Hydroponics Experiment Update - 48 hours later

As you may know, I'm doing a little home hydroponics by growing some basil in a home made deep water hydroponic setup (read about it).  Well, after a day I was impressed that the plants hadn't wilted, and this morning (a day and a half) things looked pretty much the same.

But when I got home this evening and took a look at the underside of the plants... here's what I saw:

Look at those roots!  They weren't there this morning!  The long dark one is the one that I threaded through the net cup when I transplanted the plants into this system - but the white roots are all brand new and they all appeared today!

So cool!