Racer is a free cross-platform car simulation project (for non-commercial use), using professional car physics to achieve a realistic feeling and an excellent render engine for graphical realism.

Another online drawing tool, by General Electrics. You can invite friends and draw together.

1. Frogner Park, Oslo, Norway (thanks Stenar, jac). Sculpture by Gustav Vigeland.
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Insultingly Stupid Movie Physics – Technonerds go to movies strictly for entertainment, and of course, the most entertaining part comes after the movie when they can dissect, criticize, and argue the merits of every detail. However, when supposedly serious scenes totally disregard the laws of physics in blatantly obvious ways it’s enough to make us retch. The motion picture industry has failed to police itself against the evils of bad physics.