NASA have recently announced the discovery of flowing water on the planet Mars. Of course this is not really anything new! In late 1945 my grandfather gave my father a science book entitled The Marvels and Mysteries of Science “written in popular style” by Clyde Fisher et al. (published in 1943) for my father’s 13th…
Category: physics
heavy stuff
I’ve been reading up on gravity for a bit of a diversion and came across this interesting quote from David Toback of Texas A & M University: General relativity can predict what would have happened in a slightly different universe. For example, if the universe had the right mass back then it would give us…