Letters to the Editor Fukushima Still Imperils Northern Hemisphere • Students are Confused by Meaning of Heat • Secretary of Energy is a Political Job • Verifying Casimir Effect Took a Long Time • Correcting an Omission in the Timeline of Fission • Joseph Black was not a Scot • Physics PhD Data Clarified/Geoff Potvin Replies
The Back Page Is There a Future for the Advanced Lab?