Elegant Universe - Part II - String Theory

published by silvercord

1 year 3 months 2 weeks ago • 805 views

tags: strings the thing, einstein, pbs

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“The Elegant Universe, Pt 1”

String theory may be able to explain everything in the universe. Vibrating strands of energy connect it all.

Comments

I remember watching this episode. This stuff is so interesting. I'd just like to take a chance and brag that I'm going to university next year to be a Physics major. Hopefully I get to sink my teeth into some stuff like this eventually.

written by thedeusmachine

| 1 year 3 months 2 weeks ago | CH

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The Elegant Universe - Part II - String's The Thing

This one-hour episode includes the following topics in modern theoretical physics: ... all » 1. Two Conflicting Sets of Laws In order to solve some of the deepest mysteries of the universe, the rules that govern large objects like galaxies must be combined with the rules that govern small objects like subatomic particles. Running time 8:26

2. One Master Equation Many physicists now believe that strings—miniscule vibrating strands of energy thought to make up all matter—hold the key to uniting the world of the large and the world of the small in a single theory. running time 4:40

3. The Birth of String Theory In the 1960s, physicists caught a glimpse of what appeared to be strange, string-like objects hidden beneath the abstract symbols of a 200-year-old equation. Running time 4:12

4. The Standard Model Meanwhile, mainstream science was embracing particles as points, not strings, and the Standard Model was born, uniting the strong force, the weak force, and electromagnetism. Running time 6:36

5. Wrestling with String Theory By the 1970s, a few young physicists worked on taming the unruly equations of string theory and succeeded in describing how gravity works in the subatomic world, a key element missing from the Standard Model. Running time 7:18

6. The Theory of Everything A revised version of string theory, free of mathematical inconsistencies, seemed capable of describing all the building blocks of nature, and it launched a hot new field of physics. running time 5:29

7. Multiple dimensions Despite our perception that we live in a universe with four dimensions—three spatial and one temporal—string theory demands that our universe has 11 dimensions. Running time 6:57

8. Five Flavors of String Theory By the mid-1980s physicists had developed five different versions of string theory, raising the question of whether it would prove to be a theory of everything or a theory of nothing. Running time 4:59

written by silvercord

| 1 year 3 months 2 weeks ago | CH

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