Talk about your mixed timekeeping metaphors: there are clocks, and pendulum clocks, and there are Nixie clocks, and persistence of vision clocks. But this is a Nixie pendulum POV clock, and we think ...

Physicists at the Ural Federal University (UrFU) have created a theory for the solidification of iron-nickel (Fe-Ni) alloy (invar). They determined that an important role in the technology of creating ...

MR. OVERTON has given us a most useful and interesting volume, describing the gradual evolution of timepieces from the early water clocks, through the balance clock, down to the modern pendulum clocks ...