In my last post about spacetime, I explained how the geometry of spacetime is determined at each spacetime point by a set of 10 numbers. These 10 numbers are packaged together into a matrix called the metric, which is written … Continue reading
Back in the comments section of my post on Giving Thanks, an old college friend and I are discussing the age-old problem of why God permits suffering and other evils. This is a serious problem; in my view the Argument … Continue reading
Today I went to a talk by Lawrence Krauss entitled “A Universe from Nothing”, which had the following abstract: The question, "Why is there something rather than nothing?" has been asked for millenia by people who speculate on the need … Continue reading
Scientific Results are Examined Collaboratively. Scientists do not work alone, but in a particular kind of community. The last stage of a research project is publishing and explaining the results. Assuming these results get noticed, this begins the process of … Continue reading
In Time as the Fourth Dimension?, I explained how to calculate the distance (or duration) squared between any two points of spacetime, using a spin-off of the Pythagorean theorem: Then I explained the Ten Symmetries of Spacetime, i.e. ways to … Continue reading
