Wikipedia: History of Snells law

Difference (from prior major revision) (minor diff, author diff)

Changed: 3,18c3

<pre>
P interface
* |
* |
. * |
n1 . * | n2
. θ1 * |
. *|
- - - - - - - - - - O - - - - - - - - - - - normal
|* θ2 .
| * .
| * .
| *
| *
| Q

Removed: 20d4

</pre>

	Revision 9 . . (edit) November 1, 2001 5:15 am by DrBob [image uploaded]
	Revision 8 . . October 27, 2001 9:20 am by DrBob [replace ascii-art with picture]
	Revision 7 . . (edit) October 2, 2001 8:40 am by DrBob [fix equations]
	Revision 2 . . (edit) September 20, 2001 5:02 pm by (logged).32.92.xxx