• Light Pollution Is One of the World’s Biggest Buzzkills…Here’s Why
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    Light Pollution Is One of the World’s Biggest Buzzkills…Here’s Why

    Have you ever come home from a long day to find your front door swarmed by flying insects? Or more accurately, your front door’s light? Turns out, that’s more than a minor inconvenience. Light pollution is contributing to worldwide insect decline and that’s actually a huge problem. Insects may seem pesky. They bite and sting us, flutter and scuttle into our houses, swarm around our faces and eat our crops. But actually, of all the insects in the world, only 1% of them are pests responsible for any real damage! And almost all insects play really important roles in our world. For instance, many are pollinators, so they keep ecosystems…

  • Noise Pollution Is a Bigger Deal Than You’d Think
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    Noise Pollution Is a Bigger Deal Than You’d Think

    [♪ INTRO] In 2001, shortly after the September 11th attacks in the United States, something strange happened to a group of whales near eastern Canada: They relaxed. Specifically, researchers found lower levels of stress-related hormones in their poop, which is apparently how you measure these things. And this didn’t seem to be a coincidence. In fact, after more observations, there seemed to be an obvious cause: Right after 9/11, the waters off the east coast of North America were quiet. There were fewer ships than normal, and the whales appeared to let out a collective sigh of relief. At least, figuratively. This study was pretty famous when it finally came…

  • 6 Microbes Saving the Environment
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    6 Microbes Saving the Environment

    Thanks to Brilliant for supporting this episode of SciShow. Go to Brilliant.org/SciShow to learn how you can take your STEM skills to the next level! [♪ INTRO] Ever since humans found out germs were a thing, we’ve had a vendetta against microbes. The idea that death can be doled out by stuff we can’t even see is pretty unsettling. So we invented antibacterial soap and antibiotics and antifungals, and we went a little bit overboard in the end with the anti-everythings. And as a result, we’ve often ignored the existence of good microbes. With the exception of the ones that give us cheese and yogurt and beer and bread, of…

  • Scientists Just Broke a Quantum Record; What Happens Next?
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    Scientists Just Broke a Quantum Record; What Happens Next?

    One of the reasons quantum mechanics is hard to get your head around is because it’s just so friggin’ weird. Things at the quantum level behave completely counterintuitively, compared to what we’re used to out here on the macro-scale. Recently, though, scientists have announced possibly the largest objects yet observed being governed by quantum physics. Macroscale objects doing quantum things sounds absurd; at least, Erwin Schrödinger thought so. That’s what Schrödinger’s cat is all about. The famous thought experiment says that if a cat is in a box with an atom that has a 50-50 chance of decaying and setting off a Rube Goldberg murder machine, then, according to one…

  • What Is The Carbon Cycle – Part 1| Environmental Chemistry | Chemistry | FuseSchool
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    What Is The Carbon Cycle – Part 1| Environmental Chemistry | Chemistry | FuseSchool

    All elements and some compounds have their natural cycle in Nature for example the water cycle Matter is cycled using energy usually from the sun And in this video, we’ll be considering the carbon cycle We will see how photosynthesis and respiration Help carbon to be cycled in nature again using energy from the sun And we will also see the part played by mankind when we use fossil fuels First of all the natural carbon cycle can you remember what the process is called where plants? capture Carbon and give off oxygen Pause the video whilst you think Did you remember that this process is called? Photosynthesis The Carbon…

  • This Diagram of Earth Is a Lie
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    This Diagram of Earth Is a Lie

    Thanks to Brilliant for supporting this episode of SciShow. Go to brilliant.org/SciShow to grab a gift subscription to help your loved ones spark a lifelong love of learning. {♫Intro♫} When you learned about the Earth’s interior in elementary school, you were probably shown a diagram that looked like a perfect layer cake. You had the thin crust, the thicker section of the mantle, the outer core, and the inner core, and everything was smooth and even: perfect nested spheres. I hate to burst your bubble, but… we’ve known for a long time that that diagram just isn’t true. At least, when it comes to the mantle. In reality, the Earth’s…

  • Earth, Two Degrees Warmer
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    Earth, Two Degrees Warmer

    Nothing says Friday like a hard-hitting report on climate change! A new, pretty serious climate change forecast came out this week in the journal Nature Climate Change, and it suggests there’s a 95% chance the Earth’s average temperature will increase more than two degrees Celsius this century. And that isn’t great news — but there might still be time to stop it. When you hear scientists talk about limiting climate change, you usually hear something about how we shouldn’t let the Earth warm by more than two degrees Celsius. What they mean by this is that we should make sure that, this century, the Earth’s average temperature doesn’t get more…

  • The Biggest Herb on Earth is… a Banana?!
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    The Biggest Herb on Earth is… a Banana?!

    [INTRO ♪] Despite what you may have heard, bananas don’t grow on trees! And I know, I know—banana plants look like trees, with tall thick trunks and leaves on top, but they’re actually really big herbs. And the tallest of them all, a wild banana species called Musa ingens, can grow as tall as 15 meters, making it the largest herb on Earth! The main thing that disqualifies banana plants from treehood is that they don’t have any wood. Wood is a particularly tough type of plant tissue containing a molecule called lignin. It can be found in a variety of vascular plants—that is, plants with a circulatory system for…

  • NASA’s Exoplanet Hunter Is Getting Us One Step Closer To Another Earth, Here’s How
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    NASA’s Exoplanet Hunter Is Getting Us One Step Closer To Another Earth, Here’s How

    The results are in, my friends:  NASA’s Transiting Exoplanet Survey Satellite has identified over 850 candidate exoplanets, or planets outside our solar system, some of which have the potential to support life. TESS, that hardworking gal, has been on this exoplanet-hunting mission for over a year. And not only has this satellite exceeded the wildest dreams of the many scientists who use it to find exoplanets, but it has also gathered unprecedented data on other astrophysical phenomena, like exocomets and supernovae. TESS uses four large, specially designed cameras that are able to scan the sky for stars outside our solar system. The cameras view overlapping sectors of the sky for 27 days at…