Nowadays, single-color and multi-color flashing LEDs are easily available, which obviates the requirement of external chips to produce fascinating lighting effects ...

Gold in a branch on the sunny side of a tree. Scarlet in a shrub. The first flashes of color mean that fall is coming soon. Leaf color is a sign that trees are preparing for winter by entering the ...

Light effects have always been popular. Now that LEDs are available in all sorts of shapes, sizes and colours for reasonable prices, a whole gamut of possibilities has become feasible. Examples are ...

Why do blinking crosswalks have a blinking yellow light to warn motorists that someone is crossing? Shouldn’t it be a blinking red light as this means for traffic to stop completely where a blinking ...

A strange series of color flashes that turned the night sky reddish in Bethel, Ohio, has gotten international attention, as people scramble for a good explanation. So far, nobody seems to have one, ...