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  • 02:09 How Does A Turntable Work?

    How Does A Turntable Work?

    473 views / 0 likes - added

    240 precision built parts and two interlocking zinc alloy spinning platters work in unison to play crisp tunes. The stylus sits on an arm that vibrates a copper coil that helps generate an electrical current to power the mini amplifier. Machines: How They

  • 05:55 Chladni plates & mechanical driver- cheap! //  Homemade Science with Bruce Yeany

    Chladni plates & mechanical driver- cheap! // Homemade Science with Bruce Yeany

    519 views / 0 likes - added

    The use of Chladni plates can make a wonderful demonstration but can be rather expensive for equipment that may have limited use in the average classroom. This video shows how I set up the experiment using a free online tone generator on my computer, a di

  • 04:48 Homemade speaker made with a toy motor /// Homemade Science with Bruce Yeany

    Homemade speaker made with a toy motor /// Homemade Science with Bruce Yeany

    606 views / 2 likes - added

    This homemade speaker uses a toy motor instead of a coil of wire and a magnet.The amplifier wires are simply attached to a toy motor to make it vibrate. Use it to make a conductor speaker that only you can hear or attach it to a paper plate to make a simp

  • 06:53 Transistors, How do they work ?

    Transistors, How do they work ?

    273 views / 0 likes - added

    Dear friends, Please support us at Patreon, so that we can continue our free educational service https://www.patreon.com/LearnEngineering The invention of transistors revolutionized human civilization like no other technology. This video demonstrates work

  • 11:38 Op Amp Circuits: Analog Computers from operational amplifiers

    Op Amp Circuits: Analog Computers from operational amplifiers

    249 views / 0 likes - added

    Adders, integrators, differentiators, buffers, and a basic introduction to op amp circuits. My Patreon Page: https://www.patreon.com/EugeneK

  • 21:03 How To Make A Crystal Radio - No Batteries

    How To Make A Crystal Radio - No Batteries

    178 views / 0 likes - added

    How to make a robust crystal radio. DIY step by step. No special tools or skills needed. Most parts can be had from recycled things. The purchased parts run about $3. Good during power failures, when batteries are not available, for prepping and similar.

  • 12:58 How a Crystal Radio Works

    How a Crystal Radio Works

    222 views / 0 likes - added

    Full details of how a crystal radio works, right down to the electron level. We start with a demonstration of all the parts in action, showing how the radio waves interact with the antenna and antenna coil to produce a fluctuating magnetic field, which in

  • 07:17 Game Of Thrones Theme by Legendary Guitarists

    Game Of Thrones Theme by Legendary Guitarists

    120 views / 0 likes - added

    Watch as Game Of Thrones creator Dan Weiss, Tom Morello of Audioslave/Rage Against The Machine, Scott Ian of Anthrax, Nuno Bettencourt of Extreme, Brad Paisley, and Game Of Thrones composer Ramin Djawadi shred on the all-new Sigil Collection Guitars from

  • 04:59 Visualizing Ultrasound with Schlieren Optics Part I

    Visualizing Ultrasound with Schlieren Optics Part I

    57 views / 0 likes - added

    Part 1 of 3. We use a schlieren optics system with a strobing light source to visualize ultrasonic waves emitted by a transducer driven at a frequency of 28 kHz.Images employing schlieren optics are very sensitive to changes in the density of air. Since s


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