Editing 2011: Newton's Trajectories
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− | The comic shows the Earth, with three apparent rockets on separate trajectories. One is released with sufficient velocity to | + | The comic shows the Earth, with three apparent rockets on separate trajectories. One is released with sufficient velocity to remain in a stable orbit, while the other two fall towards the Earth. This is a slight modification of {{w|Newton's cannonball}}, a thought experiment demonstrating the planetary effects of gravity. |
The black rocket trajectory is typically that of a rocket delivering a payload to low earth orbit. While a satellite in orbit is still bound to earth, it represents an important step in the history of space exploration. Today, a lot of scientific research regarding the future of human spaceflight is done from low earth orbit, most notably on the {{w|International Space Station|ISS}}. | The black rocket trajectory is typically that of a rocket delivering a payload to low earth orbit. While a satellite in orbit is still bound to earth, it represents an important step in the history of space exploration. Today, a lot of scientific research regarding the future of human spaceflight is done from low earth orbit, most notably on the {{w|International Space Station|ISS}}. |