Dark Matter: The Situation Has Changed [This is a transcript of the video embedded below] Hi everybody. We haven’t talked about dark matter for some time. Which is why today I want to tell you how my opinion about dark matter has changed over the past twenty years or so. In particular, I want to discuss whether dark matter is made of particles or if not, what else it could be. Let’s get started. . . .
Hey, I like that there was a transcript. Had it just been a vid I probably would have blown it off. I'm glad we have physicists working on what seem to be relatively fundamental problems - dark matter, dark energy, how to reconcile QM and Einstein gravity, etc. Surely we can recognize that the known hole in our physics is something that deserves major attention. Progress on these goals requires serious examination of the cosmos as well as particle physics. I'd far rather see progress on these fundamental issue of science than spending money on the engineering required for a brief one-off human visit to Mars or wherever. And, there are overlaps. One is that we are reaching reasonable limits on our ability to deliver to space the kind of telescopes and other hardware using our process of full construction on Earth followed by a single launch. Plus, engineering options for space travel have included proposals for transfer stations in space, with vehicles built for space travel without any capability of actually taking off or landing in a gravity well such as a planet or moon. James Webb clearly demonstrates the problem of gravity wells. Both astrophysics and human visitation could be advanced by more attention to space based assembly. We've seen first steps with the ISS and the new Chinese space lab. But, we have a ways to go in order to support assembling telescopes, space vehicles, doing refueling, improving communications to distant satellites, etc.
E=mc^2 is actually an incomplete version of the formula. The missing parts are adjustments for velocity, but are typically so minute at relatively slower speeds that they are near-zero.
It's at least second order equation. It's proportionate with the mass of the ass to a peak, then the heat of the meat decreases with the mass of the ass. There are single order modifications for hip-to-waste ratios and hair color.
In case anyone is interested, the latest in physics is that the Higgs field causes mass. That is, the Higgs field slows down otherwise massless objects. But that only accounts for a small fraction of the total mass. The rest is energy. Energy is mass, remembering that mass is a measure of the resistance to change. The more energetic a particle, the more difficult it is to alter its trajectory. Thus a more energetic particle has more mass. Most of a person’s mass is in the energy holding their particles together. Just for the record, I don’t think that gravitons reflect reality. They are just a mathematical constructs in the effort to link gravitation with quantum electrodynamics and quantum chromodynamics, both of which have force carrying particles. The link has more to do with the commonality of the inverse square law than the actual underlying physics. But then the inverse square law is rather universal. Even farts, both in sound and smell, follow the well know pattern of the inverse square.
what is mass, and who defines it? what is "science" and who defines it? what is the meaning of is? question everything correct? Owe, unless it fits into the Liberal Democrat Agenda, then don't you dare question it!
