Click here to login if you're an NAE Member
Recover Your Account Information
Download File (mp3)
Please upgrade to a newer browser.
LEDE: Engineers are creating a new type of window that can tint on demand within seconds.
Randy Atkins: With the push of a button, you might soon be able to block out precise amounts of sunlight. Mike McGehee, an engineer at Stanford University, has created a system that deposits charged metals within glass panes that spread out and make a window darker.
Mike McGehee: We have a transparent electrode…and…a polymer gel with metal ions in it and if we apply a voltage to the electrode, we can…form a thin form of metal, which is very effective at blocking light.
Randy Atkins: McGehee says a window with the metals would be very durable, and could be powered by...
Mike McGehee: …either a battery or could just be connected to the electrical lines in a home or in a car or in an airplane
Randy Atkins: McGehee says this technology could also be put in sunglasses that tint to your preferred shade. With the National Academy of Engineering, Randy Atkins, WTOP News.