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  2. List of countries with highest military expenditures - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_with...

    The following lists are lists of countries by military spending as a share of GDP - more specifically, a list of the 15 countries with the highest share in recent years. The first list uses the Stockholm International Peace Research Institute as a source. The second list gets its data from the International Institute for Strategic Studies.

  3. Incandescent light bulb - Wikipedia

    en.wikipedia.org/wiki/Incandescent_light_bulb

    Historians Robert Friedel and Paul Israel list inventors of incandescent lamps prior to Joseph Swan and Thomas Edison of General Electric. [4]: 91–93 They conclude that Edison's version was the first practical implementation, able to outstrip the others because of a combination of four factors: an effective incandescent material; a vacuum higher than other implementations which was achieved ...

  4. List of films based on Marvel Comics publications - Wikipedia

    en.wikipedia.org/wiki/List_of_films_based_on...

    Marvel Comics films showcased at the 2011 D23 Expo. Marvel Comics is a publisher of American comic books and related media. It counts among its characters such well-known superheroes as Spider-Man, Wolverine, Iron Man, Captain America, Thor, Hulk, Black Panther, Doctor Strange, Ant-Man, Daredevil, and Deadpool, and such teams as the Avengers, the X-Men, the Fantastic Four, and the Guardians of ...

  5. COVID-19 pandemic death rates by country - Wikipedia

    en.wikipedia.org/wiki/COVID-19_pandemic_death...

    This data is for entire populations, and does not reflect the differences in rates relative to different age groups. For example, in the United States as of 27 April 2021, the reported case fatality ratios were 0.015%, 0.15%, 2.3%, and 17% for the age groups 0–17, 18–49, 50–74, and 75 or over, respectively.

  6. List of countries by population (United Nations) - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by...

    List of countries by population (United Nations) This is a list of countries and other inhabited territories of the world by total population, based on estimates published by the United Nations in the 2024 revision of World Population Prospects. It presents population estimates from 1950 to the present. [ 2]

  7. World economy - Wikipedia

    en.wikipedia.org/wiki/World_economy

    The world economy or global economy is the economy of all humans in the world, referring to the global economic system, which includes all economic activities conducted both within and between nations, including production, consumption, economic management, work in general, financial transactions and trade of goods and services. [ 1][ 2] In ...

  8. Mains electricity by country - Wikipedia

    en.wikipedia.org/wiki/Mains_electricity_by_country

    50 Hz. (1) Nominal grid voltage according to regulation is 230/400 V, [ 44] but in practice, equipment with 220/380 V is more commonly used. (2) Types C and F plugs are officially recognized by SNI 04-3892.1.1-2003. (3) British Type G sockets are common in Riau Islands due to their close proximity to Singapore.

  9. Table of nuclides - Wikipedia

    en.wikipedia.org/wiki/Table_of_nuclides

    A table or chart of nuclides is a two-dimensional graph of isotopes of the elements, in which one axis represents the number of neutrons (symbol N) and the other represents the number of protons (atomic number, symbol Z) in the atomic nucleus. Each point plotted on the graph thus represents a nuclide of a known or hypothetical chemical element.