nuclear fusion

A walk on the thoughtful “wild side” of why old-school epidemiology has over-promised and under-delivered, discovering that population density is more than how tightly we are packed, an alternative hypothesis for how sleep refreshes our bodies and spirits, and an update on a maligned energy source, fusion.  
The Navy has filed a patent that could allow for the creation of portable nuclear fusion reactors. The scientist behind this is thinking big. He's also responsible for dreaming up ways to propel aircraft, like UFOs.