You can buy all kinds of conventional clocks that have hands and numbers for easy reading. Or, like [Fabio Ricci], you could build yourself something a little more esoteric, like this neat shadow ...

Add Yahoo as a preferred source to see more of our stories on Google. The Bulletin of the Atomic Scientists members, from left, Jon B. Wolfsthal, Asha M. George and Steve Fetter reveal the Doomsday ...

Wearing reflective vests and white caps, the humanoid officers have been spotted patrolling Wuhu City, in eastern China's Anhui Province, barking orders at civilians. 'For your safety, please ride ...

Educator Ruth Mork teaches kids about clocks — from sundials to cuckoo clocks to roosters. Ruth Mork introduces clocks of all kinds — sundials, candle clocks, hourglasses, cuckoos, even a rooster! She ...

A year ago, we warned that the world was perilously close to global disaster and that any delay in reversing course increased the probability of catastrophe. Rather than heed this warning, Russia, ...

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