2. Vawter climbed 103 floors of a Chicago skyscraper on his bionic leg, but its designers are still working on improving it. To optimize it for everyday use, they have to make it even thinner and lighter. Its successor (the iLeg Air?) may meet the Army's stated goal for a bionic leg—10,000 steps without recharging.
3. With very best wishes for your happiness in the New Year.
5. Overall, 36 percent point to end times and 63 percent to climate change.
6. China saw its population grow last year, along with an improved male-female ratio and the level of education, according to a survey from the National Bureau of Statistics that was released on last Wednesday.