The Elegant Universe

I watched this video made by the great channel, PBS. It went over gravity, electromagnetism, and the weak and strong nuclear forces. It was pretty good, especially the speaker, Dr. Brian Greene. I recommend checking it out.

Watch The Elegant Universe: Part 1 on PBS. See more from NOVA.

Advertisements

Physics for the normal person

Physics! Do you love it and study it and have posters of Albert Einstein and Sir Isaac Newton in your room? Yeah not me. I did take 2 semesters of physics in college but that was it. But I do like science, and when I watch tv and they talk about the string theory or the Higgs boson, I feel dumb for not knowing what that is. So I want to learn about physics, but when I look up something in Wikipedia I cannot understand everything because there are other words I don't understand. And when I click on that term that takes me to a link where there are more things I don't know. For example:

String theory is an active research framework in particle physics that attempts to reconcile quantum mechanics and general relativity. It is a contender for a theory of everything (TOE), a self-contained mathematical model that describes all fundamental forces and forms of matter. String theory posits that the elementary particles (i.e., electrons and quarks) within an atom are not 0-dimensional objects, but rather 1-dimensional oscillating lines (“strings”). [http://en.wikipedia.org/wiki/String_theory]

That's only 3 sentences of a very long page, and I am not going to read everything because it would take forever. But I still want to know about string theory, so what do I do? Well I've decided to look for short videos that explain it to the non-physics person. And voilĂ , I found some good ones! The first two are short and the last one is long, but the speaker (Dr. Michio Kaku) is the cat's ass. Enjoy!

String Theory

Have a nice rest of the weekend!