Odds ‘n Sods:

For folks with a large stream on their property, a Pelton Wheel system like this is fantastic: Algonquin Eco-Lodge – 12 kW Micro-Hydro Turbines

   o o o

Why we face grave danger from space: The discovery that a colossal solar flare hit Earth in the Dark Ages reminds us that catastrophe could strike at any time, says Michael Hanlon.

   o o o

.50 BMG shooters might find this reference page on specialty military rounds of interest.

   o o o

Mike Brown is planning to build a new generation of reliable 8 horsepower steam engines that will be able to run a 5 kilowatt generator.