iTUNES!

Ahh what a sunday it has been. After spending most of the weekend out and about, I finally found some time to relax, put on my headphones, and listen to some of my favorite tunes. GAH! But this times iTunes wasn't working, I had to resort to the use of good old CDs. How in the world do these things work, they're not digitalized like my iPod. Suddenly out of no where, Diffraction DOC! appeared and poof!. Using his diffraction magic, he explained to me the simple physics of how such old school CD's work. Each CD contains man lands and pits. The CD player uses a laser to read the different land and pits. When the laser beams are all on the pits or the lands, constructive interference occurs, however when some of the beam is on a pit and other part is on a land, then the constructive interference occurs. The laser then reads these 1s and 0s and reads it as the music that you hear. WOW. Diffraction DOC! really does know his tunes. DVDs work the same way, except the lands and pits are closer together and more tightly fit, allowing it to store much more information. THIS IS AMAZING. It's a shame all of this outdated now that APPLE as revolutionized music listening. Lesson of the week: CDs are rocking, but a little outdated.