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  2. Garage door opener - Wikipedia

    en.wikipedia.org/wiki/Garage_door_opener

    The electric overhead garage door opener was invented by C.G. Johnson in 1926 in Hartford City, Indiana. [1] Electric Garage Door openers did not become popular until Era Meter Company of Chicago offered one after World War II where the overhead garage door could be opened via a key pad located on a post at the end of the driveway or a switch inside the garage.

  3. Piping and instrumentation diagram - Wikipedia

    en.wikipedia.org/wiki/Piping_and_instrumentation...

    Piping and instrumentation diagram of pump with storage tank. Symbols according to EN ISO 10628 and EN 62424. A more complex example of a P&ID. A piping and instrumentation diagram (P&ID) is defined as follows: A diagram which shows the interconnection of process equipment and the instrumentation used to control the process.

  4. Mechanical systems drawing - Wikipedia

    en.wikipedia.org/wiki/Mechanical_systems_drawing

    The schematic is a line diagram, not necessarily to scale, that describes interconnection of components in a system. The main features of a schematic drawing show: A two dimensional layout with divisions that show distribution of the system between building levels, or an isometric-style layout that shows distribution of systems across ...

  5. Why Israel captured Syria’s tallest mountain just hours after ...

    www.aol.com/why-israel-captured-syria-tallest...

    Israel wasted no time after Bashar al-Assad’s fall to bomb all the Syrian military assets it wanted to keep out of the rebels’ hands – striking nearly 500 targets, destroying the navy, and ...

  6. Hall effect sensor - Wikipedia

    en.wikipedia.org/wiki/Hall_effect_sensor

    The range of a given feedthrough sensor may also be extended upward and downward by appropriate wiring. To extend the range to lower currents, multiple turns of the current-carrying wire may be made through the opening, each turn adding to the sensor output the same quantity; when the sensor is installed onto a printed circuit board, the turns ...

  7. Goldbelly is the best place to buy food gifts — and ...

    www.aol.com/lifestyle/goldbelly-black-friday...

    Goldbelly sells some of the best local treats, and during Black Friday, it's all 20% off. Shop pies, cupcakes, roasts, and more.

  8. Load cell - Wikipedia

    en.wikipedia.org/wiki/Load_cell

    The digital capacitive technology is based on a non-contacting ceramic sensor mounted inside the load cell body. As the load cell contains no moving parts and the ceramic sensor is not in contact with the load cell body, the load cell tolerates very high overloads (up to 1000%), sideloads, torsion, and stray welding voltages. [3]

  9. Pirani gauge - Wikipedia

    en.wikipedia.org/wiki/Pirani_gauge

    A special form of the Pirani gauge is the pulsed Pirani vacuum gauge where the sensor wire is not operated at a constant temperature, but is cyclically heated up to a certain temperature threshold by an increasing voltage ramp. When the threshold is reached, the heating voltage is switched off and the sensor cools down again.