Flight

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Flight: how it works

  • principles:
    • gravity pulls or attracts mass (anything with weight) towards the center of the earth
      • i.e., towards the ground
    • air has weight
    • air molecules and elements are diffuse (spread out)
      • thus the atmosphere is not compacted by gravity
      • it is more dense closer to the ground than higher up
      • objects can push through air molecules and elements
        • similarly to objects going through water


Related concepts

  • vacuum and suction
  • gravity
    • terminal velocity
  • bullets and gravity
    • two bullets held at the same level, one by hand, the other in a gun
    • they both are released simultaneously
    • which hits the ground first?
      • gravity acts on both equally, so they fall at the same time
        • actually the dropped bullet, as the earth is round, so the curvature of the earth would make the distance of the bullet fired in a straight line farther than the bullet dropped to the ground