We live in a battery world - just visit any airport and see people huddled around a wall outlet to witness our battery culture. Yet batteries haven't made any real improvements in decades and that holds back electric cars and solar energy and laptop computers.

An old technology may finally have come of age that can help us enter the world of 21st century portable electricity - betavoltaics, a battery technology that generates power from radiation, has bee created using a water-based solution, and it might be the longer-lasting and more efficient nuclear battery we need.

Fires, mudslides and earthquakes are part of California life but residents might be wishing for a few more mudslides right about now. The temperature is nothing special but the worst drought in 20 years and dry lightning have meant an abundance of forest fires.

Wearable electronic activity monitors are a popular fad. They constantly monitor activities and bodily responses and the information is organized into computer programs and mobile apps. 

Given the large and quickly growing market for these devices, researchers at the University of Texas Medical Branch at Galveston analyzed 13 of these activity monitors - names like Fitbit, Jawbone or Nike - to try and see if the devices and their companion apps work to motivate the wearer or if they are only used after the novelty phase who were interested in fitness anyway. 

66 million years ago, a 10 km diameter meteorite hit the Yucatan peninsula with the force of 100 teratons of TNT. It left a crater more than 150 km across and the resulting mega tsunami, wildfires, global earthquakes and volcanism are believed to have wiped out the dinosaurs and made way for the rise of the mammals.

We inherit certain traits that are predetermined but the field of epigenetics postulates that we might be able to change genes play by taking certain drugs or changing diets.  

Not all objects are equal in our minds. A Picasso sculpture is not the same way as a hammer, no matter how fancy the hammer. 

The reason? We see the Picasso more as a person than an object, according to a new paper from the University of Chicago Booth School of Business. And in some cases, we make distinctions between artworks — say, an exact replica of a piece created by the artist, versus one created by a different artist.

Art, in other words, is an extension of the creator, write Professor Daniel M. Bartels of Chicago Booth, and Professor George E. Newman and Rosanna K. Smith, a doctoral student, both of Yale University School of Management.