Q. Describe the Gravitation book.
A. Gravitation: Master Key to the Universe (ISBN 0-9689120-0-1), written for an intelligent
layperson, describes a radical new theory of gravitation valid for any number of bodies.
Q. Describe the N-body book.
A. N-body Gravitational Problem: Unrestricted Solution (ISBN 978-0-9689120-5-8), which expects some knowledge of mathematics,
reveals how to analytically determine the trajectories of any number of bodies from their initial conditions. The book also includes a numerical solution based on the analytical one.
Q. Which libraries have these two books?
A. Just click on these links:
These libraries own the Gravitation book
These libraries own the N-body book
If your library does not have these books, you can ask your library to buy the books for you (from the distributor).
Alternatively you can ask your library to borrow the books for you from one of the libraries above (by inter-library loan).
Q. How are n-body simulations done on this web page?
A. All n-body
simulations are done by the same program (with different initial conditions). The program is written in Java 2 and runs under Easy Java Simulations
(EJS), developed by Francisco Esquembre. The theoretical background for the simulation program and its listing can be found in the
N-body book described above. The simulations are
interactive, which means that you can change the values of the masses, initial
positions, and initial velocities, and observe the amended trajectories.
Q. Can I download the simulation programs so I can run the simulations on my computer?
A. Yes. Just click:
Simulation programs are here
© 2009 Grevyt
Press