26 Jul '12, 2pm

Shark Teeth Amaze Researchers with Built-In Toothpaste

Shark Teeth Amaze Researchers with Built-In Toothpaste

“This finding is surprising, because the mineral fluoroapatite is harder than the mineral hydroxyapatite, so if a tooth were to consist of the mineral alone, a shark tooth would be harder than a human tooth,” Epple said. “It seems as if the human tooth makes up for the less hard mineral by the special arrangement of the enamel crystals and the protein matrix, and ends up being as hard as a shark tooth.”

Full article: http://www.ecorazzi.com/2012/07/26/shark-teeth-amaze-rese...

Tweets

#semiconductor #news Researchers claim smallest semiconductor laser - EE Times

#semiconductor #news Researchers claim smallest...

eetimes.com 27 Jul '12, 7am

SAN FRANCISCO—Physicists at the University of Texas-Austin say they have developed the world's smallest semiconductor lase...