Topic: color

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Deep Look: What Gives the Morpho Butterfly Its Magnificent Blue?

What does it mean to be blue? Let's look deep into something called structural coloration, the physics of light, and how it's possible that the Morpho butterfly's wings appear to be blue, despite their containing no b...

Ocean sponges have incredible filtering power

Ocean sponges are fascinating multi-cellular animals that don't walk or swim. They eat by filter-feeding, straining the water around them to capture organic debris particles and microscopic life forms. How powerfu...

Painting a Siggi Eggertsson mural for the Iceland Design Centre

In 2012, sign and mural painters Skiltamálun Reykjavíkur teamed up with visual artist Siggi Eggertsson to paint a mural for the Iceland Design Centre in Reykjavik. Watch as these culture-filled stamps come together in...

Sesame Street & OK Go: Three Primary Colors

Three Primary Colors (2012): File this instant Sesame Street classic by OK Go under "super-catchy song that we sang all day today". In the archives: Watch more videos from Sesame Street and OK Go.

Minute Physics: Why Is The Sun Yellow and The Sky Blue?

Why is the sun yellow and the sky blue? Why can we see the stars at night? Why is space black? And why is the sky more red, orange, and even pink at sunset? In this Minute Physics episode, we leap into "the grand ball...

How do we study the stars & how do we measure extreme distances?

How can we know so much about other galaxies? What are they made of? How big are they? How far away are they from Earth? "Want to know the secrets of the universe? Just follow the light." These two TED Eds fro...

Pygmy Seahorses: Masters of vibrantly-colored coral camouflage

The vibrant colors of thumbnail-sized Pygmy Seahorses have always been aligned with the brilliant oranges or purples of the Gorgonian sea fan corals that they're found camouflaged with, but until biologists at San Fra...

The Grand Prismatic Spring: One of Nature’s Most Amazing Sights

Yellowstone National Park's Grand Prismatic Spring may be the nation's largest hot spring, but it's primarily known for its vibrant rainbow of colors. Created by the unique bacteria and algae that live within each hue...

Why do leaves change color?

The arrival of autumn is a great reason to talk about chemistry: When tree leaves change from green to reds, oranges, yellows, and browns, we're seeing the tree's green chlorophyll fade away, revealing hidden autumnal...

Shake Your Silk-Maker: The Dance of the Peacock Spider

When a peacock spider dances, how do we know that it's a really, really good dancer? From their colorful, iridescent body displays, to their wide variety of dance moves, to the different rhythms that they "sing" while...

Spectroscopy of Stars – Wonders of the Universe

Understand what the universe is made of by looking at the light of its stars. In this clip from Wonders of the Universe – Stardust, Professor Brian Cox demonstrates how chemical elements emit a unique set of colors wh...

Mr Rogers: How Crayons Are Made

Mix hot liquid wax, hardening powder, and some color pigment. Pour the mixture into a mold of small cylinders, and after it cools, pop them out! Label them, collate them, and box them. This classic 1981 crayon factory...

Testing Fireworks

How do you know that the fireworks you've made are going to burst in the sky as expected? Test them! In this episode of I Didn't Know That, visit one of the UK's leading fireworks manufacturers as they test the compon...

The Egg Painter: Painting traditional Pysanky Easter eggs

The Egg Painter, a beautiful profile of Elena Craciunescu and the traditional Easter egg painting that she skillfully enjoys in a small village in Romania’s northern region of Bukovina. ...

Jule Waibel’s 25 dresses for 25 cities

The geometry of folding meets fashion in this video for German designer Jule Waibel and her collection of 25 paper dresses. Folded from huge sheets of colorfully designed paper, they were dis...

Paint Showers: A stop-motion thunderstorm of paint

Paint Showers by Miguel Jiron.

Lullatone: Experiments Around the House

From Shawn James Seymour and Yoshimi Tomida of Lullatone, enjoy Experiments Around the House (2011),

A Male Sapphirina copepod (or Sea Sapphire)

This is a male Sapphirina copepod or Sea Sapphire, transparent and only a few millimeters long, but attention-grabbing when they seem to emit an incredible blue flash. What causes luminous color from nothing? The R...

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