Here’s a design for a split-flap clock that doesn’t do it the usual way. Instead of the flaps showing numbers , Klapklok has a bit more in common with flip-dot displays. Klapklok updates every 2.5 ...
The new Doomsday Clock time has been set by the Bulletin of the Atomic Scientists. Here’s what it means.
一些您可能无法访问的结果已被隐去。
显示无法访问的结果