has there been any developments on what energy really _is_?
49514
Do we have a better understanding of what energy is since Feynman's time?
43436
What exactly is a photon?
119581
How to understand whether potential energy increases or decreases?
68027
Conservation of Energy vs Expansion of Space
99735
Are there any theoretical limits on the energy of a photon?
84892
What truly is mass, and is there a direct way to measure it?
147954
Relation between power and energy
119004
Proof of conservation of energy?
16282
Coincidence, purposeful definition, or something else in formulas for energy
52598
How can I interpret "energy" in signals?
115378
Is it possible to generate electric energy from the radiation of radioactive materials
75159
What is precisely the energy scale of a process?
141320
Particle energy in general relativity?
116819
Is expression for law of equipartion of energy valid for real gas?
131167
Kinetic energy of the object, but Potential energy of the system: Why is it so?
48440
Quantum made easy: so what *is* quantum mechanics all about?
54113
Does the potential energy of a single object exist?