From satellite navigation to GPS, the world runs on ultraprecise timekeeping, usually based on atomic clocks. These devices use energy sources, such as lasers tuned to specific frequencies, to excite ...

The following is an extract from our Lost in Space-Time newsletter. Each month, we hand over the keyboard to a physicist or two to tell you about fascinating ideas from their corner of the universe.

NEW YORK, NY (IANS) – Billionaire Jeff Bezos has invested Rs 350 crore or $42 million to build a clock that will last 10,000 years and will tick just once a year, according to a report. The 500-feet ...