Mdern and ancient small wood samples (IMAGE) University of Oulu, Finland Caption Accurate NMR measurements can provide historical information from very small samples. The picture shows the archaeological wood samples examined, seen from left 1 to 3, the first modern samples of spruce, maple and chestnut and 4 to 6 the archaeological samples the in same order. Image Otto Mankinen / University of Oulu Credit Otto Mankinen / University of Oulu Usage Restrictions Media may freely use the university’s press pictures in articles related to research, teaching, learning and other activities conducted at the University of Oulu. All other use is prohibited. Please, always credit the images to: University of Oulu / photographer's name. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.