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    The Discovery Files

    An upbeat, entertaining look at the latest advances in science and engineering. Often fun and always fascinating, each episode covers a project funded by NSF -- federally sponsored research, brought to you by you!
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    Episodes (100)

    Smart Streetscapes

    Smart Streetscapes
    How are you connected on the street where you live, the street where you do business, the street you share with neighbors? But how could a smarter street improve your life? Could technology help guide disabled pedestrians, eliminate traffic bottlenecks, enhance trash collection and pest control, improve emergency services, protect people from environmental and health threats. “Smart Streetscapes,” a new National Science Foundation Engineering Research Center, aims to create livable, safe, and inclusive communities. Learn more on NSF’s “The Discovery Files.”

    Carbon Negative Cement

    Carbon Negative Cement
    Cement is one of the most widely used industrial materials, essential in the construction of buildings and highways. The United Nations predicts that, by 2050, two-thirds of the world’s population will be gathered into cities, demanding more new buildings, more new roads, more cement? Yet, the manufacture of cement contributes up to 8% of carbon dioxide emissions worldwide. What is the solution, as we handle the increasing demand for new infrastructure? Is there an alternative? Learn more on NSF’s “The Discovery Files.”

    What Weddell Seal Moms Sacrifice

    What Weddell Seal Moms Sacrifice
    What makes Weddell seals such excellent divers, routinely able to forage underwater for food as long as 20 minutes at a time? Did you know they have natural, internal scuba tanks? Weddell seal moms make an extraordinary sacrifice to help prepare their offspring for such extended underwater dives. But how? And could climate change play a role, putting mothers nursing seal pups at great risk? Learn more on NSF’s “The Discovery Files.”

    Did Shipwrecked Horses Survive?

    Did Shipwrecked Horses Survive?
    Off the coast of Maryland and Virginia, on the island of Assateague, a centuries-old mystery is coming to light. Folklore has it that a shipwrecked Spanish galleon had been carrying a herd of horses that survived by swimming to the shore. The oldest sequenced DNA ever found in the molar of an ancient horse from the Americas, is giving credence to that story. Learn more on NSF’s “The Discovery Files.”

    Shedding New Light on Dark Matter

    Shedding New Light on Dark Matter
    Planets, interstellar gas, and stars that illuminate the night sky account for only 15% of the matter in the universe. So, how important is a “Cosmological Signature” and what is “Cosmic Microwave Background”? What does either have to do with scientists’ search for invisible, dark matter, 85% of the universe, created in the wake of the “Big Bang”? Learn more on NSFs “The Discovery Files.”

    A Mega Predator Of Predators

    A Mega Predator Of Predators
    Imagine! A prehistoric, megatooth shark that lived as recently as 3.6 million years ago, measuring almost 70 feet in length, and living at the very top of its food chain. While others focus on today’s sharks, explore with us the largest marine predator that has ever existed, a creature with the power of 276 teeth, each the size of a man’s hand. Learn more on NSF’s “The Discovery Files.”

    Protective Food Packaging

    Protective Food Packaging
    As the cost of buying groceries rises, food spoilage sends up to 40% of America’s food into landfills, and foodborne illness causes 420,000 deaths per year worldwide, could an innovative medical technology born on the battlefield be the solution? Researchers adapted that technology to develop a food packaging system that is biodegradable, protects against microbial contamination, and extends shelf life. Learn more on NSF’s “The Discovery Files.”

    Brains in Space

    Brains in Space
    The infinite adventure of space travel has us reaching for the stars, but the harsh environment of space poses serious physical challenges on our bodies. Scientists reviewed MRI images of the brains of 14 astronauts, taken before and after extended stays on the International Space Station, to see the effect of space travel on the brain. Learn more on NSF’s “The Discovery Files.”

    Enhancing AI Diagnosis

    Enhancing AI Diagnosis
    The wide range of applications for artificial intelligence alone are impressive. Researchers used mammograms of breast cancer to compare radiologists and AI assessments, to understand how AI and humans look at the images and find regions of potential concern. They learned, when you pair up human and artificial intelligence, it could mean earlier and more accurate cancer detection. Learn more at NSF’s “The Discovery Files.”