"A list of unsolved problems may refer to several conjectures or open problems in various fields"

"The Particle System API allows C++ application developers to easily include dynamic simulations of groups of moving objects. The API is much lighter weight than a full physics engine. It is especially useful for eye candy in games and screen savers, but is also used in off-line animation software."

"Open access to 517,807 e-prints in Physics, Mathematics, Computer Science, Quantitative Biology, Quantitative Finance and Statistics"

C++ physics engine, recently ported to the iPhone

"The purpose of this analysis is to determine the evolution of gravity in the Mario video game series as video game hardware increases."

Feynman tells it like it is.