This winter in Bristol has been even gloomier than usual – so I was really looking forward to the Bristol Light Festival 2026. We went on the last evening of the event (28 February) and we were ...

Light's shadow: Researchers showed that a laser beam can sometimes act like a solid object and cast a shadow that is visible to the naked eye. In the picture, the shadow appears as the horizontal line ...

The modern English word physics is etymologically derived from the ancient Greek word φυσικός (phusikós, “natural; physical”), which is in turn from the ancient Greek φύσις (phúsis, “origin; nature, ...