Most materials expand when heated. A few, such as water just above freezing, contract. Now, for the first time, physicists have found a material that switches from expanding to contracting in the ...

A high-resolution TEM image of the nanoparticles studied in this work. Courtesy: J Belo Most materials expand when they are heated up and contract when cooled down – a phenomenon known as positive ...

Introduction Do you enjoy wrapping gifts for people? Perhaps you have even curled a ribbon with scissors (or watched someone else do it). Have you ever wondered why the ribbon curls when you run a ...

Using heat to move mirrors sounds simple, but it opens the door to finely tuned adjustments in everything from satellites to ...

A research team from Penn State has broken a 165-year-old law of thermal radiation with unprecedented strength, setting the stage for more efficient energy harvesting, heat transfer and infrared ...

Physicists have been puzzling over conflicting observational results pertaining to the accelerating expansion rate of our Universe—a major discovery recognized by the 2011 Nobel Prize in Physics. New ...

The polyamorphsim in amorphous materials is one of the most fascinating topics in condensed matter physics. In amorphous metals, the nature of polyamorphic transformation is poorly understood. Here we ...

Left: Initial temperature and density setup, which mirrors conditions of the stable and isobaric burning process. Middle: the ion scattering trajectories for large or small angles, and the boundaries ...

Report by BC Professor of Physics David Broido and international colleagues confirm high thermal conductivity predicted for isotopically enriched cubic boron nitride Research by Professor of Physics ...