name one difference between birds and children
New video on the Hubble Sequence! Had a lot of fun making this one, enjoy!
LOL, this whale popped out the ocean like, “Hey, what’s up, hello?!”
P.S. those kayakers are super soaked but totally fine.
Botanical Artist Uses Foraged Materials to Create Organic Works of Art
Taylor Swift - Viva La Vida (Cover)
Geologist Andrés Ruzo first heard about the boiling river as child, but it was always thought of as mythical. It was considered “a place of spirits.” But when Ruzo’s aunt insisted a boiling river existed in Peru, he set out to find it. Now, Ruzo is the first scientist to be given the blessing of the local shaman to study the boiling river. Ruzo talks about the mysterious nature of the boiling river on the latest episode of the TED Radio Hour.
HOW DID I SCREW UP THIS BAD
Scientists have solved a longstanding mystery about how some fish seem to disappear from predators in the open waters of the ocean, a discovery that could help materials scientists and military technologists create more effective methods of ocean camouflage.
In a paper published this week in Science, a team led by researchers at The University of Texas at Austin reports that certain fish use microscopic structures called platelets in their skin cells to reflect polarized light, which allows the fish to seemingly disappear from their predators.
Polarized light is made up of light waves all traveling in the same plane, such as the bright glare you sometimes see when sunlight reflects off the surface of water.
Under the surface of the water, light tends to be polarized. Many fish—and sophisticated modern satellites—have the ability to detect variations in such polarized light.
“Fish have evolved the means to detect polarized light,” said Molly Cummings, professor of integrative biology in the College of Natural Sciences. “Given that, we suggested they’ve probably evolved the means to hide in polarized light. If we can identify that process, then we can improve upon our own camouflage technology for that environment.”
Whether it’s a predator pursuing a fish or a satellite seeking an adversary, light patterns help with detection of targets in the the open ocean in three ways: through brightness contrast, color contrast and polarization contrast. Of the three, polarization contrast is considered most effective for detection in the open ocean.
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The Solar System