• What If Dark Matter Doesn’t Exist?
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    What If Dark Matter Doesn’t Exist?

    Dark matter has been the go-to explanation for many scientists as to why there seems to be more gravitational influence in our universe than the gravity measured by visible matter. But what if there’s no dark matter at all? The idea of dark matter was first proposed by Henri Poincaré in 1906. Then in 1933, evidence of dark matter was found by Fritz Zwicky while studying galaxy clusters… And then more evidence of dark matter was found based on the calculations of rotational velocities in galaxies made by Vera Rubin in 1978. Our universe is made up of less than 5% of visible matter—like stars, planets, galaxies you, me, everything…

  • AHHHHHHH!! How Blood-Curdling Screams Affect Your Brain
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    AHHHHHHH!! How Blood-Curdling Screams Affect Your Brain

    A really good scream is a beautiful thing, evolutionarily speaking. It can cause wide-reaching results, and when paired with a threat? Ohhhhh man. Fear can set off what’s called a defense cascade — a set of behaviors that cause you to… run or defend yourself… – freeze because you’re so scared… – or keep you from shouting or moving at all! – sometimes it can cause you to fall over – or even faint to protect yourself! Seriously, fear is really powerful. The source of this emotional response is buried deep in your brain; in a set of neurons called the amygdala. The fear can be emotional like abandonment, or…

  • Goodbye Silicon! Your Next Computer Chip Could Be Made of Gallium Oxide
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    Goodbye Silicon! Your Next Computer Chip Could Be Made of Gallium Oxide

    Sending astronauts to space used to take a computer the size of a washing machine. Now? That same computational might can be packed into something as small as an iPad! But as we aim for smaller devices, we’re hitting a threshold…our current materials and techniques may not allow us to continue to progress at this pace. Because of this we’re being pushed in new and exciting directions, like innovating the very stuff computers are made of: goodbye silicon, hello gallium oxide. Traditionally, computer chips have been made out of silicon–hence the name ‘silicon valley’. A computer chip transistor needs to be conductive, because it needs to be able to pass…

  • Scientists Claim They Made Time Go Backwards…But Did They?
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    Scientists Claim They Made Time Go Backwards…But Did They?

    Time travel to the past is basically impossible without breaking some laws of physics and acquiring plutonium from some Libyans. But time travel to the future is easy, we’re all doing it right now. So why does time go forward and not back? The idea that time only flows in one direction is called the Arrow of Time. But odd as it sounds, there’s nothing in the equations that describes the laws of physics that says it has to be this way. The equations CAN tell you what will happen in the future or what took place in the past based on what’s going on in the present, but they…

  • Are Those Your Lips or Feet? How Your Brain Rewires Itself After Amputation
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    Are Those Your Lips or Feet? How Your Brain Rewires Itself After Amputation

    Even though it looks like a random, bumpy mess, your brain is incredibly organized. Your brain has its own version of google maps for navigating the world around it — but just how flexible are these maps to changes? Every sound you can hear or touch you can feel is because neurons in a specific part of your brain are firing. Our brains are organized “topographically”so that we can keep track of where things are happening, … that means we can tell the difference between a touch on the arm or a touch on the face. By observing people’s brains in different imaging machines, neuroscientists have largely mapped out touch,…

  • We Could Live in Caves on the Moon, Here’s Everything You Need to Know
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    We Could Live in Caves on the Moon, Here’s Everything You Need to Know

    When we imagine lunar colonies, they mimic cities in a small scale and have sweeping vistas that include the Earth hanging above the horizon. But that’s a great way to get cancer super fast since we still don’t know how to protect ourselves from cosmic radiation. So one solution might be to eschew scenic surface colonies in favor of lovely lava tubes. Lava tubes on the Moon are basically the same as the ones we see here on Earth. Back in the Moon’s history when it was geologically active, molten rock flowed over the surface. The outside layer cooled first while the inside kept flowing. But once the Moon’s internal…

  • Are You Under 24? Science Says You Still Have the Brain of a Teen
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    Are You Under 24? Science Says You Still Have the Brain of a Teen

    We define adolescence as the years between childhood and adulthood. The exact age might depend on the country — things like the age you can vote or drink — but it’s roughly defined as being from age 10 to 19. But, a new study is suggesting that adolescence should end as late as 24 to account for the full range of human development. WOOOOOO aww wait i’m still an adult. Compared to other animals, humans give birth to pretty helpless babies. Newborn sea turtles can find the ocean on their own and giraffe calves can walk unaided within hours of being born… Whereas, we can’t even hold our own heads…

  • How Did Science Get Neanderthals So Wrong?
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    How Did Science Get Neanderthals So Wrong?

    Let’s be real, guys, Neanderthals get a bad rap. We think of them as primitive and less developed than us humans with our smooth brow bones and tall posture. But the field of hominid development has been telling us for some time now that this is probably pretty far from the truth. And new research tells us that Neanderthals could have been…just as sophisticated as humans! Why have we been wrong for so long? A lot of our prejudices about neanderthals come from our somewhat mistaken interpretation of the fossil record. When the first neanderthal skeleton was recorded by scientists in the mid 1800s, the conclusion they came to was…

  • Photonic Chips Will Change Computing Forever… If We Can Get Them Right
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    Photonic Chips Will Change Computing Forever… If We Can Get Them Right

    The electrons shuffling around inside our computers move pretty fast, theoretically their top speed in silicon is up to 100,000 meters per second. Which is good because the faster they can move, the faster chips can do calculations, the faster I can refresh twitter. But there will always be something faster. Light. Why don’t we use photons in computers instead of electrons? We already use photons for communication; fiber optic cables are what keep the globe’s computers interconnected as they hurtle data around at light speed. But when it comes time to process that data, we convert light to electrons and run them through transistors. The conversion uses energy and…

  • Will We Ever Be Able to Travel Through a Wormhole?
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    Will We Ever Be Able to Travel Through a Wormhole?

    What happens when you have two black holes, quantum particles and a hell of a lot of gravity all in one place!? Traversable wormholes!! AKA a time machine? Many of you guys might’ve seen this demo of how a wormhole works. So if you have two points on a piece of paper… Like two planets in space that you want to travel between really quickly. If you fold space in half, you can get the two points (or planets) to connect. This is the idea of how a wormhole works… and possibly time travel. But for that to exist, we’d need huge warping of spacetime, which is really hard for…