Particlar atomic theory

[nomadpete]

We seem to agree that the universe is a pretty big place. Well those of us who don't follow fundamentalist religion. 

But just as I thought I knew a little (embarassingly little) about atoms, electrons, protons, etc , along comes amazing info about amazingly little bits that give everything substancr. My mind is boggled.

 

https://forums.sailinganarchy.com/data/video/666/666875-6867055726852a65f86cf3e6975e27b7.mp4

[rgmwa]

Well, at least I now know how long a piece of string is. It’s quite short apparently. 

[onetrack]

My mind seized up after the first two minutes of the video. But when they came to Wittens M-theory, my eyes glazed over as well.

 

"As an example of Witten's work in pure mathematics, Atiyah cites his application of techniques from quantum field theory to the mathematical subject of low-dimensional topology. In the late 1980s, Witten coined the term topological quantum field theory for a certain type of physical theory in which the expectation values of observable quantities encode information about the topology of spacetime. In particular, Witten realized that a physical theory now called Chern–Simons theory could provide a framework for understanding the mathematical theory of knots and 3-manifolds. Although Witten's work was based on the mathematically ill-defined notion of a Feynman path integral and therefore not mathematically rigorous, mathematicians were able to systematically develop Witten's ideas, leading to the theory of Reshetikhin–Turaev invariants."

[rgmwa]

Seems pretty straightforward to me OT. Which bit are you having difficulty with? 

[nomadpete]

It's  all very simple.

 

The universe is made up of vast amounts of nothing, sprinkled with quite a lot of tiny tiny particles, all held together with string.

 

I hoe this helps......

[facthunter]

GOD only Knows. Nev

[red750]

I'm a dumb old shit. To me, most of that sounds like a term that has become popular in America - WORD SALAD.

[onetrack]

9 hours ago, rgmwa said:

Seems pretty straightforward to me OT. Which bit are you having difficulty with? 

 

I think I'm having most difficulty with the equation on the centre line......

 

[facthunter]

 All that "Old Stuff" doesn't COUNT anymore. TRUMP will FIX it, HE doesn't read books (or need to). Defund Science. It's a waste of Money. Nev

[nomadpete]

3 hours ago, onetrack said:

 

I think I'm having most difficulty with the equation on the centre line......

 

Wow. I'm impressed. 

I can't even read it.

You must have great eyesight 

[red750]

Looks like they ran out of letters in the alphabet.

[onetrack]

Nomadpete, you can click on the image to enlarge it. Let me know if your answer to the equation, is the same as mine.

[spacesailor]

space ,

Is full of "  dark matter " .

We are blind & only see the reflection of light .

Other animals can see by 'sound reflection '. 

spacesailor

[rgmwa]

1 hour ago, onetrack said:

Nomadpete, you can click on the image to enlarge it. Let me know if your answer to the equation, is the same as mine.

I got 42 if that helps.

[onetrack]

25 minutes ago, rgmwa said:

I got 42 if that helps.

 

So .... the Universe is not eternally expanding, it's actually a tetracontadigon?  🤔

[rgmwa]

I don't know for sure, but according to Douglas Adams in Hitchhiker's Guide to the Galaxy, 42 is the answer to life, the universe and everything so tetracontadigon is probably covered as well.

 

[Grumpy Old Nasho]

What is the electricity in the Human brain, AC or DC?

[rgmwa]

It's electrochemical but closer to DC in that it flows in one direction.

[facthunter]

Fired Impulses isn't it? A good Brain gives you a lot more Potential. Nev

[nomadpete]

4 hours ago, onetrack said:

Nomadpete, you can click on the image to enlarge it. Let me know if your answer to the equation, is the same as mine.

Sorry OT, mathematics has never been my forte.

[nomadpete]

1 hour ago, Grumpy Old Nasho said:

What is the electricity in the Human brain, AC or DC?

Human brain is mostly digital. All your thoughts are transferred between neurons by electrical pulses. The equivalent to digital ones & zeros.

 

And neurons are unidirectional - and they have digital routers on their inputs and their outputs.

Edited yesterday at 08:32 AM by nomadpete

[onetrack]

Getting back to the Universe, we like to think our Milky Way Galaxy is pretty big and impressive.

But the boffins have estimated that the Milky Way is only ONE of TWO TRILLION Galaxies (some smaller, and many larger than the Milky Way) in the OBSERVABLE Universe (to us mere mortals).

We can only "see" (observe) about 46.5 million Light Years into the Universe (that is, the Observable Universe is 93 million Light Years in diameter) - because of the finite speed of light, and because the Universe is still expanding at a colossal rate.

And it's ALL made up out of those myriads of tiny and unmeasurable particles, described and spoken about, in Nomadpete's video.

Kind of puts your daily importance into the right perspective, doesn't it?

 

[Marty_d]

And somewhere else, on a planet orbiting one of those trillions of stars, some other alien commuter is also swearing at the traffic.

[nomadpete]

8 hours ago, onetrack said:

Getting back to the Universe,

I get it. Although it's largely vacant possession It's a really big place.  A wise man once said...

 

 

"you're standing on a planet that's evolving
And revolving at nine hundred miles an hour
That's orbiting at nineteen miles a second, so it's reckoned,
A sun that is the source of all our power
The sun and you and me and all the stars that we can see
Are moving at a million miles a day
In an outer spiral arm, at forty thousand miles an hour
Of the galaxy we call the 'Milky Way'...."

[red750]

A few interesting facts about the Milky Way.

 

https://facts.uk/facts-about-the-milky-way/