[ Sorry I goofed on my last posting... this one is spell - checked -pankaj] Recently their was a joke about a philosophy teaching assistant and poor science. Well I thought I might send this one as I thought it was topical and to show that science takes a licking not only in America. .... About eight years ago, when I was studying in high school in India, my Chemistry professor was trying to explain the "screening effect" of electrons (a phenomenon that makes metals bind their electrons less losely then other elements, resulting in conductivity). He tried to give an analogy, using earth and moon. He said, "Imagine if their was another moon orbiting earth, then the pull that our true moon faces will be smaller." I was puzzled and declared that it is not possible. To which he further explained," Well it's like this. The earth now has to pull two moons instead of one hence it has to divide its force among the too, hence its pull on the moon will be halved." At this point I argued that all the artificial satellites in the sky must face lesser pull by earth when ever a new satellite is launched. " That's true," he said,"and that's why the cost of launching satellites is going up these days...." Pankaj
(From the "Rest" of RHF)