A fascinating interactive LEGO model of CROCUS, a zero-power, uranium-fueled, water-moderated fission reactor used for teaching and research purposes at Switzerland’s École Polytechnique Fédérale de Lausanne (EPFL), has been created by Vincent Lamirand, a scientist at EPFL’s Laboratory of Reactor Physics and Systems Behaviour. Lamirand, who teaches courses on reactor experiments and radiation detection and leads the experimental research with CROCUS, is using the model to teach his students about the reactor. He is hoping that the LEGO company will eventually produce his model for the public to purchase.

A newly released study led by physicist Paolo Ricci has revised a fundamental, foundational law of plasma generation and nuclear fusion by showing that more hydrogen fuel can safely be used in fusion reactors, thereby generating more energy than previously thought possible. Ricci, of the Swiss Plasma Center at the Swiss Federal Institute of Technology in Lausanne (EPFL), explains that his team’s results indicate that tokamaks, such as the international collaborative project ITER, could use almost twice the amount of hydrogen fuel in their plasmas without the danger of disruption, or loss of confinement of the plasma.

The research team’s findings amend one of the long-time limitations (the so-called Greenwald limit) in generating and sustaining the high-temperature plasma needed to produce fusion energy.