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  2. Orders of magnitude (length) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(length)

    1.0 mm – 1/1,000 of a meter; 1.0 mm – 0.03937 inches or 5/127 (exactly) 1.0 mm – side of a square of area 1 mm²; 1.0 mm – diameter of a pinhead; 1.5 mm – average length of a flea [27] 2.54 mm – distance between pins on old dual in-line package (DIP) electronic components; 5 mm – length of an average red ant

  3. List of electronic component packaging types - Wikipedia

    en.wikipedia.org/wiki/List_of_electronic...

    The codes given in the chart below usually tell the length and width of the components in tenths of millimeters or hundredths of inches. For example, a metric 2520 component is 2.5 mm by 2.0 mm which corresponds roughly to 0.10 inches by 0.08 inches (hence, imperial size is 1008).

  4. Stefan–Boltzmann law - Wikipedia

    en.wikipedia.org/wiki/Stefan–Boltzmann_law

    The radiant exitance (previously called radiant emittance), , has dimensions of energy flux (energy per unit time per unit area), and the SI units of measure are joules per second per square metre (J⋅s −1 ⋅m −2), or equivalently, watts per square metre (W⋅m −2). [2] The SI unit for absolute temperature, T, is the kelvin (K).

  5. Hawaii - Wikipedia

    en.wikipedia.org/wiki/Hawaii

    Hawaii has a de facto population of over 1.4 million, due in part to a large number of military personnel and tourist residents. O'ahu is the most populous island; it has the highest population density with a resident population of just under one million in 597 square miles (1,546 km 2), approximately 1,650 people per square mile.

  6. External ballistics - Wikipedia

    en.wikipedia.org/wiki/External_ballistics

    Sporting bullets, with a calibre d ranging from 0.177 to 0.50 inches (4.50 to 12.7 mm), have G1 BC's in the range 0.12 to slightly over 1.00, with 1.00 being the most aerodynamic, and 0.12 being the least.

  7. Brooklyn - Wikipedia

    en.wikipedia.org/wiki/Brooklyn

    [5] [6] [7] Brooklyn, at 37,339.9 inhabitants per square mile (14,417.0/km 2), is the second most densely populated county in the U.S. after Manhattan (New York County), as of 2022. [8] Had Brooklyn remained an independent city, it would now be the fourth most populous American city after the rest of New York City, Los Angeles , and Chicago .

  8. Wikipedia:Reference desk/Archives/Science/September 2005 ...

    en.wikipedia.org/wiki/Wikipedia:Reference_desk/...

    Someone's been reading a bit too much Arthur C Clarke, personally i thought 3001 was a bit of a let down, but I guess you liked it well enough--152.163.101.12 21:25, 30 August 2005 (UTC) Not really. The Earth is pretty rough at that scale - you have mountains, seas, that sort of thing - which are very inhomogenous; it'd be like dealing with a ...