The invention of tiny devices capable of precisely controlling the direction and behavior of light is essential to the ...

Researchers have built a paper-thin chip that converts infrared light into visible light and directs it precisely, all without mechanical motion. The design overcomes a long-standing efficiency-versus ...

Metasurfaces in which nonlocal light-matter interactions take place are a potentially useful variant of traditional ...

Auroras are nature’s most special light show: when charged particles from the sun hit our atmosphere, they can generate bright colors that dance across the night sky near the Earth’s poles. Auroras ...

A kicker pattern is a two-bar candlestick indicator forecasting sharp trend reversals in asset prices. Learn how it ...

At this point you must decide which and how many segments to target. To begin, consider various possible “coverage patterns.” These patterns are simply the ways a firm might choose and ultimately ...

A positive club path angle means an in-to-out swing. A negative club path means an out-to-in swing. A positive face angle ...

Nature rarely does straight lines. If you look at a forest, a rock, or a coastline, you see all sorts of shapes and chaos.