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  2. Energy density - Wikipedia

    en.wikipedia.org/wiki/Energy_density

    Energy density differs from energy conversion efficiency (net output per input) or embodied energy (the energy output costs to provide, as harvesting, refining, distributing, and dealing with pollution all use energy). Large scale, intensive energy use impacts and is impacted by climate, waste storage, and environmental consequences.

  3. List of countries by total health expenditure per capita

    en.wikipedia.org/wiki/List_of_countries_by_total...

    The chart below is older (2020 data) and breaks down the voluntary spending further by separating out-of-pocket payments. In this chart the items are stacked by color. There are a few other countries than just OECD countries. [2] [3] Click to enlarge. Timeline of a few OECD countries: Health care cost as percent of GDP (total economy of a ...

  4. Exposure value - Wikipedia

    en.wikipedia.org/wiki/Exposure_value

    Robert Kaufmann's posographe or exposure calculator from 1922 The ratio t / N 2 could be used to represent equivalent combinations of exposure time and f-number in a single value. But for many such combinations used in general photography, the ratio gives a fractional value with a large denominator; this is notationally inconvenient as well as ...

  5. Economics of nuclear power plants - Wikipedia

    en.wikipedia.org/wiki/Economics_of_nuclear_power...

    Financial firm Lazard also updated its levelized cost of electricity report costing new nuclear at between $0.118/kWh and $0.192/kWh using a commercial 7.7% cost of capital (WACC - pre-tax 12% cost for the higher-risk 40% equity finance and 8% cost for the 60% loan finance) over a 40-year lifetime.

  6. List of countries by life expectancy - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by_life...

    This list of countries by life expectancy provides a comprehensive list of countries alongside their respective life expectancy figures. The data is differentiated by sex, presenting life expectancies for males, females, and a combined average.

  7. Wikipedia:Size of Wikipedia - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:Size_of_Wikipedia

    The size of the English Wikipedia can be measured in terms of the number of articles, number of words, number of pages, and the size of the database, among other ways. As of 22 December 2024, there are 6,928,087 articles in the English Wikipedia containing over 4.7 billion words (giving a mean of about 688 words per article).

  8. Shoe size - Wikipedia

    en.wikipedia.org/wiki/Shoe_size

    The length of a person's foot is commonly defined as the distance between two parallel lines that are perpendicular to the foot and in contact with the most prominent toe and the most prominent part of the heel.

  9. Logarithm - Wikipedia

    en.wikipedia.org/wiki/Logarithm

    The logarithm keys (LOG for base 10 and LN for base e) on a TI-83 Plus graphing calculator Logarithms are easy to compute in some cases, such as log 10 (1000) = 3 . In general, logarithms can be calculated using power series or the arithmetic–geometric mean , or be retrieved from a precalculated logarithm table that provides a fixed precision.