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  2. Drop test - Wikipedia

    en.wikipedia.org/wiki/Drop_test

    A drop test is a method of testing the in-flight characteristics of prototype or experimental aircraft and spacecraft by raising the test vehicle to a specific altitude and then releasing it. Test flights involving powered aircraft, particularly rocket-powered aircraft , may be referred to as drop launches due to the launch of the aircraft's ...

  3. File:Pendant drop test.svg - Wikipedia

    en.wikipedia.org/wiki/File:Pendant_drop_test.svg

    2008-11-05 03:18 LightYear 217×353 (10463 bytes) Modification of original image to better reflect measurements used in a pendant drop test. Currently only used in [[Drop (liquid)]] and article will be updated too.

  4. Hook gauge - Wikipedia

    en.wikipedia.org/wiki/Hook_Gauge

    A hook gauge or needle gauge is a measuring device used by crocheters and knitters to test the sizes of particular crochet hooks and knitting needles. Hook gauges are usually made of plastic or aluminum and have sizing holes from 2mm to 11mm diameter. A hook gauge also functions as a ruler to test the size of a test swatch of handmade fabric. [1]

  5. Drop (liquid) - Wikipedia

    en.wikipedia.org/wiki/Drop_(liquid)

    A drop or droplet is a small column of liquid, bounded completely or almost completely by free surfaces. A drop may form when liquid accumulates at the end of a tube or other surface boundary, producing a hanging drop called a pendant drop. Drops may also be formed by the condensation of a vapor or by atomization of a larger mass of solid ...

  6. Disk diffusion test - Wikipedia

    en.wikipedia.org/wiki/Disk_diffusion_test

    The disk diffusion test (also known as the agar diffusion test, Kirby–Bauer test, disc-diffusion antibiotic susceptibility test, disc-diffusion antibiotic sensitivity test and KB test) is a culture-based microbiology assay used in diagnostic and drug discovery laboratories. In diagnostic labs, the assay is used to determine the susceptibility ...

  7. Maddox rod - Wikipedia

    en.wikipedia.org/wiki/Maddox_rod

    The test is based on the principle of diplopic projection. [1] Dissociation of the deviation is brought about by presenting a red line image to one eye and a white light to the other, while prisms are used to superimpose these and effectively measure the angle of deviation (horizontal and vertical).

  8. Why to avoid cleaning, laundry on New Year's - AOL

    www.aol.com/why-avoid-cleaning-laundry-years...

    Why does the ball drop in New York City? Back in the 1800s, only the rich had personal clocks and watches. So, a time ball would fall at a certain hour to inform the masses.

  9. Indicator (distance amplifying instrument) - Wikipedia

    en.wikipedia.org/wiki/Indicator_(distance...

    Ideal test indicator pushed. Prior to modern geared dial mechanisms, test indicators using a single lever or systems of levers were common. The range and precision of these devices were generally inferior to modern dial type units, with a range of 10/1000 inch to 30/1000 inch, and precision of 1/1000 inch being typical.