StewieGriffin:

http://en.wikipedia.org/wiki/Inertia
Inertia is the resistance of any physical object to a change in its state of motion or rest. It is proportional to an object's mass. The principle of inertia is one of the fundamental principles of classical physics which are used to describe the motion of matter and how it is affected by applied forces. Inertia comes from the Latin word, iners, meaning idle, or lazy. Sir Isaac Newton defined inertia in Definition 3 of his Philosophiæ Naturalis Principia Mathematica, which states:[1]
The vis insita, or innate force of matter...

spyfus8:

One feature I feel TPT has been lacking for too long it the effect black holes and theoretic white holes would have on photons. When photons pass nearby black holes they should bend/warp and the speed of which the photons warp should increase/decrease when the distance to the black holes is decreased/increased and white holes should do the exact opposite. Just a thought. I don't know if it would be possible to implement but it would indeed be a great feature.

-Spyfus8