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  2. 630 AM - Wikipedia

    en.wikipedia.org/wiki/630_AM

    The following radio stations broadcast on AM frequency 630 kHz: 630 AM is a regional U.S. broadcast frequency. [1] 630 kHz is a Philippine clear-channel frequency used by NTC.

  3. Albedo - Wikipedia

    en.wikipedia.org/wiki/Albedo

    In the event that most of the echo is from first surface reflections (^ < or so), the OC radar albedo is a first-order approximation of the Fresnel reflection coefficient (aka reflectivity) [83] and can be used to estimate the bulk density of a planetary surface to a depth of a meter or so (a few wavelengths of the radar wavelength which is ...

  4. Metrication - Wikipedia

    en.wikipedia.org/wiki/Metrication

    Philippines Philippine (Spanish, US customary and local) Mainly Metric. The Philippines first adopted the metric system in 1860 because of the Spanish Colonial government; imperial units were introduced by the American Colonial government; however, the metric system was made the official system of measurement in 1906 through Act No. 1519, s. 1906.

  5. Natural logarithm of 2 - Wikipedia

    en.wikipedia.org/wiki/Natural_logarithm_of_2

    In a third layer, the logarithms of rational numbers r = ⁠ a / b ⁠ are computed with ln(r) = ln(a) − ln(b), and logarithms of roots via ln n √ c = ⁠ 1 / n ⁠ ln(c).. The logarithm of 2 is useful in the sense that the powers of 2 are rather densely distributed; finding powers 2 i close to powers b j of other numbers b is comparatively easy, and series representations of ln(b) are ...

  6. Octal - Wikipedia

    en.wikipedia.org/wiki/Octal

    To convert integer decimals to octal, divide the original number by the largest possible power of 8 and divide the remainders by successively smaller powers of 8 until the power is 1. The octal representation is formed by the quotients, written in the order generated by the algorithm. For example, to convert 125 10 to octal: 125 = 8 2 × 1 + 61

  7. Hexadecimal - Wikipedia

    en.wikipedia.org/wiki/Hexadecimal

    Hexadecimal (also known as base-16 or simply hex) is a positional numeral system that represents numbers using a radix (base) of sixteen. Unlike the decimal system representing numbers using ten symbols, hexadecimal uses sixteen distinct symbols, most often the symbols "0"–"9" to represent values 0 to 9 and "A"–"F" to represent values from ten to fifteen.

  8. Kalinga (province) - Wikipedia

    en.wikipedia.org/wiki/Kalinga_(province)

    Poverty incidence of Kalinga 10 20 30 40 50 2006 47.30 2009 30.15 2012 26.77 2015 40.68 2018 12.10 2021 5.60 Source: Philippine Statistics Authority Culture 106-year old Apo Whang Od, the embodiment of Kalinga tattoo artistry. A student from Tinglayan, vested in traditional garb and holding a handcrafted weapon. There are many sub- tribes in the province. The strong sense of tribal membership ...

  9. Manila - Wikipedia

    en.wikipedia.org/wiki/Manila

    In 1948, President Elpidio Quirino moved the seat of government of the Philippines to Quezon City, a new capital in the suburbs and fields northeast of Manila, which was created in 1939 during the administration of President Manuel L. Quezon. [83] The move ended any implementation of the Burnham Plan's intent for the government center to be at ...