Those hold the detectors, an MQ-2 gas sensor module, and a thermal conductivity sensor fashioned from the filament of a grain-of-wheat incandescent lamp.

Oregon State University researchers have developed a hybrid optical and nanotechnology sensor that's at once super-sensitive to gas, but won't weigh a ton or cost a fortune.

Expert sommeliers can take a whiff of a glass of wine and tell you a lot about what’s in your pinot noir or cabernet sauvignon. A team of physicists at CU Boulder and the National Institute of ...