travels in an infinite number of ways before getting to the screen!
But heck, doesn't light travel in a straight line?
Well. Truth is, it doesn't!
LIFE IS SO... weird.
~Happy Chinese New Year again!~
Yong Kiat, the answer to this seemingly paradoxical experiment is Feynman's formulation of Quantum Mechanics. Read "Quantum Field Theory In A Nutshell" by Anthony Zee for more details.
Posted by
boonleong |
10:08 AM