July 25, 1946, the United States detonated the first underwater nuclear bomb in history. The explosion on a test site of the Bikini Atoll generated a supersonic shock wave, crushing the hulls of ...

Scientists have long thought Earth's core is solid. Now they have some solid evidence. The core is thought to be a two-part construction. The inner core is solid iron, and that's surrounding by a ...

Just last week we had occasion to mention that seismometers are used to detect secret nuclear weapons tests as well as earthquakes. (That mention came in a story about seismometers detecting munitions ...

A LABORATORY determination has been made of the velocity of compressional waves in a stratigraphic section of the Chalk at Flamborough, Yorkshire. The Chalk ranges from Cenomanian to Senonian in age, ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Scientists have long thought Earth's core is solid. Now they have some solid evidence. The core ...