I'd like to clear up a misconception: there is no fourth dimension. As a matter of fact, there is no third dimension, either. Now, by that I don't mean that there aren't three...
Around nineteen-hundred, all of physics, and particularly Einstein, was in trouble: they couldn't figure out how anything could move… Now before you complain that I'm exaggerating,...
What do we really mean by "near" and "far"? In a way, distance is just a measure of how hard it is to get between two points. The harder to get from here to there,...
You may have heard physicists describe the moon as being 1.3 light-seconds away, or the sun as 8 light-minutes away, and thought "what is this nonsense? measuring distances with...
Hello time travelers and any other people living in the future: If you're watching this, it means that the Maya, as they often are, were right. And Hollywood, as it almost always is when it...