Converting heat into electricity without moving parts

August 7, 2012, 6:00AMANS Nuclear CafeRod Adams

I've been fascinated by nuclear batteries-also known as radioisotope thermal generators or RTGs-since I first saw a pacemaker battery in an exhibit at the Maryland Science Museum. As my wife and children will testify, I am one of those slow moving people at museums who insists on reading nearly every placard under every exhibit. I'll never forget my feeling of wonder as I found out that 1/200th of an ounce of plutonium-238 could provide sufficient heat to that tiny battery to make it produce a continuous electrical current sufficient to run a heart pacemaker.

Climate Change and Nuclear Energy: We Need to Talk

July 25, 2012, 6:00AMANS Nuclear CafeSuzy Hobbs Baker

During my undergraduate studies in art school, I created a body of artwork about micro-organisms. After taking my two required biology courses, I was completely obsessed with cyano-bacteria and diatoms (they are still a central theme in my home décor). Learning that every cell in my body has mitochondrial RNA identical to these ancient life forms floored me, and made me feel completely connected to the planet and all of the other life on it in a very concrete way.

ANS Friday Matinee: Eric Loewen at Arthur M. Sackler Colloquium

July 20, 2012, 6:00AMANS Nuclear Cafe

The Arthur M. Sackler Colloquia addresses scientific topics of broad and current interest that cut across the boundaries of traditional disciplines. "The Science of Science Communication" was a Sackler Colloquium interdisciplinary scientific meeting held at the National Academy of Sciences in Washington, D.C., on May 21-22, 2012. At this meeting, American Nuclear Society Past President Dr. Eric Loewen addressed the other "three R's" of [nuclear] education:  Radiation, Reactors, and Residuals.

Court upholds EPA greenhouse gas regulations

July 18, 2012, 6:00AMANS Nuclear CafeJim Hopf

In a strongly worded unanimous decision, a federal appeals court recently upheld the Environmental Protection Agency's authority to regulate greenhouse gas emissions, as well as the EPA's "endangerment finding" that holds that those gases present a threat to human health and welfare. The court also upheld the EPA's authority to "tailor" such regulations as it sees fit, which will allow the EPA to exempt small sources of emissions and focus its regulations on large emitters (which would be more practical, and a less expensive way of reducing emissions). The court stated that the EPA's interpretation of the Clean Air Act (CAA) requirements was "unambiguously correct" and that its proposed rules were neither capricious nor arbitrary.