Hello, I'm Dr. Steven Steiner. We're here at the dry Arizona desert demonstrating the water repelling properties of hydrophobic silica aerogel. I'm going to coat my hands withromera aerogel particles made by Cabinerogell. And this will put a hydrophobic coating over my hands so that when I place them in the water they come out dry. And in fact, when I place my hands under the water you can see a reflection looks quite strange. And if I put water on my hands it beads off. And this property is called hydrophobicity. It's introduced by changing the hydroxyl groups on the backbone of the silica aerogel for tri-mefalsylo groups which are very non-polar in the cold water. For aerogel.org, I'm Steven Steiner. I'm on you that aerogel is not just for NASA. Log on and get the gold. Thanks for watching.