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Randy Atkins: Your eyeglasses and windshield fog up because of microscopic water beading. Jeff Youngblood, a Purdue engineer, designed a chemical that sticks to the surface of glass, pulling water in and spreading it out to prevent beading.
Jeffrey Youngblood: Glass fogs, not because water doesn’t like glass, it’s that the water doesn’t like the oils that are sitting on the glass.
Randy Atkins: So the substance is also chemically engineered to block oil molecules.
Jeffrey Youngblood: Oil will bead up on it, so it looks exactly like Teflon to oil.
Randy Atkins: Youngblood says that means you could simply wipe your treated glass with a wet cloth and any oil would easily come off, without smudging. With the National Academy of Engineering, Randy Atkins, WTOP Radio.
The glass treatment is still in lab testing and a few years away from practical use. To find out more about this story, go to wtopnews.com and click on “Innovative Engineering” under "Quick Links" at the very bottom of the page.