Logo
    Search

    Why The Science Of Tides Was Crucial For D-Day

    en-usJune 05, 2024

    Podcast Summary

    • Tides and PresenceUnderstanding tides' impact on human activities and their connection to the gravitational forces of the moon and sun can help us appreciate the importance of being present and adapt to life's ebbs and flows

      Being present, while desirable, isn't always easy and it's okay to acknowledge that. Comedians Bo and Yang discussed this on a recent episode of NPR's Wild Card podcast. Meanwhile, in history, the importance of being attuned to the environment was highlighted during the planning of the D-Day invasion in 1944. The tide range in Normandy was significantly larger than in most US locations, making precise timing crucial for the success of the operation. Tides can impact various human activities, from shipping and fishing to floods. Understanding their significance is essential. Now, let's shift gears and talk about tides on a grander scale. Imagine a massive water droplet the size of a planet. This droplet, as it interacts with the gravitational forces of the moon and the sun, creates the tides we observe. The next time you find yourself struggling to stay present or grappling with the complexities of nature, remember the tides - a constant, powerful force that ebbs and flows, much like our own lives.

    • Tidal patterns and natural disastersUnderstanding tidal patterns is crucial for predicting and preparing for natural disasters like flooding, with NOAA using tide charts and climate change data to predict flooding up to a year in advance.

      The earth's rotation and the gravitational pull of the moon and sun cause tidal bulges, resulting in high and low tides. Understanding these tidal patterns is crucial for predicting and preparing for natural disasters like flooding. NOAA uses tide charts and climate change data to predict flooding up to a year in advance. Meanwhile, in other news, India's democracy is facing challenges, with questions surrounding Prime Minister Narendra Modi's hold on power and concerns over cyber hacking and mass arrests. On a lighter note, for those seeking meaning in life, NPR has launched a new podcast called Wild Card, which combines a game show format with deep existential discussions. And in case you missed it, the science behind ocean tides has played a significant role in history, from influencing World War II battles to informing where we build our homes. Stay informed and engaged with these thought-provoking and timely topics.

    • TidesTides are caused by the gravitational pull of the moon and sun on Earth's water, with greatest forces during full or new moons. Humans have observed and studied tides for thousands of years due to their importance to civilization, particularly in coastal areas for food sources and transportation. Understanding tides helps us plan infrastructure.

      NPR Plus is a new way for listeners to support public media and access exclusive content related to their favorite NPR podcasts. During the conversation, the topic shifted to the science behind tides. Tides are caused by the gravitational pull of the moon and sun on the Earth's water. The greatest tidal forces occur during full or new moons when the Earth, moon, and sun are aligned. Humans have been observing and studying tides for thousands of years due to their importance to civilization. Coastal areas, which are often the sites of early civilizations, rely on tides for food sources and transportation. Understanding the patterns of tides helps us plan and build infrastructure along the coastlines. So, whether you're interested in the latest news or the wonders of nature, consider becoming an NPR Plus member for more in-depth content and insights.

    • Tide predictions during WWIIAccurate tide predictions during WWII were crucial for successful D-Day invasion coordination and helped the Allies achieve a significant military advantage

      During World War II, accurate tide predictions were crucial for the success of the D-Day invasion. Scientists used water level observations and complex machines with gears to predict tides, which helped the Allies coordinate landings at multiple beachfronts with varying tide conditions. Even small errors could have significant consequences, and the ability to predict tides decades in advance was a significant military advantage. This technology allowed for precise timing and coordination of the largest seaborne invasion in history, ultimately contributing to the Allied victory in Europe.

    • Tides and Military OperationsClimate change is causing more frequent flooding and shifting tide patterns, making military operations and infrastructure development more complex to plan and adapt to

      The relationship between tides and human activities, such as military operations and infrastructure development, can be significantly impacted by climate change. During historical military operations, like those involving paratrooper landings behind enemy lines, the timing of tides and the moon phases were crucial factors. However, rising sea levels due to climate change are pushing the baseline for flooding closer to shore, making it more frequent and requiring less extreme weather conditions to cause flooding. For instance, a Charleston, South Carolina, tide gauge that saw only one flood event per year a century ago now experiences approximately ten floods annually. This shift in tide patterns complicates planning for various activities and highlights the importance of adapting to changing environmental conditions.

