A few fun links.

I'm buried under a couple of pieces of work right now, but I did want to share a couple of fun science videos.

Here is a great example of magnetic levitation via superconductivity.

Those Mythbusters guys had a great time trying to make a giant Newton's Cradle using wrecking balls.  It didn't work well (and I assigned a homework problem looking at why this was the case).

I just heard yesterday that there's a full-length version of the theme song to the Big Bang Theory.  Pretty educational, though the lyrics imply that there'll be a Big Crunch, and we now know that's unlikely (see this year's Nobel in physics).

Here is a cool collection of videos, from minutephysics.  Good stuff!