Quantum Physics Quantum Theory Wave Mechanics

Physicist: The very short answer is no: darkness is not a wave.   There are no waves in the dark for very much the same reason that there s no surfing (or ocean waves) in Death Valley.   Darkness, being an absence of electromagnetic waves (light) has nothing to do any waving. There are waves in the ocean, because in the ocean there s stuff to do the waving.   Having nothing to wave, deserts are waveless.   Darkness doesn t involve waves because it s a lack of electromagnetic waves.

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If you define the speed of dark to be the speed at which you could find out about someone turning out the lights, it s exactly the same as the speed of light: 676 million mph, or 7. 99 x 65 8 m/s, or about 6 foot per nanosecond.   For example, if the Sun were to suddenly go out ( ), then the darkness wouldn t get to the Earth for a solid 8 minutes. The somewhat longer answer (that sound like it undermines the short answer, but totally doesn t) is that darkness, while not a wave itself, can be produced by light waves.   Light waves, rather than merely being there or not can add and subtract from each other (at each tiny point in space). You d think something like light and dark would be an either/or sort of thing, like eggs (for example).   But while eggs always add, light (and any other kind of wave) can add or subtract. Rumors are swirling that the LIGO observatory has finally spotted gravitational waves from colliding neutron stars. Update: LIGO released their statement, and while they mention that the observatory has made some promising detections of what the team believes to be gravitational-wave events, they're waiting on further analysis and confirmation before announcing anything definitive.

Some promising gravitational-wave candidates have been identified in data from both LIGO and Virgo during our preliminary analysis, and we have shared what we currently know with astronomical observing partners. We are working hard to assure that the candidates are valid gravitational-wave events, and it will require time to establish the level of confidence needed to bring any results to the scientific community and the greater public. We will let you know as soon we have information ready to share. Last year, a group of astronomers made history when they discovered gravitational waves for the first time, using the highly sensitive LIGO observatory. Over the next year, the astronomers made two more detections of gravitational waves, launching a new branch of astronomy. But all three of these detections have been of colliding black holes, which is exciting but somewhat limiting for gravitational wave astronomy. It's like if our telescopes could only see one specific type of star. Fortunately, LIGO might be about to diversify, if recent rumors are correct. New Scientist is reporting that LIGO may have spotted gravitational waves from a brand new kind of source: neutron stars.

Wave definition of wave by The Free Dictionary

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Add a second source or a pair of slits to create an interference pattern. Below are some stationary images of the electron wave center 'particle'. Quantum mechanics is baffling. On the atomic and subatomic scale, matter seems to behave in ways that we, in the macro world, would generally think of as impossible. Particles can exist in two different places at once, and particle-like interferences in space are thought to leap in and out of existence. The wave function is a representation of all the possible quantum states of a particle. Until the particle is measured, causing the wave function to collapse, that matter really does exist with all possible properties. But there is one theory that does not require you to accept these wacky ideas about matter: The De Broglie–Bohm pilot-wave theory, which is the subject of a great new episode of PBS's Space Time. Pilot-wave theory argues that particles don't also exist as probabilistic waves, but that there are both real particles—which always have definable properties—and real waves influencing how the particles move.

Take the double-slit experiment for example. When light is shone through two parallel slits, the light waves run into each other on the far side and create a pattern—called an interference pattern—on the surface it hits. But when you shoot a single photon particle through the double slits, it still creates the interference pattern even though there is nothing to interfere with it, leading most physicists to conclude that the particle simultaneously exists as a non-physical wave function.