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  2. Mass–energy equivalence - Wikipedia

    en.wikipedia.org/wiki/Mass–energy_equivalence

    If an isolated box of ideal mirrors could contain light, the individually massless photons would contribute to the total mass of the box by the amount equal to their energy divided by c 2. [7] For an observer in the rest frame, removing energy is the same as removing mass and the formula m = E / c 2 indicates how much mass is lost when energy ...

  3. Albany County, New York - Wikipedia

    en.wikipedia.org/wiki/Albany_County,_New_York

    The Manor of Rensselaerswyck was created as a district within the county in 1772, and later divided into two districts, one on each side of the Hudson River in 1779. The west district included all of what is now Albany County other than lands were in the city of Albany at the time. [ 9 ]

  4. United States congressional apportionment - Wikipedia

    en.wikipedia.org/wiki/United_States...

    Allocation of seats by state, as percentage of overall number of representatives in the House, 1789–2020 census. United States congressional apportionment is the process [1] by which seats in the United States House of Representatives are distributed among the 50 states according to the most recent decennial census mandated by the United States Constitution.

  5. Abacus - Wikipedia

    en.wikipedia.org/wiki/Abacus

    It adopts the form of the upper deck one bead and the bottom four beads. The top bead on the upper deck was equal to five and the bottom one is similar to the Chinese or Korean abacus, and the decimal number can be expressed, so the abacus is designed as a 1:4 device. The beads are always in the shape of a diamond.

  6. Color depth - Wikipedia

    en.wikipedia.org/wiki/Color_depth

    [28] [29] High Efficiency Video Coding (HEVC or H.265) defines the Main 10 profile, which allows for 8 or 10 bits per sample with 4:2:0 chroma subsampling . [ 2 ] [ 4 ] [ 5 ] [ 30 ] [ 31 ] The Main 10 profile was added at the October 2012 HEVC meeting based on proposal JCTVC-K0109 which proposed that a 10-bit profile be added to HEVC for ...

  7. List of U.S. states and territories by income inequality

    en.wikipedia.org/wiki/List_of_U.S._states_and...

    In the framework of American federalism, states generally have wide latitude to enact policies within their borders, including state taxation and labor laws.Among the factors that may increase inequality in a state are regressive state tax policies [2] (taxation has played a growing role in diminishing inequality since the 1980s), [3] tax incentives for large companies, [4] corruption, [5 ...

  8. Milky Way - Wikipedia

    en.wikipedia.org/wiki/Milky_Way

    The Milky Way is approximately 890 billion to 1.54 trillion times the mass of the Sun in total (8.9 × 10 11 to 1.54 × 10 12 solar masses), [7] [8] [9] although stars and planets make up only a small part of this. Estimates of the mass of the Milky Way vary, depending upon the method and data used.

  9. League of Nations - Wikipedia

    en.wikipedia.org/wiki/League_of_Nations

    Fourteen mandate territories were divided up among seven mandatory powers: the United Kingdom, the Union of South Africa, France, Belgium, New Zealand, Australia and Japan. [128] With the exception of the Kingdom of Iraq , which joined the League on 3 October 1932, [ 129 ] most of these territories did not begin to gain their independence until ...