Quantum Invariance & The Origin of The Standard Model
PBS Space Time

Quantum Invariance & The Origin of The Standard Model

B1IntermediateOctober 24, 202615 min
  • Science

Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACE Uploaded 11-07-18 In simple terms a gauge theory is one that has mathematical parameters, or “degrees of freedom” that can be changed without affecting the predictions of the theory. You can further support us on Patreon at https://www.patreon.com/pbsspacetime Get your own Space Time t­-shirt at http://bit.ly/1QlzoBi Tweet at us! @pbsspacetime Facebook: facebook.com/pbsspacetime Email us! pbsspacetime [at] gmail [d...

Play episode

Opens the player: the full transcript, every word clickable, with translation and flashcards.

Try it: tap any word

Real sentences from the start of this episode. Every word is marked with its level.

Sentence 1 of 12 · 0:00

,

theory ever developed, describing with stunning accuracy the fundamental quantum building

Hear this sentence

Tap a word to see its meaning in your language.

Do you know these words?

8 harder words from this episode. Tap one to see what it means, then mark it.

  • B21:11
  • C11:47
  • B23:59
  • B25:13
  • B28:00
  • C210:16
  • C112:02
  • B212:22

Mark a few words and we'll tell you how this episode fits your level.

Is this episode right for you?

B1

B1 · Intermediate

Fine if you can follow simple news

A1 21%A2 41%B1 28%B2 7%C1 2%
  • 91% of the words are B1 or easier.
  • 137 words a minute: a natural pace.
  • 103 harder words (B2 and up) in the whole episode.

Transcript

The opening of the episode. The whole transcript is in the player.

0:00

The standard model of particle physics is the most successful, most accurate physical theory ever developed, describing with stunning accuracy the fundamental quantum building blocks of our universe. But even more stunning is how it was discovered, by peering deep into the symmetries of reality.

0:28

As far as we can tell, mathematics is the language in which the universe is written. Our laws of physics are equations of motion, tuned by the fundamental constants. Previously, we've talked a bit about the symmetries of these equations and how they lead us to conserved quantities like energy and momentum.

0:45

But that's just the tip of the theoretical iceberg. These symmetries can be portals into entirely new aspects of reality. The most amazing example of this is the standard model of particle physics. Today, I'm going to open the first portal of the standard model

That was the opening. The rest of the episode (15 min) is in the player: every word clickable, with translation, saved words and flashcards.

Continue in the player

Automatically generated from the audio. May contain errors. Audio belongs to its publisher and is played from their feed. Rights holders can request removal — copyright & takedown policy