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  2. Ragone plot - Wikipedia

    en.wikipedia.org/wiki/Ragone_plot

    A Ragone plot (/ r ə ˈ ɡ oʊ n iː / rə-GOH-nee) [1] is a plot used for comparing the energy density of various energy-storing devices. On such a chart the values of specific energy (in W·h/kg) are plotted versus specific power (in W/kg). Both axes are logarithmic, which allows comparing performance

  3. Pencil sharpener - Wikipedia

    en.wikipedia.org/wiki/Pencil_sharpener

    A manual prism sharpener generates long fan-shaped shavings Video of a mechanical pencil sharpener, showing gearing and helical sharpening blades video showing a manual prism sharpener A pencil sharpener (or pencil pointer , or in Ireland a parer or topper [ 1 ] ) is a tool for sharpening a pencil 's writing point by shaving away its worn surface.

  4. Sharpening - Wikipedia

    en.wikipedia.org/wiki/Sharpening

    The substance on the sharpening surface must be harder (hardness is measured on the Mohs scale) than the material being sharpened; diamond is extremely hard, making diamond dust very effective for sharpening, though expensive; less costly, but less hard, abrasives are available, such as synthetic and natural Japanese water-stones. Several ...

  5. Sony Energy Devices Corporation - Wikipedia

    en.wikipedia.org/wiki/Sony_Energy_Devices...

    Sony Energy Devices Corporation handles the development, design and manufacturing of primary and rechargeable cell batteries that can be used for many applications like mobile phones, tablets, laptops, digital cameras, power tools, robotic cleaners, watches, calculators, energy storage for data servers and homes, etc. [2] In 2016, Sony and ...

  6. The best tech for adults over 65 we spotted at CES this year

    www.aol.com/lifestyle/ces-2025-aging-in-place...

    This easy-to-use device was designed to help users stay connected with family, friends, and caregivers, featuring large icons, easy navigation, and support from 24/7 expert customer care.

  7. Backup battery - Wikipedia

    en.wikipedia.org/wiki/Backup_battery

    A valve-regulated lead-acid battery is a battery type that is popular in telecommunications network environments as a reliable backup power source. VRLA batteries are used in the outside plant at locations such as Controlled Environmental Vaults (CEVs), Electronic Equipment Enclosures (EEEs), and huts, and in uncontrolled structures such as ...

  8. AOL Mail

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. The 3 biggest takeaways from CES 2025 [Video] - AOL

    www.aol.com/finance/3-biggest-takeaways-ces-2025...

    Nvidia announced that Toyota is using its technology to power the automaker’s driver assistance capabilities, and Amazon-backed Zoox gave us a test drive around the Las Vegas strip in one of its ...

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