The question of interference patters is central to light theory. I would like to share some pictures that show the same patterns in very unusual situations.
The first picture has been taken with the open body of a digital camera, and a laser beam a pen) shining into the body. As you can see, the same patterns appear that are usually associated with constructive and destructive interference see in the double slit experiment, or in the use of two thin plates showing so-called Newton rings.

i like to think that i have some assemblance of reason albeit one skewed by an irrational sense of place... kinda like a virtual rollercoaster... you know one of those disneyland rides where the seats move on a pivot in front of a screen that signals you to manufacture the sensation of moving forward with your own imagination...
symmetry is beautiful... and when the conditions are right the detail is immaterial... what if everything they taught us in school was wrong... and it were up to us to right the course of the future of history... what if integer is more dimensional than its popular negative number conception... what if it is a volume of three values... the negative initial value ie. -19, -3480, -292... the inverse negative value -1/19, etc... and the absolute value of the integer 19, 3480, 292, ..
maybe if we entertained ourselves with knowledge more and drama less we wouldn't be in this existential crisis where no one realizes the err of their ways because the ones who did were...

As some of you may know, the White House has launched its own photostream on flickr as part of its effort to be more open and to create "White House 2.0." By far, the funniest photo that has been posted on that photostream was taken for the White House Correspondents Association dinner: