Let’s get one thing out of the way: a chronometer is different than a chronograph, though one can also be the other. We’ve heard the terms confused one too many times, and while we’ll forgive past ...

Libby Purves meets actor Brian Cox and singer June Tabor. Coming up at: 21:58 Weather View full schedule Ship's chronometer from 'HMS Beagle' (made early nineteenth century), from England In our ...

Reading about watches can often feel like cracking open a textbook. Browsing—and even buying—means being barraged with inscrutable words and phrases like "tourbillons,” “perpetual calendars,” “minute ...

In the early days of sailing, it was extremely challenging for ships to determine their position at sea once they lost sight of land. Their navigation methods didn’t account for environmental factors ...

Without a very precise timer one can never catch up with the electron released in photoemission. Attosecond streaking spectroscopy allows such a chronometer clock to be set to zero and reveals the ...

Click to open image viewer. CC0 Usage Conditions ApplyClick for more information. In the 19th century, portable marine timekeepers called chronometers became indispensable instruments for determining ...