from the easy-to-refuel dept.
Spy der Mann writes "A unique system that can produce Hydrogen inside a car using common metals such as Magnesium and Aluminum was recently developed by an Israeli company. The system solves all of the obstacles associated with the manufacturing, transporting and storing of hydrogen to be used in cars. And it's completely emission free."
egrep patterns are full regular expressions; it uses a fast deterministic
algorithm that sometimes needs exponential space.
-- unix manuals