Polimi_Credits_Alessia_Candeo (IMAGE) Politecnico di Milano Caption The technique was demonstrated on helium atoms: here the research team was able to manipulate the electronic energy levels, and the motion of electrons was subsequently measured. Credit Alessia Candeo - Politecnico di Milano Usage Restrictions no 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.