A fter more than fifty years of uninterrupted fertility in invention, during which he has not only begotten but continuously fathered the electrical era, Thomas Alva Edison believes that we have only ...

Add Yahoo as a preferred source to see more of our stories on Google. No real-life time machine to transport you back to 1955? No problem. But there is one nifty invention from the Back to the Future ...

The power of technology -- Risk and responsibility -- The ethical anatomy of disasters -- Remaking nature -- Tinkering with humans -- Information's wild frontiers -- Whose knowledge, whose property? - ...