Sharing this video of Hui Ge (Henry Thia a.k.a ??) who has not been seen for some time already. Here he is, showing us how to use technology to unlock the..
Tag: Door
The Klemens Torggler’s Evolution Door (video)
If you think you have a dull door, you should check out Klemens Torggler’s Evolution Door. It uses 2 squares and opens from the center by rotation. Quite..