The world's first mechanical clocks were tower clocks built in Europe around 1270 to 1300 during the renaissance period. These clocks did not yet have dials or hands but told the time by striking ...

Every spring and fall, as we “spring forward” or “fall back,” many of us grumble about disrupted sleep and clock changes. But what if the twice-yearly rituals of setting our clock are only the tip of ...

Cyanobacteria, an ancient lineage of bacteria that perform photosynthesis, have been found to regulate their genes using the same physics principle used in AM radio transmission. Cyanobacteria, an ...