Micro-optics are optical systems that are between a few micrometres and a millimetre in size. This includes small lenses or arrays of lenses, or optical fibres with a microscale core diameter. Such ...

Fibre optics and optical communications is the use of thin strands of glass for sending information encoded into light over long distances. Total internal reflection prevents light inserted into one ...

In 1662 Charles married Portuguese infanta Catherine of Braganza, daughter of King John IV (she is buried in Portugal). They had no children but Charles had 13 children by various mistresses. Charles ...

Above: A Von Karman vortex street downwind of the Canary Island chain in the eastern Atlantic Ocean off the coast of Africa on Feb. 27, 2015. Image credit: NASA Worldview. Editor's note: Meteorologist ...