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  2. Line array - Wikipedia

    en.wikipedia.org/wiki/Line_array

    A line array is a loudspeaker system that is made up of a number of usually identical loudspeaker elements mounted in a line and fed in phase, to create a near-line source of sound. The distance between adjacent drivers is close enough that they constructively interfere with each other to send sound waves farther than traditional horn-loaded ...

  3. Electrical resistance survey - Wikipedia

    en.wikipedia.org/wiki/Electrical_resistance_survey

    A disadvantage of the systems described above is a relatively slow rate of survey. One solution to this has been wheeled arrays. These use spiked wheels or metal disks as electrodes, and may use a square array (a variation of the Wenner array) to avoid the encumbrance of a trailing cable. Wheeled arrays may be towed by vehicles or by human ...

  4. 50 DIY Projects That Look Like Witchcraft But Are Actually ...

    www.aol.com/80-times-something-people-made...

    According to Statista, in the last couple of years, roughly a quarter of Americans engaged in DIY and arts and crafts as a hobby. #4 Handmade Stained Glass Book Ends With Mushrooms Image credits ...

  5. List of open-source hardware projects - Wikipedia

    en.wikipedia.org/wiki/List_of_open-source...

    Twibright RONJA – free-space optic system, DIY in a garage and maker culture, 10 Mbit/s full duplex/1.4 km; SatNOGS – software-hardware project of a global low Earth orbit satellite ground station, including for data and Internet

  6. Sound reinforcement system - Wikipedia

    en.wikipedia.org/wiki/Sound_reinforcement_system

    A large line array with separate subs and a smaller side fill line array. A simple and inexpensive PA loudspeaker may have a single full-range loudspeaker driver, housed in a suitable enclosure. More elaborate, professional-caliber sound reinforcement loudspeakers may incorporate separate drivers to produce low, middle, and high frequency sounds.

  7. Sensor array - Wikipedia

    en.wikipedia.org/wiki/Sensor_array

    A sensor array is a group of sensors, usually deployed in a certain geometry pattern, used for collecting and processing electromagnetic or acoustic signals. The advantage of using a sensor array over using a single sensor lies in the fact that an array adds new dimensions to the observation, helping to estimate more parameters and improve the estimation performance.

  8. Hackaday - Wikipedia

    en.wikipedia.org/wiki/Hackaday

    Hackaday was founded in 2004 by Phillip Torrone as a web magazine for Engadget, devoted to publishing and archiving "the best hacks, mods and DIY projects from around web". [2] Hackaday was since split from Engadget and its former parent company Weblogs, Inc. by its at the time owner Jason Calacanis .

  9. Passive electronically scanned array - Wikipedia

    en.wikipedia.org/wiki/Passive_electronically...

    The first module, a linear array, was completed in 1960. It formed the basis of the AN/FPS-85. [1] Starting in the 1960s, new solid-state devices capable of delaying the transmitter signal in a controlled way were introduced. That led to the first practical large-scale passive electronically scanned array, or simply phased array radar.