What to Invest In?

Via reader Dr. Simi L.:

I called my stockbroker and asked him what I should be buying.

He said, "If the current administration is in office much longer, canned goods and ammunition is your best bet."

Energy Flows...

Reader Doug S. passes along this very cool chart of energy flows in the U.S. for a recent year (2009), from the Lawrence Livermore National Laboratories.  He points out that the chart makes it clear how difficult it would be to use wind or solar power to replace our other energy sources.  There are lots of other insights like that to be had by studying this for a bit...

Ceramic Lasers to Replace Spark Plugs?

Solid state lasers have come a long way, baby...