Imagine the power of the bomb dropped on Hiroshima in 1945 and then multiply it by 670,000 times. Terrifying doesn't really ...

India is a treasure trove of ancient knowledge and architectural marvels, with historical sundials standing as enduring ...

CALENDAR CIRCLE This ring is encircled with the number of minutes added or subtracted to convert solar time (as shown on a sundial) to so-called mean time (as kept by clocks and watches).