Where did the energy for the big bang come from?
2377
Is the total energy of the universe zero?
78916
Particles entangled after the big bang
98638
Is the Big Bang defined as before or after Inflation?
4087
Did spacetime start with the Big bang?
49047
Redshifted Photon Energy
129816
Experimental observation of matter/antimatter in the universe
137052
What is pure energy?
2657
Can energy be taken out of the QFT vacuum?
115200
Why does energy have to be emitted in quanta?
33172
Where do electrons in electricity come from?
25938
Before the Big Bang
107695
From where do the permanent magnets get energy from?
141320
Particle energy in general relativity?
17619
How does rest mass become energy?
89301
Is the total energy of the universe constant?
110266
Quarks in a hadron: where does the mass come from?
45669
What is behind the definitions of work and energy?