In this lesson, students will simulate the randomness of decay in radioactive atoms and visualize the half-life of a sample radioactive element. This lesson can be completed in two (2) 45-minute class ...

Why do some elements decay in minutes, while others last billions of years? Certain "magic numbers" of nuclear particles may ...

March 29 (Reuters) - The passage of time has sharply reduced radiation from some elements with a short half-life at Japan's quake-crippled Fukushima nuclear power plant but others will stay ...

Millicurie quantities of 14 C do not present a significant external exposure hazard because the low-energy betas emitted barely penetrate the outer skin layer. The critical organ for uptake of many 14 ...

Super-cooling radioactive atoms could create a laser-like neutrino beam, potentially opening a new avenue for studying these elusive particles and even enabling novel forms of communication. Every ...

This article was taken from the June 2011 issue of Wired magazine. Be the first to read Wired's articles in print before they're posted online, and get your hands on loads of additional content by ...

Monday, Oct. 21, 2024 at 10 p.m. on KPBS TV Stream now with the PBS app On Aug. 6, 1945, a clear, Monday morning at the height of WWII, the United States dropped an atomic bomb on the Japanese city of ...

Geologists have calculated the age of Earth at 4.6 billion years. But for humans whose life span rarely reaches more than 100 years, how can we be so sure of that ancient date? It turns out the ...

Scientists have revealed key properties of radioactive promethium, a rare earth element with poorly understood applications, using a groundbreaking new method. For the first time, scientists have ...

LOS ANGELES - Scientists are finding traces of radioactive fallout from atomic bomb testing during the 1950s and 1960s in honey produced in the United States today. According to a study published on ...