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2. Negative energy - Wikipedia

   en.wikipedia.org/wiki/Negative_energy

   The negative-energy particle then crosses the event horizon into the black hole, with the law of conservation of energy requiring that an equal amount of positive energy should escape. In the Penrose process , a body divides in two, with one half gaining negative energy and falling in, while the other half gains an equal amount of positive ...

3. Vacuum - Wikipedia

   en.wikipedia.org/wiki/Vacuum

   As a result, QED vacuum contains vacuum fluctuations (virtual particles that hop into and out of existence), and a finite energy called vacuum energy. Vacuum fluctuations are an essential and ubiquitous part of quantum field theory. Some experimentally verified effects of vacuum fluctuations include spontaneous emission and the Lamb shift. [15]

4. Vacuum cleaner - Wikipedia

   en.wikipedia.org/wiki/Vacuum_cleaner

   A vacuum cleaner, also known simply as ... and shown to be more energy-efficient than the vacuum method. ... a typical domestic model has a suction of about negative ...

5. Vacuum energy - Wikipedia

   en.wikipedia.org/wiki/Vacuum_energy

   The field strength of vacuum energy is a concept proposed in a theoretical study that explores the nature of the vacuum and its relationship to gravitational interactions. The study derived a mathematical framework that uses the field strength of vacuum energy as an indicator of the bulk (spacetime) resistance to localized curvature.

6. Dirac sea - Wikipedia

   en.wikipedia.org/wiki/Dirac_sea

   It still lowers the energy of the vacuum, but in this point of view it does so by creating a negative energy object. This reinterpretation only affects the philosophy. To reproduce the rules for when annihilation in the vacuum gives zero, the notion of "empty" and "filled" must be reversed for the negative energy states.

7. 10 Genius Ways to Use Your Vacuum (Besides Just Cleaning Your ...

   www.aol.com/10-genius-ways-vacuum-besides...

   Pull your dryer away from the wall, disconnect the duct and use the hose of your vacuum cleaner and crevice tool to reach as far into the duct and back of the dryer as far as you can. 9. Yoga mat

8. False vacuum - Wikipedia

   en.wikipedia.org/wiki/False_vacuum

   A true vacuum is stable because it is at a global minimum of energy, and is commonly assumed to coincide with the physical vacuum state we live in. It is possible that a physical vacuum state is a configuration of quantum fields representing a local minimum but not global minimum of energy. This type of vacuum state is called a "false vacuum".

9. Why negative energy prices are becoming more common in Europe

   www.aol.com/why-negative-energy-prices-becoming...

   Negative energy prices are becoming more common across Europe. The latest instance occurred in Germany on Tuesday. Prices generally slip into the red when both solar and wind generation is strong ...