How do scientists figure out how old things are?

The ability to precisely date, or identify the age of an object, can teach us when Earth formed, help reveal past climates and tell us how early humans lived. So how do scientists do it? Radiocarbon dating is the most common method by far, according to experts. This method involves measuring quantities of carbon-14, a […]

Record-setting thermoelectric figure of merit achieved for metal oxides

IMAGE: The barium-cobalt oxide film (top right, approximately 1 cm2) being exposed to an open flame to generate voltage. (Photo: Hiromichi Ohta) view more  Credit: Hiromichi Ohta Scientists at Hokkaido University have developed a layered cobalt oxide with a record-setting thermoelectric figure of merit, which can be used to enhance thermoelectric power generation. Waste heat is […]