## shivaniits 3 years ago how inertia could be measure of en energy of the body"...?? and further how could we establish equivalence between mass and energy....??

1. shivaniits

actually saw the article einstein's work on this topic and got confused here's the link: http://www.fourmilab.ch/etexts/einstein/E_mc2/www/...!!

2. shivaniits

3. rajathsbhat

the URL doesn't seem to be working.

4. shivaniits

actually i found it in wiki's article on mass-energy equivalence giving another try: http://www.fourmilab.ch/etexts/einstein/E_mc2/www/

5. rajathsbhat

It works now :)

6. shivaniits

7. rajathsbhat

Sorry, i (too) can't understand a word in that page :\

8. shivaniits

amm..ok..could you tell me something abt mass-energy equivalence...!!

9. shivaniits

@UnkleRhaukus ...i think your calculus is strong could you help me on that!!

10. UnkleRhaukus

i cant say i understand this paper

11. shivaniits

do know somebody who can help me on this!! or mass-energy equivalence..?? anyways...thanks!!

12. shivaniits

13. rajathsbhat

i think mass-energy equivalence is pretty simple to understand. Basically, the equation \(E=mc^{2}\) tells you that the mass of a body is also the measure of the total energy contained in that body. This equation also means that we can convert mass into energy. The amount of energy you get from a mass "m" is \(mc^{2}\).

14. shivaniits

but mass on the whole is conserved...right....!!..it can't be created can't be destroyed and similar is case of energy too..so how do we come at this ...?? do u know derivation of this relation between mass-energy equivalence..!!

15. rajathsbhat

your textbooks are wrong. The law of conservation of mass has been discarded.

16. punnus

Have you ever heard of relativistic theory.

17. punnus

What you know depends on your knowledge of classical mechanic. When you move to the domain of Quantum mechanic, then you need to drop the ideas of classical theory

18. shivaniits

amm..ok but is there any sound proof describing equivalence relation...wrt to special theory of relativity...??

19. punnus

Which level of education have you completed. I am not trying to judge you but i think you will find answer in books prescribed at university level. So before we turn ourself there I just wanted to know what recent qualification do you have

20. shivaniits

actually completed my high school and doing engg in electronics..i also want to know abt some good sources...where i can get that answers!!

21. ghazi

@shivaniits first of all...i would suggest you to go through Lorentz transformation and it's derivation ...i believe you might have studied that ...Now, to get a broader view of mass energy relation you can refer to loads of material available at internet...just google mass energy equivalence ...also you can find your answer in CHAPTER 15 of FEYNMAN lectures of physics VOL 2.....and besides that as far as inertia is concerned ..just imagine that body at rest has it's own energy that is the potential energy of the body...now to make the body move you need to overcome that energy....so somewhere inertia can be related as energy possessed by a body that opposes the application of external energy. But it is not so. And fundamentally Inertia has no definition of it's own...it is also a property ....like we define energy as property.

22. shivaniits

okk..so where could i find lorentz transformation in detail....!!

23. ghazi

VOL 1 of Feynman's lecture on physics....chapter 15 ...besides that it is also available on internet ....and that's VOL 1 in my last comment...by mistake i wrote it VOL 2