Someday, left-over toner in discarded printer cartridges could have a second life as bridge or building components instead of as trash, wasting away in landfills and potentially harming the environment.

LED light bulbs are getting cheaper and more energy efficient every year. So, does it make sense to replace less-efficient bulbs with the latest light-emitting diodes now, or should you wait for future improvements and even lower costs?

LED light bulbs are getting cheaper and more energy efficient every year. So, does it make sense to replace less-efficient bulbs with the latest light-emitting diodes now, or should you wait for future improvements and even lower costs?

In cities and large-scale manufacturing plants, a water leak in a complicated network of pipes can take tremendous time and effort to detect, as technicians must disassemble many pieces to locate the problem. The American Water Works Association indicates that nearly a quarter-million water line breaks occur each year in the US, costing public water utilities about $2.8 billion annually.

In cities and large-scale manufacturing plants, a water leak in a complicated network of pipes can take tremendous time and effort to detect, as technicians must disassemble many pieces to locate the problem. The American Water Works Association indicates that nearly a quarter-million water line breaks occur each year in the US, costing public water utilities about $2.8 billion annually.

New Delhi: ‘Good content always attracts online viewers on any web property’, say experts at Webfair Meet-up here on Sunday. It was organized by the Sastahost at 91Springboard, in Okhla Phase II.

  New Delhi: ‘Good content always attracts online viewers on any web property’, says experts at Webfair Meet-up here on Sunday. It was organised by the Sastahost at 91Springboard, in Okhla Phase II.

New Delhi: Third chapter of 'Webfair Meetup' is being organised here at '91Springboard' near Okhla Phase II in Okhla Industrial Area, on Sunday, November 19.

New Delhi: Third chapter of 'Webfair Meetup' is being organised here at '91Springboard' near Okhla Phase II in Okhla Industrial Area, on Sunday, November 19.

A new type of smart fabric developed at the University of Washington could pave the way for jackets that store invisible passcodes and open the door to your apartment or office.