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  2. Calypso (electronic ticketing system) - Wikipedia

    en.wikipedia.org/wiki/Calypso_(electronic...

    Calypso is an international electronic ticketing standard for microprocessor contactless smart cards, originally designed by a group of transit operators from 11 countries including Belgium, Canada, France, Germany, Italy, Latvia, México, Portugal and others. It ensures multi-sources of compatible products, and allows for interoperability ...

  3. Calcium battery - Wikipedia

    en.wikipedia.org/wiki/Calcium_battery

    Calcium batteries are one of many candidates to replace lithium-ion battery technology. It is a multivalent battery.Key advantages are lower cost, earth abundance (41,500 ppm), higher energy density, high capacity and high cell voltage, [12] and potentially higher power density.

  4. Flexible battery - Wikipedia

    en.wikipedia.org/wiki/Flexible_battery

    Carbon nanotube electrodes have been reported too: pristine, [7] and combined with Li 4 Ti 5 O 12, LiCoO 2, [8] or SnO 2. [9] Another development is the paper-thin flexible self-rechargeable battery that combines a thin-film organic solar cell with an extremely thin and highly flexible lithium-polymer battery. This recharges itself when exposed ...

  5. AOL reviewed: The Wonder Oven is my go-to kitchen appliance ...

    www.aol.com/lifestyle/our-place-wonder-oven...

    One of the reasons why air fryers have exploded in popularity within the past decade is because they get meals on the table fast. Compared to the time spent waiting for a full-sized oven to ...

  6. Fact-checking 'Gladiator II': Were there really sharks in the ...

    www.aol.com/fact-checking-gladiator-ii-were...

    Here's how "Gladiator 2" massages history in the name of cinematic drama: A break in the blood and gore: Pedro Pascal (left) jokes with "Gladiator II" director Ridley Scott and co-star Paul Mescal ...

  7. The $89 AirPods aren't worth it — get these instead - AOL

    www.aol.com/lifestyle/airpods-pro-2-black-friday...

    The AirPods are on sale right now, but they're not worth it. Go for the AirPods Pro 2, the upgraded version of these headphones that pack way more power into the price point.

  8. Lithium ion manganese oxide battery - Wikipedia

    en.wikipedia.org/wiki/Lithium_ion_manganese...

    One of the main research efforts in the field of lithium-manganese oxide electrodes for lithium-ion batteries involves developing composite electrodes using structurally integrated layered Li 2 MnO 3, layered LiMnO 2, and spinel LiMn 2 O 4, with a chemical formula of x Li 2 MnO 3 • y Li 1+a Mn 2-a O 4 • z LiMnO 2, where x+y+z=1. The ...

  9. Silver oxide battery - Wikipedia

    en.wikipedia.org/wiki/Silver_oxide_battery

    Until 2004, all silver oxide batteries contained up to 0.2% mercury, incorporated into the zinc anode to inhibit corrosion from the alkaline environment. [12] This corrosion would occur regardless of whether or not the battery was providing power, making shelf life an important consideration with silver oxide batteries.