Recent content by Tishers

NASA is a mechanism to provide corporate welfare to Boeing and Lockheed Martin. It has been decades since either company has had their feet held to the fire to come in on the deliverables, cost or schedule. At some places you could say it is the incompetence of project management, but with...

NASA will continue to be preoccupied with showy, one-off events and some basic planetary exploration but they have no long-game. A political system cannot sustain the long term investment of time and vision to do much more. Space-Force will end up being a militarized activity with its long term...

ChemTeach; A couple of reasons there; Exclusion zone limits are based upon external exposures where the primary risk is from penetrating (gamma and beta) radiation. So, some attenuation from tissue is expected. The exposure at Chernobyl will be gaseous and very fine particulates that are an...