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The hand held stadimeter was developed by Bradley Allen Fiske (1854–1942), an officer in the United States Navy. It was designed for gunnery purposes, but its first sea tests, conducted in 1895, showed that it was equally useful for fleet sailing and for navigation.
A chassis dynamometer.. A dynamometer or "dyno" is a device for simultaneously measuring the torque and rotational speed of an engine, motor or other rotating prime mover so that its instantaneous power may be calculated, and usually displayed by the dynamometer itself as kW or bhp.
Hand strength testing is frequently used for clinical decision-making and outcome evaluation in evidence-based medicine. It is used to diagnose diseases, to evaluate and compare treatments, to document progression of muscle strength, and to provide feedback during the rehabilitation process.
The Tomytronic 3D is a series of portable, handheld gaming devices released by Tomy.The device featured a strap so the player would be able to wear it around the neck in-between playing.
The Curta is a hand-held mechanical calculator designed by Curt Herzstark. [1] It is known for its extremely compact design: a small cylinder that fits in the palm of the hand. It was affectionately known as the "pepper grinder" or "peppermill" due to its shape and means of operation; its superficial resemblance to a certain type of hand ...
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The Select-a-Game uses a 7 x 16 vacuum fluorescent display (VFD) array of large dots as the main display. [1] It can display two colors, red and blue. These are combined with static overlays for each game.
Now that Dr. Cohen's idea was a full-fledged project with management support, engineers at Arbitron focused on improving the encoding and detection methodology and miniaturization into a hand-held device. Additional capabilities such as motion detection were added later on.