“Nanograss” glass turns clear or cloudy on command – just add water

"Nanograss" glass turns clear or cloudy on command – just add water

2 pictures Thanks to its nanoscale "grassy" structure, a new kind of glass can switch between clear and cloudy in seconds just by adding or removing water With blinds and curtains in front of our windows, we usually have to choose between light and privacy, but inching ever closer to reality is "smart glass," which can toggle its opacity as needed. Electricity is usually the trigger, but now a University of Pittsburgh team has developed a new type of glass that can switch between hazy and clear in seconds – just add water. Previous smart glass systems use electrodes […]

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