Window science

Saturday 31 October 1998

In a serendipitous discovery, scientists at Lawrence Berkeley Laboratory and the University of California at Berkeley, USA, may have found an inexpensive material for making windows more energy efficient. While working on a way to boost the performance of a rechargeable battery, they put a transparent film of nickel hydroxide and titanium dioxide on glass. Surprise, surprise: it works like pho- , tochromatic eyeglasses, adjusting the brightness of the light hitting it.

Move from news to views and get in-depth reports on issues that matter to you, every fortnight.
Subscribe now »

We are a voice to you; you have been a support to us. Together we build journalism that is independent, credible and fearless. You can further help us by making a donation. This will mean a lot for our ability to bring you news, perspectives and analysis from the ground so that we can make change together.

Comments are moderated and will be published only after the site moderator’s approval. Please use a genuine email ID and provide your name. Selected comments may also be used in the ‘Letters’ section of the Down To Earth print edition.

Scroll To Top