Gravity
Gravity is a strange thing. Take Quasars or quasi stellar objects for instance. These are essentially supermassive black holes in the center of face-on galaxies where one of the two polar jets point toward us earthlings. The jets are super bright ; Travels literally across the visible universe ; Are thousands of galaxies bright. Now it is said that no amount of nuclear power can generate that brightness at those distances. The only thing that can do that is - gravity. And I was thinking. Gravity - it can be gentle. Actually one of the weakest fundamental forces. But at scale, it is something else. Like a drop of water versus an ocean. Lisa Randall once gave an analogy about gravity’s relative weakness. She picked up a paper clip with a small magnet and said that the electromagnetic forces could lift it up despite the entire earth pulling against it. Which tells you how weak gravity is relative to the others. In fact they say gravity could be a "projection" from ...