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  2. Mass–energy equivalence - Wikipedia

    en.wikipedia.org/wiki/Mass–energy_equivalence

    If its temperature is allowed to change by 1 °C, its mass changes by 1.5 picograms (1 pg = 1 × 10 −12 g). [note 5] A spinning ball has greater mass than when it is not spinning. Its increase of mass is exactly the equivalent of the mass of energy of rotation, which is itself the sum of the kinetic energies of all the moving parts of the ball.

  3. Selenium - Wikipedia

    en.wikipedia.org/wiki/Selenium

    The chronic toxic dose of selenite for humans is about 2400 to 3000 micrograms of selenium per day. [140] Hydrogen selenide is an extremely toxic, corrosive gas. [ 141 ] Selenium also occurs in organic compounds, such as dimethyl selenide, selenomethionine , selenocysteine and methylselenocysteine , all of which have high bioavailability and ...

  4. Planck units - Wikipedia

    en.wikipedia.org/wiki/Planck_units

    Hence, the uncertainties in the SI values of the Planck units derive almost entirely from uncertainty in the SI value of G. Compared to Stoney units , Planck base units are all larger by a factor 1 / α ≈ 11.7 {\textstyle {\sqrt {{1}/{\alpha }}}\approx 11.7} , where α {\displaystyle \alpha } is the fine-structure constant .

  5. Barranquilla - Wikipedia

    en.wikipedia.org/wiki/Barranquilla

    Barranquilla (Latin American Spanish pronunciation: [baraŋˈkiʝa] ⓘ) is the capital district of the Atlántico department in Colombia.It is located near the Caribbean Sea and is the largest city and third port [5] in the Caribbean coast region; as of 2018, it had a population of 1,206,319 [6] [2] making it Colombia's fourth-most populous city after Bogotá, Medellín, and Cali.

  6. Nuclear power - Wikipedia

    en.wikipedia.org/wiki/Nuclear_power

    [254] [255] A 2014 analysis of the carbon footprint literature by the Intergovernmental Panel on Climate Change (IPCC) reported that the embodied total life-cycle emission intensity of nuclear power has a median value of 12 g CO 2 eq/kWh, which is the lowest among all commercial baseload energy sources.

  7. U.S. economic performance by presidential party - Wikipedia

    en.wikipedia.org/wiki/U.S._economic_performance...

    The p-value is the probability that the observed difference would occur if it were due to chance. [1] P-values typically considered statistically significant are those equal to or less than 0.1, 0.05, or 0.01, with each representing a different level of significance and lower values being more significant.

  8. Ethnic groups in the Philippines - Wikipedia

    en.wikipedia.org/wiki/Ethnic_groups_in_the...

    Traditional homelands of the Indigenous peoples of the Philippines Overview of the spread & overlap of languages spoken throughout the country as of March 2017. There are several opposing theories regarding the origins of ancient Filipinos, starting with the "Waves of Migration" hypothesis of H. Otley Beyer in 1948, which claimed that Filipinos were "Indonesians" and "Malays" who migrated to ...