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2. Economy of the United States - Wikipedia

   en.wikipedia.org/wiki/Economy_of_the_United_States

   The rich natural resources contributed to the rapid economic expansion of the nineteenth century. Ample land allowed the number of farmers to keep growing; but activity in manufacturing, services, transportation, and other sectors grew much faster, so that by 1860 the population was only about 50 percent rural, down from over 80 percent. [96]

3. McDonnell Douglas F-15 Eagle - Wikipedia

   en.wikipedia.org/wiki/McDonnell_Douglas_F-15_Eagle

   The McDonnell Douglas F-15 Eagle is an American twin-engine, all-weather fighter aircraft designed by McDonnell Douglas (now part of Boeing).Following reviews of proposals, the United States Air Force (USAF) selected McDonnell Douglas's design in 1969 to meet the service's need for a dedicated air superiority fighter.

4. Earth's rotation - Wikipedia

   en.wikipedia.org/wiki/Earth's_rotation

   The angular speed of Earth's rotation in inertial space is (7.292 115 0 ± 0.000 000 1) × 10 ^ −5 radians per SI second. [ 35 ] [ n 4 ] Multiplying by (180°/π radians) × (86,400 seconds/day) yields 360.985 6 °/day , indicating that Earth rotates more than 360 degrees relative to the fixed stars in one solar day.

5. Speed of light - Wikipedia

   en.wikipedia.org/wiki/Speed_of_Light

   For example, for visible light, the refractive index of glass is typically around 1.5, meaning that light in glass travels at ⁠ c / 1.5 ⁠ ≈ 200 000 km/s (124 000 mi/s); the refractive index of air for visible light is about 1.0003, so the speed of light in air is about 90 km/s (56 mi/s) slower than c.

6. Tyrannosaurus - Wikipedia

   en.wikipedia.org/wiki/Tyrannosaurus

   Tyrannosaurus (/ t ɪ ˌ r æ n ə ˈ s ɔː r ə s, t aɪ-/) [a] is a genus of large theropod dinosaur.The type species Tyrannosaurus rex (rex meaning 'king' in Latin), often shortened to T. rex or colloquially T-Rex, is one of the best represented theropods.

7. ZeroZeroZero - Wikipedia

   en.wikipedia.org/wiki/ZeroZeroZero

   The series derives its name from the whitest, finest-milled type of wheat flour (000), which is "the nickname among narcotraffickers for the purest cocaine on the market." [4] The world premiere of ZeroZeroZero was on 5 September 2019 at the 76th Venice International Film Festival, where the first two episodes were screened out of competition. [5]