[Video Link] Important questions in physics, explored by vsauce. This one will come in handy for those of you headed to Mars for target practice. The ballistics specifics start around 4:00 in.
Boing Boing editor/partner and tech culture journalist Xeni Jardin hosts and produces Boing Boing's in-flight TV channel on Virgin America airlines (#10 on the dial), and writes about living with breast cancer. Diagnosed in 2011. @xeni on Twitter. email: firstname.lastname@example.org.