9-month-old “Aleka” can recognize names for parts of the body already! Now, I can only assume that she's recognizing the patterns of the written words (as opposed to truly reading), but being able to do that, and being able to mentally connect that to parts of her body at only 9 months is still quite impressive.

Video Format:
YouTube

If you're thinking it's been too long since I've last posted a music video on Grey Matters Videos, you're about to get your wish.

“Weird Al” Yankovic has just released a new video, entitled “White and Nerdy”, which fits well with much of this site. The song is from his new album “Straight Outta Lynwood”. If you're having any trouble figuring out the lyrics, they're available online, courtesy of Lyric Wiki.

You can also find “White and Nerdy” on Google Video, too.

For those who may not be familiar with it, this is a parody of Cham's Ridin' Dirty.

Video Formats:
Google Video
YouTube

This fascinating puzzle was developed by a mathematician and magician named Winston Freer. What makes this so interesting is that neither the pieces nor the frame change shape or size in any way. It's hard to believe, but the devious method behind this routine is purely mathematical.

The particular version you're seeing in this puzzle is commercially available from WoodenCigars.com.

Video Format:
Windows Media

If you've been enjoying the YouTube videos of mind feats here, or any other YouTube video for that matter, you probably have at least one or two favorites that you'd like to watch over and over again without going online and searching for them. If so, the answer is here!

Two free programs have been recently released that allow you to download YouTube videos, and automatically encode them for playing on both iTunes and your video iPod.

For the Mac users, there's PodTube, which requires the use of Safari to function, since it checks for the frontmost Safari window containing a YouTube video. The Windows version, called iTube, can use any browser, but you must copy and paste the URL (web address) into iTube.

The Towers of Hanoi is a classic puzzle with three pegs (“towers”). One one tower are stacked 3 or more discs, and the object is to move all of those discs to either of the other pegs, stacked in the same order. There are two restrictions: 1) You may only move 1 disc at a time, and 2) you cannot place any disc on top of a disc that is smaller than itself. Before watching any of the videos, try it here (Javascript required, opens in a new window).

At this writing, you can find 3 different videos of people solving the Tower of Hanoi puzzle on YouTube. The above video, featuring 7 discs, is the first. The second video, featuring 6 square plates, is in Spanish. Finally, if you have 1 second more (literally), you can see the third video, done as a stop-motion video with 6 onion rings from Red Robin!

Video Format:
YouTube