hard hat

Public safety

I was recently in Sendai, Japan, known most recently as the epicenter of the 2011 Sendai earthquake and devastating tsunami that washed away or…

Stem Cells iPS in culture

Stem cells

Recently, a Japanese group made an artificial liver from stem cells. Sooner or later we will be able¬† to routinely personalize new body parts…

Bacterial DNA

Tooth Bacteria

We have 700 different species of bacteria swarming in our mouths, but only one species causes most of our tooth decay. Another dozen harm…