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  2. Repeating decimal - Wikipedia

    en.wikipedia.org/wiki/Repeating_decimal

    For example, in duodecimal, ⁠ 1 / 2 ⁠ = 0.6, ⁠ 1 / 3 ⁠ = 0.4, ⁠ 1 / 4 ⁠ = 0.3 and ⁠ 1 / 6 ⁠ = 0.2 all terminate; ⁠ 1 / 5 ⁠ = 0. 2497 repeats with period length 4, in contrast with the equivalent decimal expansion of 0.2; ⁠ 1 / 7 ⁠ = 0. 186A35 has period 6 in duodecimal, just as it does in decimal. If b is an integer base ...

  3. Albedo - Wikipedia

    en.wikipedia.org/wiki/Albedo

    When seen from a distance, the ocean surface has a low albedo, as do most forests, whereas desert areas have some of the highest albedos among landforms. Most land areas are in an albedo range of 0.1 to 0.4. [14] The average albedo of Earth is about 0.3. [15] This is far higher than for the ocean primarily because of the contribution of clouds.

  4. Neutron star - Wikipedia

    en.wikipedia.org/wiki/Neutron_star

    Neutron stars have overall densities of 3.7 × 10 17 to 5.9 × 10 17 kg/m 3 (2.6 × 10 14 to 4.1 × 10 14 times the density of the Sun), [a] which is comparable to the approximate density of an atomic nucleus of 3 × 10 17 kg/m 3. [24] The density increases with depth, varying from about 1 × 10 9 kg/m 3 at the crust to an estimated 6 × 10 17 ...

  5. Ventilation (architecture) - Wikipedia

    en.wikipedia.org/wiki/Ventilation_(architecture)

    [29] In a DCV system, CO 2 sensors control the amount of ventilation. [30] [31] During peak occupancy, CO 2 levels rise, and the system adjusts to deliver the same amount of outdoor air as would be used by the ventilation-rate procedure. [32] However, when spaces are less occupied, CO 2 levels reduce, and the system reduces ventilation to ...

  6. CoRoT - Wikipedia

    en.wikipedia.org/wiki/COROT

    2 m × 4 m (6.6 ft × 13.1 ft) ... 14.44 rev/day [2] Epoch: 8 March 2016, 11:58:39 ... Scientists can thus hope finding planets with a size of approximately 2 times ...

  7. Binary star - Wikipedia

    en.wikipedia.org/wiki/Binary_star

    Probably the best known example of an X-ray binary is the high-mass X-ray binary Cygnus X-1. In Cygnus X-1, the mass of the unseen companion is estimated to be about nine times that of the Sun, [32] far exceeding the Tolman–Oppenheimer–Volkoff limit for the maximum theoretical mass of a neutron star. It is therefore believed to be a black ...

  8. List of close election results - Wikipedia

    en.wikipedia.org/wiki/List_of_close_election_results

    This is a list of close election results on the national level and within administrative divisions.It lists results that have been decided by a margin of less than 1 vote in 1,000 (a margin of less than 0.1 percentage points): single-winner elections where the winning candidate was less than 0.1% ahead of the second-placed candidate, as well as party-list elections where a party was less than ...