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  2. Glycerol - Wikipedia

    en.wikipedia.org/wiki/Glycerol

    Glycerol (/ ˈ ɡ l ɪ s ə r ɒ l /), [6] also called glycerine or glycerin, is a simple triol compound. It is a colorless, odorless, viscous liquid that is sweet-tasting and non-toxic. . The glycerol backbone is found in lipids known as glycerid

  3. Electric charge - Wikipedia

    en.wikipedia.org/wiki/Electric_charge

    Charge is quantized: it comes in integer multiples of individual small units called the elementary charge, e, about 1.602 × 10 −19 C, ‍ [1] which is the smallest charge that can exist freely. Particles called quarks have smaller charges, multiples of ⁠ 1 / 3 ⁠ e , but they are found only combined in particles that have a charge that is ...

  4. Active noise control - Wikipedia

    en.wikipedia.org/wiki/Active_noise_control

    The term "1-dimension" refers to a simple pistonic relationship between the noise and the active speaker (mechanical noise reduction) or between the active speaker and the listener (headphones). Protection of a 3-dimension zone requires many microphones and speakers, making it more expensive.

  5. Stereophonic sound - Wikipedia

    en.wikipedia.org/wiki/Stereophonic_sound

    Two microphones set up to record a piano simultaneously, which creates a stereo sound. Stereo sound systems can be divided into two forms: the first is true or natural stereo in which a live sound is captured, with any natural reverberation present, by an array of microphones.

  6. Rechargeable battery - Wikipedia

    en.wikipedia.org/wiki/Rechargeable_battery

    Rapid chargers can typically charge cells in two to five hours, depending on the model, with the fastest taking as little as fifteen minutes. Fast chargers must have multiple ways of detecting when a cell reaches full charge (change in terminal voltage, temperature, etc.) to stop charging before harmful overcharging or overheating occurs.

  7. Topological quantum number - Wikipedia

    en.wikipedia.org/wiki/Topological_quantum_number

    In particle physics, an example is given by the Skyrmion, for which the baryon number is a topological quantum number. The origin comes from the fact that the isospin is modelled by SU(2), which is isomorphic to the 3-sphere and inherits the group structure of SU(2) through its bijective association, so the isomorphism is in the category of topological groups.

  8. JD Vance - Wikipedia

    en.wikipedia.org/wiki/JD_Vance

    On May 3, 2022, he won the Republican primary with 32% of the vote, [80] defeating multiple candidates, including Josh Mandel (23%) and Matt Dolan (22%). [81] On November 8, in the general election, Vance defeated Democratic nominee Tim Ryan with 53% of the vote to Ryan's 47%.

  9. Junior Reserve Officers' Training Corps - Wikipedia

    en.wikipedia.org/wiki/Junior_Reserve_Officers...

    NJROTC cadets visiting USS Theodore Roosevelt in November 2005. According to Title 10, Section 2031 [1] of the United States Code, the purpose of the Junior Reserve Officers' Training Corps is "to instill in students in [the United States] secondary educational institutions the values of citizenship, service to the United States, and personal responsibility and a sense of accomplishment."