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

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    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. Bifacial solar cells - Wikipedia

    en.wikipedia.org/wiki/Bifacial_solar_cells

    In 1997, Glunz et al., at the Fraunhofer Institute for Solar Energy Systems, produced n + pn + 4 cm 2 devices with 20.6% front and 20.2% rear conversion efficiencies. This was a double junction cell (one of the junctions not connected or "floating") with the metal grid only on the rear surface, i.e. operating an interdigitated back contact (IBC ...

  4. List of mnemonics - Wikipedia

    en.wikipedia.org/wiki/List_of_mnemonics

    A mnemonic to remember which way to turn common (right-hand thread) screws and nuts, including light bulbs, is "Righty-tighty, Lefty-loosey"; another is "Right on, Left off". [8] : 165 For the OSI Network Layer model P lease D o N ot T hrow S ausage P izza A way correspond to the Physical, Datalink, Network, Transport, Session, Presentation and ...

  5. 20 (number) - Wikipedia

    en.wikipedia.org/wiki/20_(number)

    Twenty is a pronic number, as it is the product of consecutive integers, namely 4 and 5. [3] It is the third composite number to be the product of a squared prime and a prime (and also the second member of the 22 × q family in this form). It has an aliquot sum of 22; a semiprime, within an aliquot sequence of four composite numbers (20, 22, 14 ...

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  7. General Electric YF120 - Wikipedia

    en.wikipedia.org/wiki/General_Electric_YF120

    History Development General Electric (GE) began developing the GE37, which would become basis of the XF120 and YF120, for the Joint Advanced Fighter Engine (JAFE) program in the early 1980s aimed at supplying the powerplant for the Air Force's Advanced Tactical Fighter (ATF); JAFE was later renamed the ATF Engine (ATFE) program. The core technology used in the F120 design was developed during ...

  8. JNR Class EF58 - Wikipedia

    en.wikipedia.org/wiki/JNR_Class_EF58

    The later years. In 1984, 64 out of 172 EF58 locos built were still in service or temporary storage. However, they were withdrawn en masse from Tokaido and Sanyo Main Line freight duties in 1984, and by 1987, immediately prior to privatization of JNR, there were just four members of the class (EF58 61, 89, 122, and 150) remaining in service.

  9. JNR Class EF62 - Wikipedia

    en.wikipedia.org/wiki/JNR_Class_EF62

    The Class EF62 (EF62形) is a Co′Co′ wheel arrangement DC electric locomotive type built between 1962 and 1969 for use hauling passenger and freight on the Shinetsu Main Line and particularly over the extreme 66.7‰, (6.67%), gradient of the Usui Pass between Yokokawa and Karuizawa.