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  2. Heights of presidents and presidential candidates of the ...

    en.wikipedia.org/wiki/Heights_of_presidents_and...

    Kamala Harris, the Democratic nominee for the 2024 election, will either become the second shortest president or second shortest unsuccessful candidate at a height of 5 ft 4 + 1 ⁄ 2 in (164 cm). [3] The largest height difference between two presidential candidates (out of the candidates whose heights are known) was in the 1860 election, when ...

  3. Calipers - Wikipedia

    en.wikipedia.org/wiki/Calipers

    The calipers in the diagram show a primary reading on the metric scale of about 2.475 cm (2.4 cm read from the main scale plus about 0.075 cm from the vernier scale). Calipers often have a "zero point error": meaning that the calipers do not read 0.000 cm when the jaws are closed.

  4. South African units of measurement - Wikipedia

    en.wikipedia.org/wiki/South_African_units_of...

    A term for a measure of alcohol that was enough to fill a large wine bottle. South Africa eventually adopted the standard French 750-ml bottle. 1 anker = 24.25 (≈24) kannen, 1⁄4 ahm = 1⁄16 legger [9.5 Dutch gallons, 32.25 L iters, 7.9143 (≈8) Imp. gals.] A Dutch term for a small wine or brandy cask.

  5. Equations for a falling body - Wikipedia

    en.wikipedia.org/wiki/Equations_for_a_falling_body

    The first equation shows that, after one second, an object will have fallen a distance of 1/2 × 9.8 × 1 2 = 4.9 m. After two seconds it will have fallen 1/2 × 9.8 × 2 2 = 19.6 m; and so on. On the other hand, the penultimate equation becomes grossly inaccurate at great distances. If an object fell 10 000 m to Earth, then the results of both ...

  6. LogMAR chart - Wikipedia

    en.wikipedia.org/wiki/LogMAR_chart

    The chart was designed by Ian Bailey [5] and Jan E. Lovie-Kitchin at the National Vision Research Institute of Australia. [1] [3] They described their motivation for designing the LogMAR chart as follows: "We have designed a series of near vision charts in which the typeface, size progression, size range, number of words per row and spacings were chosen in an endeavour to achieve a ...

  7. Bouteloua gracilis - Wikipedia

    en.wikipedia.org/wiki/Bouteloua_gracilis

    The overall height of the plant is 6 to 12 in (15 to 30 cm) at maturity. ... (30 to 46 cm) outwards, and 3 to 6.5 ft (0.9 to 2.0 m) ... Seeds dispersed by wind only ...

  8. NACA airfoil - Wikipedia

    en.wikipedia.org/wiki/NACA_airfoil

    m is the maximum camber (100 m is the first of the four digits), p is the location of maximum camber (10 p is the second digit in the NACA xxxx description). For example, a NACA 2412 airfoil uses a 2% camber (first digit) 40% (second digit) along the chord of a 0012 symmetrical airfoil having a thickness 12% (digits 3 and 4) of the chord.

  9. 99942 Apophis - Wikipedia

    en.wikipedia.org/wiki/99942_Apophis

    At the same time, the asteroid's estimated diameter was lowered from 440 m to 390 m and its mass from 1.2×10 11 kg to 8.3×10 10 kg. 2004-12-26 Based on a total of 169 observations, the impact probability was still estimated as 1 in 45 (2.2%), the estimates for diameter and mass were lowered to 380 m and 7.5×10 10 kg, respectively.