British and German researchers have developed a new type of flexible plastic film. These 'polymer opal films' can change colors under certain conditions. For example, they could easily help you to see ...

WASHINGTON, July 23--Imagine cleaning out your refrigerator and being able to tell at a glance whether perishable food items have spoiled, because the packaging has changed its color, or being able to ...

The illustrations at the top (steps A through D) depict the creation of 3-D "photonic crystals" to improve the efficiency of thin-film solar cells, a technology that could bring low-cost solar energy.

COLOGNE — The preem of helmer Peter Cattaneo’s “Opal Dream,” about a girl whose imaginary friends become a real threat to her family in the Australian outback, will open the Kinderfilmfest, the ...

(Nanowerk News) Imagine cleaning out your refrigerator and being able to tell at a glance whether perishable food items have spoiled, because the packaging has changed its color, or being able to tell ...