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  2. List of accidents and incidents involving military aircraft ...

    en.wikipedia.org/wiki/List_of_accidents_and...

    The roll out was straight for 800-1,000 feet before the C-119 veered to the right and into the water, with the cockpit filling to about the level of the side window. The two crew evacuated through the top hatch, slid off the left wing and swam ashore. Although the plane had stopped basically intact, wave action overnight destroyed the airframe.

  3. History of the transistor - Wikipedia

    en.wikipedia.org/wiki/History_of_the_transistor

    In one instance a non-working system started working when placed in water. The electrons in any one piece of the crystal would migrate about due to nearby charges. Electrons in the emitters, or the "holes" in the collectors, would cluster at the surface of the crystal, where they could find their opposite charge "floating around" in the air (or ...

  4. Engineering change order - Wikipedia

    en.wikipedia.org/wiki/Engineering_Change_Order

    If a change can be implemented by modifying only a few of the layers (typically metal) then the cost is much less than it would be if the design was re-built from scratch. This is because starting the process from the beginning will almost always require new photomasks for all layers, and each of the 20 or so masks in a modern semiconductor ...

  5. USB - Wikipedia

    en.wikipedia.org/wiki/USB

    USB was designed to standardize the connection of peripherals to personal computers, both to exchange data and to supply electric power. It has largely replaced interfaces such as serial ports and parallel ports and has become commonplace on various devices.

  6. Stainless steel - Wikipedia

    en.wikipedia.org/wiki/Stainless_steel

    Stainless steel can be rolled into sheets, plates, bars, wire, and tubing. These can be used in cookware , cutlery , surgical instruments , major appliances , vehicles, construction material in large buildings, industrial equipment (e.g., in paper mills , chemical plants , water treatment ), and storage tanks and tankers for chemicals and food ...

  7. Contact lens - Wikipedia

    en.wikipedia.org/wiki/Contact_lens

    Artist's impression of Leonardo's method for neutralizing the refractive power of the cornea. Leonardo da Vinci is frequently credited with introducing the idea of contact lenses in his 1508 Codex of the eye, Manual D, [9] wherein he described a method of directly altering corneal power by either submerging the head in a bowl of water or wearing a water-filled glass hemisphere over the eye.