## Why does E=mc^2? (The book by Brian Cox and co.)

Sorry Ani :P

Study matter and its motion through spacetime...

### Why does E=mc^2? (The book by Brian Cox and co.)

On reading the thread about Brian Cox, new book i saw that Ani was considered starting a thread on Brian's previous book so that he could ask questions.

Well it reminded me that I had a question so ive jumped the gun and started the thread myself, sorry Ani

Anyway, first question of the day is, where can i find the master equation? I clearly fail at internet searching because i cant find the master equation in a form as simplistic as the one stated in E=mc2.

Thankyou
Last edited by Joe09 on Sep 24, 2011 9:24 am, edited 2 times in total.
Joe09

Posts: 1268
Age: 30

Print view this post

### Re: Why does E=mc^2?

Sorry for not using a comma correctly knowing what a grammar Nazi I am?

(Sorry, Ani)
A most evolved electron.

Animavore

Name: The Scribbler
Posts: 43622
Age: 41

Print view this post

### Re: Why does E=mc^2?

Joe09 wrote:On reading the thread about Brian Cox, new book i saw that Ani was considered starting a thread on Brian's previous book so that he could ask questions.

Well it reminded me taht I had a question so ive jumped the gun and started the thread myself, sorry Ani

Anyway, first question of the day is, where can i find the master equation? I clearly fail at internet searching because i cant find the master equation in a form as simplistic as the one stated in E=mc2

E=mc2 is the case where a particle has no momentum. See here: http://en.wikipedia.org/wiki/Mass%E2%80 ... D_mc.C2.B2
Scarlett and Ironclad wrote:Campermon,...a middle aged, middle class, Guardian reading, dad of four, knackered hippy, woolly jumper wearing wino and science teacher.

campermon
RS Donator

Posts: 17311
Age: 50

Print view this post

### Re: Why does E=mc^2?

Ek= 1/2 mv2 ?
tuco

Posts: 15450

Print view this post

### Re: Why does E=mc^2?

Animavore wrote:Sorry for not using a comma correctly knowing what a grammar Nazi I am?

(Sorry, Ani)

English and grammer have never been something i cared about

Which is probably why the marks i lose in my 'research papers' are mostly grammatical and not due to factual or procedural error

Joe09

Posts: 1268
Age: 30

Print view this post

### Re: Why does E=mc^2?

campermon wrote:
Joe09 wrote:On reading the thread about Brian Cox, new book i saw that Ani was considered starting a thread on Brian's previous book so that he could ask questions.

Well it reminded me taht I had a question so ive jumped the gun and started the thread myself, sorry Ani

Anyway, first question of the day is, where can i find the master equation? I clearly fail at internet searching because i cant find the master equation in a form as simplistic as the one stated in E=mc2

E=mc2 is the case where a particle has no momentum. See here: http://en.wikipedia.org/wiki/Mass%E2%80 ... D_mc.C2.B2

Apologies, i should have been clearer. I am talking about the book not the question itself.
Joe09

Posts: 1268
Age: 30

Print view this post

### Re: Why does E=mc^2?

tuco wrote:Ek= 1/2 mv2 ?

The classical KE drops out of the equations;

http://en.wikipedia.org/wiki/Kinetic_en ... gid_bodies
Scarlett and Ironclad wrote:Campermon,...a middle aged, middle class, Guardian reading, dad of four, knackered hippy, woolly jumper wearing wino and science teacher.

campermon
RS Donator

Posts: 17311
Age: 50

Print view this post

### Re: Why does E=mc^2? (The book by Brian Cox and co.)

Looks fascinating as does his upcoming (follow-on) book:

http://www.amazon.com/Quantum-Universe- ... 396&sr=8-3

Link to the E=mc2 book on amazon for those interested:
http://www.amazon.com/Why-Does-mc2-Shou ... 396&sr=8-4
Kenny A. Chaffin
Art Gallery - Photo Gallery - Writing&Poetry
"Strive on with Awareness" - Siddhartha Gautama

kennyc

Name: Kenny A. Chaffin
Posts: 8698

Country: U.S.A.
Print view this post

### Re: Why does E=mc^2? (The book by Brian Cox and co.)

Joe09 wrote:On reading the thread about Brian Cox, new book i saw that Ani was considered starting a thread on Brian's previous book so that he could ask questions.

Well it reminded me that I had a question so ive jumped the gun and started the thread myself, sorry Ani

Anyway, first question of the day is, where can i find the master equation? I clearly fail at internet searching because i cant find the master equation in a form as simplistic as the one stated in E=mc2.

Thankyou

When Cox is talking about the master equation, he isn't talking about E=mc2, which is the simple form of the equation dealing with the relationship between energy and mass. He's talking about the master equation of the standard model.

hackenslash

Name: The Other Sweary One
Posts: 21438
Age: 50

Country: Republic of Mancunia
Print view this post

### Re: Why does E=mc^2? (The book by Brian Cox and co.)

I loved that book! The explanation of spacetime, and momentum through spacetime, with the speed of light being 100% of momentum being directed into moving through space made a lot of sense.
Stephen Colbert wrote:Now, like all great theologies, Bill [O'Reilly]'s can be boiled down to one sentence - 'There must be a god, because I don't know how things work.'

Sityl

Name: Ser Sityllan Payne
Posts: 5131
Age: 38

Print view this post

### Re: Why does E=mc^2? (The book by Brian Cox and co.)

THE EQUIVALENCE OF MASS AND ENERGY: http://plato.stanford.edu/entries/equivME/
"Perception does not exhaust our contact with reality; we can think too." – Timothy Williamson

Teuton

Posts: 5461

Print view this post

### Re: Why does E=mc^2? (The book by Brian Cox and co.)

hackenslash wrote:
Joe09 wrote:On reading the thread about Brian Cox, new book i saw that Ani was considered starting a thread on Brian's previous book so that he could ask questions.

Well it reminded me that I had a question so ive jumped the gun and started the thread myself, sorry Ani

Anyway, first question of the day is, where can i find the master equation? I clearly fail at internet searching because i cant find the master equation in a form as simplistic as the one stated in E=mc2.

Thankyou

When Cox is talking about the master equation, he isn't talking about E=mc2, which is the simple form of the equation dealing with the relationship between energy and mass. He's talking about the master equation of the standard model.

Yes i know, i was asking someone to find the masterequation for me on the interwebs because i did a search and came up with squat.

I would liek to see what the terms expand into
Joe09