how does a work

    • How does television (TV) work?

      2021-6-1 · How a cathode-ray tube (CRT) TV works. An antenna (aerial) on your roof picks up radio waves from the transmitter. With satellite TV, the signals come from a satellite dish mounted on your wall or roof. With cable TV, the signal comes to you via …

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    • HowStuffWorks

      HowStuffWorks explains thousands of topics, ranging from the flu to black holes to conspiracy theories, with video and illustrations so you can learn how everything works.

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    • How does a compass work? | Live Science

      2010-7-28 · How it works. A compass points north because all magnets have two poles, a north pole and a south pole, and the north pole of one magnet is attracted to …

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    • How do Photovoltaics Work? | Science Mission Directorate

      2021-11-1 · Photovoltaics is the direct conversion of light into electricity at the atomic level. Some materials exhibit a property known as the photoelectric effect that causes them to absorb photons of light and release electrons. When these free electrons are captured, an electric current results that can be used as electricity.

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    • How Does a Parliamentary Government Work?

      2021-4-22 · A parliamentary government is a system in which the powers of the executive and legislative branches are intertwined as opposed to being held separate as a check against each other''s power, as the Founding Fathers of the United States demanded in the U.S. Constitution fact, the executive branch in a parliamentary …

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    • How does a Microscope work

      How Does a Microscope Work? - Electron As previously mentioned, optical microscopes are limited in resolution by the frequency of the light waves. Electron guns emit a flow of electrons of a considerably shorter wave length than visible light and this fact allows …

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    • How Does a Catapult Work? | Sciencing

      2020-2-1 · The ballista, the mangonel and the trebuchet represent the three basic designs of catapults, which are devices that convert potential energy from springs and the like into hurling a projectile through the air. Catapult physics exemplify the use of …

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    • How does impeachment work? A quick TED explainer

      2019-9-27 · So, how does the process work? Despite how most people use the term, impeachment does not mean removing a person from office. Nope, this is not what impeachment means. Instead, impeachment refers to the formal accusation that launches a trial.

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    • How Does a Database Work? | Let''s Build a Simple Database

      2020-2-24 · How does rolling back a transaction work? How are indexes formatted? When and how does a full table scan happen? What format is a prepared statement saved in? In short, how does a database work? I''m building a clone of sqlite from scratch in C in order to understand, and I''m going to document my process as I go.

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    • How does a Magnifying Glass Work? (with pictures)

      A magnifying glass may be very helpful for individuals who suffer with vision issues. The earliest magnifying glass recorded was created by the master scientist Alhazen in 1021. He published a comprehensive work, The Book of Optics, which laid out many …

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    • What is Artificial Intelligence? How Does AI Work? | Built In

      How Does Artificial Intelligence Work? AI Approaches and Concepts. Less than a decade after breaking the Nazi encryption machine Enigma and helping the Allied Forces win World War II, mathematician Alan Turing changed history a second time with a simple question: "Can machines think?"

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    • Understanding How Vaccines Work | CDC

      How Vaccines Work. Vaccines help develop immunity by imitating an infection. This type of infection, however, almost never causes illness, but it does cause the immune system to produce T-lymphocytes and antibodies. Sometimes, after getting a vaccine, the …

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    • How speakers work: The basics to start

      2021-3-12 · How speakers work: the basics. A speaker driver is the raw electroacoustic component that makes a loudspeaker work. As a transducer, its function is to transform energy from one form to another. Specifically, this transducer transforms the amplified …

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    • How does a modulus(%) work? « How-To Geek Forums

      The modulo of "a" divided by "b" is equal to the remainder after the division. The example you provided, 3 % 7 is literally saying "the remainder when 3 is divided by 7", which is expressed incorrectly. This my be why the 3 is returned. 7 % 3 should return 1, since 7/3 = 2, with a remainder of 1, making 1 the modulo. I hope this helps explain.

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    • How Does A Megaphone Work?

      2021-4-9 · How does it Work? The secret of the megaphone lies in its conical shape. The shape helps it in amplifying the voice for several reasons. Firstly, the voice gets directed to the target because of this shape. When we speak, the sound emanates from our mouth in every direction at once. Just a part of our output moves in the direction of our ...

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    • How does a computer mouse work?

      2020-10-31 · How a ball computer mouse works. How does a mouse like this actually work? As you move it across your desk, the ball rolls under its own weight and pushes against two plastic rollers linked to thin wheels (numbered 6 and 7 in the photo). One …

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    • How does a voltaic cell work?

      2020-12-1 · How does a voltaic cell work? A voltaic cell is a device which converts chemical energy to electrical energy.; The chemical reactions that take place inside the cell cause the flow of electrons and hence, electricity is produced. A simple voltaic cell is made by placing two different metals in contact with an electrolyte.The metals act as the electrodes for the voltaic cell.

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    • How Do Pressure Cookers Work? The Science Behind Them

      2019-10-17 · Pressure cookers are a convenient kitchen appliance used to cook food quickly with the power of steam pressure. Even without pressure steam conducts heat and cooks faster than dry air, but with increased pressure, the steam can …

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    • How does the brain work?

      2009-10-8 · The brain works like a big computer. It processes information that it receives from the senses and body, and sends messages back to the body. But the brain can do much more than a machine can: humans think and experience emotions with their brain, and it is the root of human intelligence.

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    • How Do Cell Phones Work? – Pong Pulse

      2014-12-20 · How Do Cell Phones Work? With worldwide mobile subscriptions estimated to be around 7 billion in 2014, cell phones have become a universal and indispensable tool for modern life. With a cell phone, you can talk to anybody on the planet from …

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    • MIT School of Engineering | » How does a battery work?

      2012-5-1 · How does a battery work? Your watch, laptop, and laser-pointer are all powered by the same thing: chemistry… By Mary Bates. There are a lot of different kinds of batteries, but they all function based on the same underlying concept.

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    • How Telephones Work | HowStuffWorks

      2000-4-1 · When two people pick up the phones together, they can talk to each other just fine. This sort of arrangement will work at distances of up to several miles apart. The only thing your little intercom cannot do is ring the phone to tell the person at the other end to pick up. The "ring" signal is a 90-volt AC wave at 20 hertz (Hz).

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    • How speakers work: The basics to start

      2021-3-12 · How speakers work: the basics. A speaker driver is the raw electroacoustic component that makes a loudspeaker work. As a transducer, its function is to …

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    • How does a computer work?

      2021-5-2 · Powering on the computer. When you first press the power button, the computer sends a signal to the computer power supply, which converts the AC (alternating current) to DC (direct current). This power supplies the computer and its components with the proper amount of voltage and electricity. Once the computer and its components have ample ...

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    • How Do Pressure Cookers Work? The Science Behind Them

      2019-10-17 · Pressure cookers are a convenient kitchen appliance used to cook food quickly with the power of steam pressure. Even without pressure steam conducts heat and cooks faster than dry air, but with increased pressure, the steam can rise above …

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    • How Does it Work?

      2015-6-22 · How Does Plan B® Work? Plan B® (levonorgestrel) may prevent pregnancy by temporarily stopping the release of an egg from a woman''s ovary, or it may prevent fertilization. It may also prevent a fertilized egg from attaching to the uterus .

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    • How Does A Compact Disc (or DVD) Work?

      2021-5-14 · How does a CD player work? There are two main components in a CD player that help read a CD: a tiny laser beam known as a semiconductor diode laser and an electronic light detector, basically a tiny photoelectric cell. When you turn on the CD …

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