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  2. Kármán line - Wikipedia

    en.wikipedia.org/wiki/Kármán_line

    Three veteran NASA X-15 pilots (John B. McKay, William H. Dana and Joseph Albert Walker) were retroactively (two posthumously) awarded their astronaut wings, as they had flown between 90 km (56 miles) and 108 km (67 miles) during the 1960s, but at the time had not been recognized as astronauts. [11]

  3. Naismith's rule - Wikipedia

    en.wikipedia.org/wiki/Naismith's_rule

    Pace [6] in minutes per kilometre or mile vs. slope angle resulting from Naismith's rule [7] for basal speeds of 5 and 4 km / h. [n 1] The original Naismith's rule from 1892 says that one should allow one hour per three miles on the map and an additional hour per 2000 feet of ascent. [1] [4] It is included in the last sentence of his report ...

  4. Geographical distance - Wikipedia

    en.wikipedia.org/wiki/Geographical_distance

    = 6,371.009 kilometers = 3,958.761 statute miles = 3,440.069 nautical miles. = Distance between the two points, as measured along the surface of the Earth and in the same units as the value used for radius unless specified otherwise.

  5. Units of measurement in transportation - Wikipedia

    en.wikipedia.org/wiki/Units_of_measurement_in...

    kilometre (km) or kilometer is a metric unit used, outside the US, to measure the length of a journey; the international statute mile (mi) is used in the US; 1 mi = 1.609344 km; nautical mile is rarely used to derive units of transportation quantity.

  6. Speed limit - Wikipedia

    en.wikipedia.org/wiki/Speed_limit

    Final report considered speed limit change induced a 3.5 km/h (2.2 mph) speed decrease and saved 349 lives during the two years which last 20 months [128] Spain (2019) Decrease speed from 100 to 90 km/h (62 to 56 mph) In Spain the year 2019 was the best year with the fewest people killed outside a built-up area.

  7. Trump considers privatizing US Postal Service, Washington ...

    www.aol.com/news/trump-considers-privatizing-u...

    The U.S. Postal Service, which has lost more than $100 billion since 2007, reported a net loss of $9.5 billion for its fiscal year ending Sept. 30, $3 billion more than last year, largely due to a ...

  8. Earth radius - Wikipedia

    en.wikipedia.org/wiki/Earth_radius

    Earth radius (denoted as R 🜨 or R E) is the distance from the center of Earth to a point on or near its surface. Approximating the figure of Earth by an Earth spheroid (an oblate ellipsoid), the radius ranges from a maximum (equatorial radius, denoted a) of nearly 6,378 km (3,963 mi) to a minimum (polar radius, denoted b) of nearly 6,357 km (3,950 mi).

  9. Trump to hold 'victory rally' in Washington on eve of ...

    www.aol.com/trump-hold-victory-rally-washington...

    A joint session of Congress will meet Jan. 6 to count the electoral votes certifying Trump's victory four years after a mob of Trump supporters violently attacked the Capitol in protest of ...