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  2. Hail cannon - Wikipedia

    en.wikipedia.org/wiki/Hail_cannon

    A hail cannon is a shock wave generator claimed to disrupt the formation of hailstones in the atmosphere. These devices frequently engender conflict between farmers and neighbors when used, [ 1 ] because they are loudly and repeatedly fired every 1 to 10 seconds while a storm is approaching and until it has passed through the area, yet there is ...

  3. Wave disk engine - Wikipedia

    en.wikipedia.org/wiki/Wave_disk_engine

    As with all heat engines, the efficiency of a wave disk engine is governed by the temperature difference between the hot and cold sides (see Carnot's theorem).Compared to a conventional piston engine (reciprocating engine), a wave disk engine works at higher peak temperature, which theoretically makes it more efficient.

  4. Detonator - Wikipedia

    en.wikipedia.org/wiki/Detonator

    The initial shock wave is created by vaporizing a length of a thin wire by an electric discharge. A new development is a slapper detonator, which uses thin plates accelerated by an electrically exploded wire or foil to deliver the initial shock. It is in use in some modern weapons systems.

  5. Shock wave - Wikipedia

    en.wikipedia.org/wiki/Shock_wave

    In physics, a shock wave (also spelled shockwave), or shock, is a type of propagating disturbance that moves faster than the local speed of sound in the medium. Like an ordinary wave, a shock wave carries energy and can propagate through a medium, but is characterized by an abrupt, nearly discontinuous, change in pressure , temperature , and ...

  6. Argon flash - Wikipedia

    en.wikipedia.org/wiki/Argon_flash

    Argon flash, also known as argon bomb, argon flash bomb, argon candle, and argon light source, is a single-use source of very short and extremely bright flashes of light. The light is generated by a shock wave in argon or, less commonly, another noble gas. The shock wave is usually produced by an explosion. Argon flash devices are almost ...

  7. Sonic boom - Wikipedia

    en.wikipedia.org/wiki/Sonic_boom

    A sonic boom produced by an aircraft moving at M=2.92, calculated from the cone angle of 20 degrees. Observers hear nothing until the shock wave, on the edges of the cone, crosses their location. Mach cone angle NASA data showing N-wave signature. [1] Conical shockwave with its hyperbola-shaped ground contact zone in yellow

  8. AOL reviewed: This mini red light therapy device is an easy ...

    www.aol.com/lifestyle/solawave-mini-review...

    Plus, after a few weeks of use, I saw noticeable improvements in my complexion and skin radiance. Overall, I think the Solawave 2-in-1 Skincare Mini is a great skincare device at a fair price point.

  9. Shock tube - Wikipedia

    en.wikipedia.org/wiki/Shock_tube

    The size and method of producing the shock wave determine the peak and duration of the pressure wave it produces. Thus, shock tubes can be used as a tool used to both create and direct blast waves at a sensor or an object in order to imitate actual explosions and the damage that they cause on a smaller scale, provided that such explosions do ...