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zakruti.com » Knowledge, science, education » TED-Ed
Earth's mysterious red glow, explained - Zoe Pierrat

Earth's mysterious red glow, explained - Zoe Pierrat

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Rating: 4.5; Vote: 2
Explore the phenomenon and uses of chlorophyll fluorescence, a small amount of light emitted by plants during photosynthesis. In 2009, a satellite circled Earth, scanning and sorting the wavelengths reflecting off the planet s surface. Researchers noticed something baffling: an unexpected wavelength of unknown origin. They tried looking at Earth with only this wavelength, and saw the planet covered in a red hue of varying intensity. So, what was going on? Zoe Pierrat explores the science of chlorophyll fluorescence
Date: 2021-09-14

Comments and reviews: 10


Just another curious fact of plants (Sorry my english, i'm Brazilian): Staghorn Ferns can be the first know plant to be eusocial, living in a colony much like bees and ants, having different caste fronds for different Jobs within the colony, cooperative kin care, reproductive division of labour and a wide network of roots within the colony that may be used by some fronds to help the colony with water in drier times
That's Just some facts that i thought would bem cool to share with you guys: 3
I love plants a Lot ksksksksks
I thought It would be good If you guys talked about this so New discovery in the plant kingdom social behaviour

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Just imagine, how many colours we're not able to see because of their varying wavelengths.
And maybe I went too deep, but think how much goodness is not being appreciated because of the limited capacity of our perspectives. To enjoy these beautiful colours, one just needs to increase the capacity of their lens and widen their horizons.
It's fascinating how much science can teach us.

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Actually, scientists have known about chlorophyll fluorescence for at least a century - photos taken with IR-sensitive film (available since early in the 20th century) show plants as bright white beings! It's a phenomenon often used to make dramatic photographs.
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Just a question: Is this replicable to phytoplankton's in the sea? I assume they have the highest photosynthetic activity on earth and hence we should see massive red radiation from the seas and oceans
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Watching this while on break from work - brilliant! Videos like this one keeps me inspired about our Earth despite the mundane minutiae we go through every day.
I am looking at a tree right now.

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Great video, but I think something's wrong with the animation at 3: 42. The animated red dots appear in the ocean whereas it appears on land elsewhere in the video.
Regardless, great video!

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Those satellites passing at 3: 53ish slowly overhead as people are doing activities looks like they are spying rather than monitoring plant wave lengths.
They made it creepy.

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Ted ed's introduction of new concepts that even majority of the people never heard in a really simplified manner makes you love more and more. Let ur quality education reach billions
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Why do see plants specificlly
In green?
Because it absorbs the red waves
And reflect the rest waves of the light?
I need a full understanding please

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Humans exploring deep space, searching exotic quantum particles, try to interact with dark matter(and energy, but baffled by the wavelengths emitted by the plants!
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