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I wrote a bare-bones applet that lets you try to get to Mars. Very crude, but it manages the momentum correctly and does illustrate that launch windows and transfer orbits are tricky. http://www.sal.wisc.edu/~jwp/astro/OrbitApplet.htm l
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I wrote a bare-bones applet that lets you try to get to Mars. Very crude, but it manages the momentum correctly and does illustrate that launch windows and transfer orbits are tricky. http://www.sal.wisc.edu/~jwp/astro/OrbitApplet.htm l