Researchers have created a novel, energy-independent facade system that passively responds to weather changes.

you are going to build a Gate or Door to keep out enemies and animals. The only problem is that the Sons of the Forest Gate building technique is a bit different from the other buildings.

Building logic gates out of silicon is old hat, as is building them from discrete transistors, 555 chips, LEGO, and even gears. [Yukio-Pegio Gunji] and [Yuta Nishiyama] from Kobe University ...