Electrons Dressed in Light

Optical manipulation of material properties could bring about new functions. For example, exciting electrons with strong light can lead to exotic quantum effects. The periodic perturbations from the strong light field cause electrons to…

Electronic Noses Should Smell Better

Electronic noses, or e-noses, are systems that combine chemical gas sensors, signal processing, and machine learning algorithms to mimic the sense of smell. E-noses can be used for checking food quality, monitoring air pollution, diagnosing…

A Sensor For Mind-Controlled Robots

Physicians monitor the brain's electrical signals via an EEG and specialized electrodes implanted into, or placed on, the surface of the head. Scientists can incorporate EEGs into “brain-machine interfaces,” that use brain waves to control…

Plants Emit Sounds

I’m inconsistent at times when watering my plants. Now, however, I think I’ll reform. Researchers in Israel report that stressed tomato and tobacco plants, whether from dehydration or having their stems severed, emit sounds comparable in…