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  2. Electrophorus - Wikipedia

    en.wikipedia.org/wiki/Electrophorus

    Charge conservation while using an electrophorus.. Charge in the universe is conserved. The electrophorus simply separates positive and negative charges. A positive or negative charge ends up on the metal plate (or other storage conductor), and the opposite charge is stored in another object after grounding (in the earth or the person touching the metal plate).

  3. Van de Graaff generator - Wikipedia

    en.wikipedia.org/wiki/Van_de_Graaff_generator

    The concept of an electrostatic generator in which charge is mechanically transported in small amounts into the interior of a high-voltage electrode originated with the Kelvin water dropper, invented in 1867 by William Thomson (Lord Kelvin), [3] in which charged drops of water fall into a bucket with the same polarity charge, adding to the charge. [4]

  4. Charge carrier density - Wikipedia

    en.wikipedia.org/wiki/Charge_carrier_density

    Charge carrier density, also known as carrier concentration, denotes the number of charge carriers per volume. In SI units, it is measured in m −3. As with any density, in principle it can depend on position. However, usually carrier concentration is given as a single number, and represents the average carrier density over the whole material.

  5. Aluminium-ion battery - Wikipedia

    en.wikipedia.org/wiki/Aluminium-ion_battery

    Thus, since the ionic radii of Al 3+ (0.54 Å) and Li + (0.76 Å) are similar, significantly higher numbers of electrons and Al 3+ ions can be accepted by cathodes with little damage. [1] [2] Al has 50 times (23.5 megawatt-hours m-3) the energy density of Li-ion batteries and is even higher than coal. [3]

  6. Generator (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Generator_(mathematics)

    The generator of any continuous symmetry implied by Noether's theorem, the generators of a Lie group being a special case. In this case, a generator is sometimes called a charge or Noether charge, examples include: angular momentum as the generator of rotations, [3] linear momentum as the generator of translations, [3]

  7. Explosively pumped flux compression generator - Wikipedia

    en.wikipedia.org/wiki/Explosively_pumped_flux...

    The first experiments were able to attain magnetic fields of millions of gauss (hundreds of teslas), given an initial field of 30 kG (3 T) which is in the free space "air" the same as H = B/μ 0 = (3 V s /m 2) / (4π × 10 −7 V s /Am) = 2.387 × 10 6 A/m (approximately 2.4 MA/m).

  8. Sheet explosive - Wikipedia

    en.wikipedia.org/wiki/Sheet_explosive

    Sheet explosives are materials formed by combining an explosive with a "rubberizer" — a flexible binding agent. The resulting compound is cast into a flat sheet which is typically pliable and deformable over a wide range of temperature. Typical products are generally shock-insensitive secondary explosives, requiring a blasting cap or other ...

  9. List of random number generators - Wikipedia

    en.wikipedia.org/wiki/List_of_random_number...

    A modification of Lagged-Fibonacci generators. A SWB generator is the basis for the RANLUX generator, [19] widely used e.g. for particle physics simulations. Maximally periodic reciprocals: 1992 R. A. J. Matthews [20] A method with roots in number theory, although never used in practical applications. KISS: 1993 G. Marsaglia [21]