Last year, researchers estimated that California had lost 238 trillion litres of water over the course of 18 months of drought. Now, a huge reservoir of underground water -- three times bigger than engineers thought -- has been found under California. But it still won't solve the state's drought troubles.
A research team from the Mayo Clinic has shown that text messaging changes the rhythm of brain wave patterns in a way that's never seen before. The discovery shows that smartphones are literally altering the way our minds work.