Helium lifts balloons and makes our voices squeak. But its supply on Earth is finite and is critical for modern industrial processes and medical imaging in hospitals. How worried should we be?
Layering substances like graphene in new ways could help us to build quantum computers or transmit electricity over long distances.
Advanced materials that seem like they come from Star Trek are becoming reality today.
Physicists have for decades tried and failed to make superconductors that work at room temperature. But we're finally getting closer.
Just what is a superconductor? And what can it be used for? Research using superconductors at higher temperatures opens up more possibilities for this fascinating class of materials.