The Colgate clock, named after the former Colgate-Palmolive plant, started telling time in November 1924. It remains atop the ...
Breakthrough could pave the way for next-generation GPS in drones, smartphones and self-driving cars, scientists say.
Resembling a squat, wide fridge, the world's most accurate clock went on sale for $3.3 million in Japan on Wednesday.
Some of the world's most advanced AI systems struggle to tell the time and work out dates on calendars, a study suggests.