(a) A simplified schematic of the laser ultrasound system. (b) Photograph of a volunteers forearm during laser ultrasound imaging. A green tracking laser is visible to show where the measurement spot is located on the skin. (c) A laser ultrasound image of a volunteer's forearm. (d) A matching conventional ultrasound image of the same region that verifies features detected using laser ultrasound
Researchers at EPFL have patented a new concept that could cut trucks' CO2 emissions by almost 90%. It involves capturing CO2 within the exhaust system, converting it into a liquid and storing it on the vehicle. The liquid CO2 would then be delivered to a service station and where it will be turned back into fuel using renewable energy.