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: "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