• Articles

    Layering elements with z-index – Web design tutorial (using the Old UI)

    Even for 2D elements, our third dimension, the z-axis, represents stacking order. In other words, what elements stack or overlap on top of other elements? Changes to z-index don’t actually move our elements. This isn’t controlling real depth. But z-index does help us position elements when we stack them. Essentially, elements with a higher a z-index value show up on top of elements with a lower z-index value. There are some caveats: If we have two elements (each of these elements has children), z-index will control stacking for those parent elements. But if element A has a higher z-index than element B? The children of element B can never overlap…

  • 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…

  • Did Google Just Achieve ‘Quantum Supremacy’?
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    Did Google Just Achieve ‘Quantum Supremacy’?

    Quantum computers are on the horizon, and they’ve been stuck there for quite some time. All the theoretical advantages they promise over classical computers, like speeding up drug development, helping to manufacture room temperature superconductors, and cracking encryption remain just that: theoretical. However, a leaked paper from Google claims that for the first time a quantum computer used its unique quantum properties to absolutely dominate a classical computer in a specific task, demonstrating what’s known as “quantum supremacy.” The paper was posted in September of 2019 on NASA’s website, since NASA and Google are collaborating on the project. Almost as suddenly as it appeared, it was taken down again. But…

  • 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,…

  • 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…

  • Every finite Integral Domain is a field Proof |Maths |Mad Teacher
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    Every finite Integral Domain is a field Proof |Maths |Mad Teacher

    Hello everybody in this video we are going to prove that every finite integral domain is a field So if you’re interested in that then just keep watching the video Yeah, please subscribe it won’t hurt So, to start the proof we suppose a random finite integral domain and use its features to prove that it is a field But before that let’s revisit the definition of integral domain real quick So integral domain is basically a commutative ring with identity 1 is not equal to 0 and containing no zero divisors Here 1 is not equal to 0 means that multiplicative identity, that is 1 is different from additive…

  • Neuromorphic Computing Is a Big Deal for A.I., But What Is It?
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    Neuromorphic Computing Is a Big Deal for A.I., But What Is It?

    We often talk about how traditional computing is reaching its limit–there’s a threshold we can’t move past without making some seriously big changes to the way we structure computers. One of those exciting ways is by making physical computers a little more like human brains. We introduced this concept in more detail here, but a quick recap: this kind of computing is called neuromorphic computing, which means designing and engineering computer chips that use the same physics of computation used by our own nervous system. This is different from an artificial neural network , which is a program run on a normal computer that mimics the logic of how a…

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    This Is What Neutrinos Look Like When Scientists Catch Them

    Does this image look familiar? You may know it as an album cover for the famous post-punk band ‘The Strokes’, but I’ve got a surprise for you. It’s really a picture of charged subatomic particles inside a giant bubble chamber. Yeah, you heard me right. This artistic, iconic image is a visualization generated by one of the many interesting ways we’ve tried to ‘see’ the subatomic particles in our world…which is harder than it sounds. And that’s because subatomic particles can be…tricky. Take neutrinos, for example. They’re a fundamental particle of the universe, and they are quite literally everywhere around us, all the time–you have neutrinos passing through you right…

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    We’re Using Stem Cells to Reverse Baldness and It’s Actually Working

    Some very hairy mice are bringing us another step closer to un-LOCKing a way to regenerate a full head of hair. Did somebody say a pun?! About 50% of men and 25% of women experience at least partial hair loss by the age of 50, whether due to age, medical treatments, or disease. Current options for those looking to reverse this loss include things like medications that may slow hair loss and transplants from hair follicles elsewhere on the body. But neither have the often desired effect of restoring a thick and full volume of hair. Researchers have been optimizing techniques for culturing “hair follicle germs” in a dish for…

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    China’s Crazy Plan to Launch an Artificial Moon

    Guess what? China has announced plans to launch an “artificial moon” into our skies by 2020. And, as crazy as that sounds, it’s not actually the first time something like this has been attempted. But first. China’s new plan. As reported in China Daily, China plans to launch an “illumination satellite” into orbit above the city of Chengdu. Well actually, four illumination satellites. The first as a proof of concept in 2020 and the next three as the real deal in 2022. There aren’t a ton of details about the satellites themselves yet, like how big they are or what they will be made of, but we DO know they’ll…