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  2. Take 20% Off Raycon Earbuds, Headphones and Speakers ... - AOL

    www.aol.com/entertainment/20-off-raycon-earbuds...

    These Basic Earbuds. The Work Earbuds Classic. Raycon. For everyday wear that’s easy to take in and out, these buds are the perfect pick! See it! Get The Work Earbuds Classic (originally $120 ...

  3. File:Test.pdf - Wikipedia

    en.wikipedia.org/wiki/File:Test.pdf

    Description. Test.pdf. This is a temporary file for testing of correct rendering of PDF files. This file can be modified by anyone, to test their own PDF documents. If you suspect a problem with the rendering of your document, then upload it the first time here under the name Test.pdf. It's easier than delete an upload.

  4. List of file signatures - Wikipedia

    en.wikipedia.org/wiki/List_of_file_signatures

    List of file signatures. This is a list of file signatures, data used to identify or verify the content of a file. Such signatures are also known as magic numbers or Magic Bytes. Many file formats are not intended to be read as text. If such a file is accidentally viewed as a text file, its contents will be unintelligible.

  5. EICAR test file - Wikipedia

    en.wikipedia.org/wiki/EICAR_test_file

    The file is a text file of between 68 and 128 bytes that is a legitimate .com executable file (plain x86 machine code) that can be run by MS-DOS, some work-alikes, and its successors OS/2 and Windows (except for 64-bit due to 16-bit limitations). The EICAR test file will print "EICAR-STANDARD-ANTIVIRUS-TEST-FILE!" when executed and then will stop.

  6. Coupon collector's problem - Wikipedia

    en.wikipedia.org/wiki/Coupon_collector's_problem

    Coupon collector's problem. In probability theory, the coupon collector's problem refers to mathematical analysis of "collect all coupons and win" contests. It asks the following question: if each box of a given product (e.g., breakfast cereals) contains a coupon, and there are n different types of coupons, what is the probability that more ...

  7. 1951 USAF resolution test chart - Wikipedia

    en.wikipedia.org/wiki/1951_USAF_resolution_test...

    A 1951 USAF resolution test chart is a microscopic optical resolution test device originally defined by the U.S. Air Force MIL-STD-150A standard of 1951. The design provides numerous small target shapes exhibiting a stepped assortment of precise spatial frequency specimens. It is widely used in optical engineering laboratory work to analyze and ...

  8. Fatigue testing - Wikipedia

    en.wikipedia.org/wiki/Fatigue_testing

    Each 16 hour flight took 11 minutes to simulate on the fatigue test rig. [1] Fatigue testing is a specialised form of mechanical testing that is performed by applying cyclic loading to a coupon or structure. These tests are used either to generate fatigue life and crack growth data, identify critical locations or demonstrate the safety of a ...

  9. AOL

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    AOL is a leading online service provider that offers free email, news, entertainment, and more. With AOL, you can access your email from any device, customize your inbox, and enjoy a secure and reliable email experience. Sign in to AOL today and discover the benefits of AOL Mail.