from the some-science-projects-are-better-than-others dept.
First time accepted submitter AbilityLiving writes "Two high schoolers have launched a Lego Man to 80,000 feet — three times the height of a jet — in a homebrew project that involved a few Ebay-purchased cameras, a giant helium balloon and a star-ship full of ingenuity."
egrep patterns are full regular expressions; it uses a fast deterministic
algorithm that sometimes needs exponential space.
-- unix manuals