Excitons, encountered in technologies like solar cells and TVs, are quasiparticles formed by an electron and a positively charged "hole," moving together in a semiconductor. Created when an electron ...

Last year's record-breaking temperatures could be a sign that the world is entering a new era above 1.5C of global warming, ...

For gravity wave clouds to form, the atmosphere must be in a relatively stable state. Under calm conditions, the air exhibits vertical motion, where warm (less dense) air rives, and cool (more dense) ...