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Close-Up Shots Of Peacock Feathers 

4/17/2016

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Photos: Waldo Nell
Waldo Nell, a Canadian software engineer and photographer, captured the feathers of a peacock magnified over 500 times. Not least are they beautiful photographs, they also reveal some of the science behind the iridescent glow of a peacock’s plumes.
From green to golden to blue and indigo, the photographs reveal the mix of colors that give peacocks their distinctive appearance. But the actual pigmentation of the feathers only plays a part in peacocks’ coloring. Much of it comes from small nanostructures on their feathers’ barbules, which give them an iridescent shimmer.

As the direction of light changes, these different facing barbules reflect the light at different angles, resulting in the feathers appearing to change color and shimmer as they move. You can also see this effect on butterfly wings, beetle shells and other birds such as hummingbirds.

Source:  www.iflscience.com

Waldo Nell, un ingeniero canadiense y fotógrafo, que capturó las plumas de un pavo real amplificadas más de 500 veces. No menos importante son  hermosas fotografías, pero  también revelan algo de la ciencia detrás del brillo iridiscente de las plumas de un pavo real.

De verde a dorado a azul e indigo, las fotografías revelan la mezcla de colores que le dan su aspecto distintivo a los  pavos reales. Pero la pigmentación real de las plumas sólo juega un papel importante en la coloración pavos reales. Gran parte de ella proviene de pequeñas nanoestructuras sobre las bárbulas de sus plumas, que les dan un brillo iridiscente.

A medida que la dirección de la luz cambia, estas diferentes bárbulas  reflejan la luz en diferentes ángulos, lo que resulta en que las plumas parece que cambian de color y el brillo a medida que avanzan. También puede ver este efecto en las alas de las mariposas, conchas de escarabajos y otras aves como los colibríes.

Fuente: www.iflscience.com

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