How a Crystal Radio Works
12:58
YouTubeRimstarOrg
How a Crystal Radio Works
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 induces electron flow in the tuning coil, which works with the tuning capacitor, which is ...
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Evolving invention of Fiber Optics 🧵 The invention of fiber optics is one of the most powerful stories in human innovation, tracing how we learned to control and transmit light itself. It began in the 1840s, when Daniel Colladon and John Tyndall demonstrated that light could bend inside a stream of water through total internal reflection — the same principle that powers fiber optics today. In the 1930s, Dr. Heinrich Lamm used tiny glass bundles to transmit images, paving the way for optical ima
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Invention on Instagram: "Installing aviation warning balls on transmission lines is a specialized task that helps make power lines visible to low flying aircraft. These bright marker spheres are commonly placed near airports rivers valleys and mountain passes where pilots need clear visual cues to avoid dangerous obstacles. The work often requires linemen to access long uninterrupted spans where traditional tower to tower climbing would be inefficient or unsafe. To do this linemen use rolling ri
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Invention on Instagram: "Installing aviation warning balls on transmission lines is a specialized task that helps make power lines visible to low flying aircraft. These bright marker spheres are commonly placed near airports rivers valleys and mountain passes where pilots need clear visual cues to avoid dangerous obstacles. The work often requires linemen to access long uninterrupted spans where traditional tower to tower climbing would be inefficient or unsafe. To do this linemen use rolling ri
Instagraminvention
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Invention on Instagram: "The Casio QL-10 Calculighter was introduced in 1978 as a compact electronic calculator with a built in lighter housed in the same body. It combined a standard late 1970s pocket calculator layout with a mechanical ignition and flame port mounted on the side of the device. At the time, Casio was actively experimenting with multifunction consumer electronics that blended everyday tools into single portable products. From an engineering standpoint, the QL-10 reflects the des
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