Concept of energy
Everyone is talking about energy, we have to save energy, we have to use energy more efficiently. All of this popular wisdom relates to energy conversions. For example, it is usually bad when a system generates too much friction because the energy is then radiated as thermal energy and is no longer available for use by the system.
Albert Einstein and energy
Albert Einstein formulated the famous relationship between mass and energy E = mc². She made him famous. He was referring to phenomena in which a body emits radiation. From an absolute point of view, especially with regard to the equivalence of space and time, E = mc² applies universally. To assume a possible damping factor here depending on the speed of movement, as it seems to emerge from other Einstein's equations, is wrong.
Essays on absolute theory about energy
- E = mc²