Play peek-a-boo with one-way two-way mirror windows

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The National Institute of Advanced Industrial Science & Technology has developed glass that can be easily switched between mirrored and transparent, using a thin film of magnesium-titanium. Combined with temperature sensors, judicious flipping on and off could allow significant savings in warming and cooling the interior. On a smaller scale, it could also allow easy privacy screens in tight areas without having to cut down on outdoor light. [GT]

Successful Development of a Thin Film for a Switchable Mirror That Can be Switched Between Reflective and Transparent States [via Plastic Bamboo]

Gabrielle Taylor