LINKS

• Tutorials and more explanations

  • The physics hypertextbook - universal gravitation http://hypertextbook.com/physics/mechanics/gravitation/

  • HyperPhysics - Gravity

  • http://www.martindalecenter.com/Calculators3A.html

  • more gravity and inverse square law examples

  • http://hyperphysics.phy-astr.gsu.edu/hbase/forces/isq.html#isqg

• HISTORY

  • Galileo's Actual Manuscript Notes on Motion (do you know Latin? if you know Spanish you may understand some of this!)

  • Galileo's  Dialog Concerning Two New Sciences (translations)

  • Escape Velocity Calculator

  • escape velocity calculator

• Gravity Sims

  • Interactive 3D Solar System Sim (download file , right click and select 'install')

  • Gravitational Field

  • Astronomy Applets - Walter Fendt (download zip file)

  • Physics Simulations - Walter Fendt (download zip file)

  • Math Simulations - Walter Fendt (downlaod zip file)

(I haven't tried these yet, let me know if any of them are good!)

http://www.handyarchive.com/free/gravity/