Tapping energy from the sun through heat and light

A new approach to harvesting solar energy, developed by Massachusetts Institute of Technology, Cambridge, researchers, could improve efficiency by using sunlight to heat a high-temperature material whose infrared radiation would then be collected by a conventional photovoltaic cell.

A way to authenticate premium chocolate

For some people, nothing can top a morsel of luxuriously rich, premium chocolate. But until now, other than depending on their taste buds, chocolate connoisseurs had no way of knowing whether they were getting what they paid for.

Extreme leak testing technology

The smallest leaks are unacceptable with natural gas vehicles (NGV) fuel systems, so traditional leak testing approach is helium mass spectrometry.