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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. The Wireless Headphones You Never Need to Charge - AOL

    www.aol.com/lifestyle/wireless-headphones-never...

    Futuristic solar charging paired with practical everyday features, Adidas—yes, Adidas—are making the coolest headphones on the market right now.

  4. Zinc–carbon battery - Wikipedia

    en.wikipedia.org/wiki/Zinc–carbon_battery

    Zinc–carbon batteries of various sizes. A zinc–carbon battery (or carbon zinc battery in U.S. English) is a dry cell primary battery that provides direct electric current from the electrochemical reaction between zinc (Zn) and manganese dioxide (MnO 2) in the presence of an ammonium chloride (NH 4 Cl) electrolyte.

  5. Triboelectric effect - Wikipedia

    en.wikipedia.org/wiki/Triboelectric_effect

    The triboelectric effect (also known as triboelectricity, triboelectric charging, triboelectrification, or tribocharging) describes electric charge transfer between two objects when they contact or slide against each other. It can occur with different materials, such as the sole of a shoe on a carpet, or between two pieces of the same material.

  6. History of radio - Wikipedia

    en.wikipedia.org/wiki/History_of_radio

    In the early days one had to use headphones to listen to radio. Later loudspeakers in the form of a horn of the type used by phonographs, equipped with a telephone receiver, became available. But the sound quality was poor. In 1926 the first radios with electrodynamic loudspeakers went for sale, which improved the quality a lot.

  7. Oxocarbon anion - Wikipedia

    en.wikipedia.org/wiki/Oxocarbon_anion

    Each blue halo represents one half of a negative charge. In chemistry, an oxocarbon anion is a negative ion consisting solely of carbon and oxygen atoms, and therefore having the general formula C. xOn−. y for some integers x, y, and n . The most common oxocarbon anions are carbonate, CO2− 3, and oxalate, C2O2− 4.

  8. 10 alleged Minneapolis gang members are charged in ongoing ...

    www.aol.com/news/10-alleged-minneapolis-gang...

    Ten alleged members of a Minneapolis gang accused of “terrorizing” a city neighborhood have been charged with a range of federal crimes including possession of a machine gun and drug ...

  9. Carbocation - Wikipedia

    en.wikipedia.org/wiki/Carbocation

    Definitions. According to the IUPAC, a carbocation is any cation containing an even number of electrons in which a significant portion of the positive charge resides on a carbon atom. [5] Prior to the observation of five-coordinate carbocations by Olah and coworkers, carbocation and carbonium ion were used interchangeably. Olah proposed a ...

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