from the throw-out-your-toothbrush dept.
54mc writes "APL reports that Canadian Scientists have created the first device able to regrow teeth and bones.
The researchers at the University of Alberta in Edmonton filed patents earlier this month in the United States for the tool based on low-intensity pulsed ultrasound technology after testing it on a dozen dental patients in Canada."
egrep patterns are full regular expressions; it uses a fast deterministic
algorithm that sometimes needs exponential space.
-- unix manuals