physics

I'm once again exposing my almost total lack of physics knowledge, but that's why I'm here :) Q1: A person in Finland is standing on top of a 100 m building. He has two bowling balls with him. They are indentical in size, but the other one weighs 10 kg and the other one weighs 100 kg. The...

Hello. A good friend of mine is trying to convince me of this Grand Unification theory put forward by Nassim Haramein. The idea is that the universe is a 3D holographic fractal going inifinitely both ways (as fractals do). Our observable universe is the interiour of a big black hole (a...

I've gotten a itch to retread the path of high school physics and more. It's been ages since high school and I was wondering if anyone had suggestions on how best to go through the learning, being this old. I've ordered a course on Calculus from The Teaching Company because people are raving...

I know that some atoms are called "stable", while others are called "radioactive", but I can't find any source which says if stable atoms are truly stable—never spontaneously decaying—or if they simply have half-lives so long that they can, for all practical purposes, be ignored. Does anyone...

A lot of people don't seem to like the idea of black holes. Understandable if you happen to run into one, but not if you simply wish to challenge the general validity of the idea. But whether you like the idea or not, it seems only reasonable that one should actually know what a black hole is...

So the universe is expanding. Space is still expanding as a result of the Big Bang and it is slowly being being accelerated apart by something currently termed Dark Energy. As a layperson with only rudimentary basic college physics, I have no real idea what "space" really is. What is it? A...

Recently I alluded to a project I had in the works. I am pleased to announce that the project is now ready. A few weeks ago, Ron Wieck (known to veterans as pomeroo) and I recorded a series of shows for the public-access show Hardfire, discussing the physics involved in the September 11th...