The red-eye effect that can appear in photographs is caused by the reflection of the camera flash from blood vessels at the...

Stories from Physics 11-14 14-16

It has long been known that spinning a shallow dish of a reflective liquid, such as mercury, can create a parabolic mirror...

Stories from Physics 11-14 14-16

During the construction of the Hubble Space Telescope’s mirror, a device called a null corrector was used to shine a beam of...

Stories from Physics 11-14 14-16