Man went to the moon with only Newton's equations?

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The discussion centers on the assertion that Newton's equations were sufficient for the Apollo missions to the Moon, with a focus on their role in trajectory calculations. Participants note that while Newton's laws of motion and gravitation were fundamental, other scientific principles, including Maxwell's equations and advancements in solid-state physics, were crucial for navigation, communication, and problem-solving during the missions. The conversation also highlights the development of 3D stellar navigation techniques used in spacecraft, raising questions about the methods employed to determine position in space. It is acknowledged that relativistic effects were minimal for the mission's requirements, allowing reliance on Newtonian physics. Overall, the dialogue emphasizes the interplay of various scientific disciplines in achieving lunar exploration.
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Man went to the moon with only Newton's equations?

I am keenly interested in seeing these equations. Anyone recommend a book or resource that details this?
 
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Man would never have made it to the Moon without Maxwell's equations either not to mention solid state physics and the biological sciences! Telemetry, radio communication and computers were essential to navigation, guidance and problem solving when the unexpected arose.
 
I believe the original question has to do with the fact that in programming the course followed by the Apollos, Newton's gravity laws were sufficient and General Relativity was unneccesary. Any basic physics book would have Newton's theory of gravity as well as Newton's laws.
 
True. Relativistic corrections were small enough to be ignored given the speeds involved and accuracy required.
 
Well, Newton's equations of motion are:

\vec F = m \vec a

And his equation of gravitation is

F = G \frac{m_1 m_2}{r^2}

These are the only two basic equations you need to solve for the trajectory of a rocket-propelled spacecraft in the solar system, where gravitational field strengths and velocities are reasonably small.

- Warren
 
What was interesting is that they did come up with a means of 3-d stellar navigation while in the space craft. Anyone here know the details of how this worked? They were able to determine position and velocity.
 
What was interesting is that they did come up with a means of 3-d stellar navigation while in the space craft.

In their most general sense, Newton's Laws are vectorial in nature. Just use 3-d vectors.
 
I thinl that must be a secret!
The scientist may not be allowed to tell it to everyone. (I mean about the equipment and travellings).
If you have seen one, please tell it to me!
 
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What was interesting is that they did come up with a means of 3-d stellar navigation while in the space craft.

In their most general sense, Newton's Laws are vectorial in nature. Just use 3-d vectors.

That's the easy part, how did they get a reading to determine their current position while in the spacecraft ? (This was doiable without tracking information from the Earth). What type of "sextant" do you use for outer space?
 
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relativitydude said:
Man went to the moon with only Newton's equations?

I am keenly interested in seeing these equations. Anyone recommend a book or resource that details this?

Well, of course to steer the shuttle also lots of electronics was needed, which were designed using many electronics "laws", such as Kirchhoff's law etc.
 

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