Archive: 11/09/2009

Look ma, no mercury in fillings!

Tooth enamel is hardest material in the human body because it's made almost entirely of minerals. As tough as it may be, however, enamel can be broken down by bacteria, forming cavities and eventually destroying the tooth. ...

Nov 09, 2009 5 / 5 (1) 0

Drought resistance explained

Much as adrenaline coursing through our veins drives our body's reactions to stress, the plant hormone abscisic acid (ABA) is behind plants' responses to stressful situations such as drought, but how it does ...

Nov 09, 2009 5 / 5 (1) 0