Author Topic: innovation  (Read 972 times)

Offline rufus paul

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« on: 04/18/2017 12:32 PM »
There is a stable GRAVITY between the Sun and Earth . What if we can use this stable gravity to help the astronauts to move in outer space , as the gravity from the Sun is not weak to push the Earth away nor too strong to pull the Earth towards it but there is a stability created due to the motion of the Earth . The Earth is actually moving sideways compared to the center of the Sun at 3 km/second (~2 miles/second). The Earth is not moving fast enough to "escape" the Sun's gravity and leave the solar system, but it is going too fast to be pulled into the Sun. Therefore, it keeps going around and around - orbiting the Sun. It is rather like a tether ball. The top of the post as the Sun and the ball as the Earth. The string between them is like the force of gravity keeping them the same distance apart.
                                              What if we can create an innovative teach that makes us (The astronauts) to act as the ball creating the string ( The force of gravity ) between the Sun and us, enabling us to create an orbit that we prefer to take by means of which we will be able to travel in outer space

Offline meberbs

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Re: innovation
« Reply #1 on: 04/18/2017 09:25 PM »
First of all, the Earth's orbital velocity around the sun is approximately 30 km/s not 3km/s.

Your suggestion does not make any sense, since gravity is created by the mass of a planet, not by waving a magic wand.

"Rocket Scientists" have already figured out many ways to make use of gravity from various solar system bodies for designing interplanetary trajectories, or just changing orbits. Since it seems you are unfamiliar with these, playing Kerbal Space Program could be a good start, since while it ignores perturbations including third body gravity (meaning no Lagrange points) it still can let you experience the Oberth effect, and gravitational assists.

If you really want to get serious about studying this, you can skip the game and take a class or pick up a textbook on orbital mechanics. There is also plenty of good information on the Q&A section of this site as a starting point, for example this thread: