gravitation, particularly general relativity, an energy condition is a generalization of the statement "the energy density of a region of space cannot be negative"...

and in the form of heat and light. Energy is a conserved quantity—the law of conservation of energy states that energy can be converted in form, but not...

of the averaged null energy condition. Quantum effects such as the Casimir effect cannot violate the averaged null energy condition in any neighborhood...

space conditioning, the duct losses can account for 30% of energy consumption. The use of minisplits can result in energy savings in space conditioning as...

cooler climates. According to the International Energy Agency (IEA), as of 2018, 1.6 billion air conditioning units were installed, which accounted for an...

various energy conditions, such as the null energy condition along with the weak, strong, and dominant energy conditions. However, it is known that quantum...

satisfies the dominant energy condition, each such element must be in the causal future of the origin. If any infinite region has null energy-momentum, then the...

energy and momentum that satisfies the dominant energy condition. This is because if the energy and momentum satisfies the dominant energy condition within...

only holds when matter obeys a stronger energy condition, called the strong energy condition, in which the energy is larger than the pressure. All ordinary...

about Gravitational stress-energy tensor The stress–energy tensor, sometimes called the stress–energy–momentum tensor or the energy–momentum tensor, is a tensor...