    • Coastal Flooding PredictionNOAA's new model predicts coastal flooding up to a year in advance, using microwave radar instruments and real-time water level data from over 200 tide gauges.

      Even if individual tides may not be exceptionally high in a particular location, the overall sea level is rising, leading to more frequent flooding during high tides. NOAA has recently developed a model to predict coastal flooding up to a year in advance, providing valuable advance warning for affected communities. NOAA's tide measurements are now made using microwave radar instruments, which are about the size of a football and emit microwaves to determine water height. With over 200 tide gauges across the U.S., real-time water level data is constantly collected and averaged every six minutes for various applications, including ensuring safe port entry and monitoring storms and flooding.

    • Tidal energyTidal energy offers hope for renewable power in areas with strong currents through underwater turbines, addressing energy needs in remote locations despite challenges

      Tides not only bring about the ebb and flow of water, but they also offer hope in the form of generating green energy. In areas with strong tidal currents, such as the Bay of Fundy, scientists are exploring the potential to harness this power by installing underwater turbines. These turbines generate electricity as the water pushes against them, providing power to communities that may not have easy access to it otherwise. Despite the challenges of keeping equipment in the ocean, such as fouling and corrosion, tidal power has shown promise. This innovation not only addresses the need for renewable energy sources but also provides solutions for those living in remote locations. The ongoing research and testing in this field demonstrate the potential of tides as a significant contributor to the world's energy needs.

    • Baseball and Civil Rights, Pop CultureBirmingham offers historical significance in civil rights and baseball, with Rickwood Field being America's oldest professional baseball park and a connection to the struggle for freedom, while Bridgerton on Netflix provides extravagant romance, fashion, and controversy in pop culture.

      Birmingham, Alabama, is not just known for its historical significance in the civil rights movement, but also for its rich baseball history. Rickwood Field, the oldest professional baseball park in America, holds a unique connection to the struggle for freedom. Meanwhile, in the world of pop culture, Bridgerton on Netflix continues to captivate audiences with its extravagant romance, fashion, and controversy. Both Rickwood Field and Bridgerton offer intriguing perspectives on history and entertainment, inviting us to explore the past and present in unique ways. To learn more about the stories behind these fascinating topics, tune in to "Road to Rickwood" from WNO and WRKF, and "The Pop Culture Happy Hour" podcast from NPR.

    Recent Episodes from Short Wave

    Dancing Yeti Crabs, Morphing Cuttlefish, Other Stories From The Deep Sea

    Dancing Yeti Crabs, Morphing Cuttlefish, Other Stories From The Deep Sea
    As a kid, Sabrina Imbler loved the ocean. They'd swim and snorkel, following around parrotfish in the water. Later, they tried to learn everything they could about the brightly-colored tropical fish – how some create a mucus cocoon at night to protect it from parasites, or how they help keep coral reefs healthy.

    As they got older, their fascination with sea creatures only grew. Imbler released a collection of essays in 2022 called How Far The Light Reaches: A Life In Ten Sea Creatures. Each chapter focuses on a different marine species – from yeti crabs near hydrothermal vents in the deep sea to the morphing abilities of cuttlefish. Often, these creatures act as a mirror for Imbler to explore parts of their own identity.

    Want more on the wonders of the deep sea? Email us at shortwave@npr.org.

    Learn more about sponsor message choices: podcastchoices.com/adchoices

    NPR Privacy Policy
    Short Wave
    en-usJuly 24, 2024

    Outer Space Changes You, Literally. Here's What It Does To The Human Body

    Outer Space Changes You, Literally. Here's What It Does To The Human Body
    Lower gravity. Higher radiation. No ER access. These are just a few of the challenges that humans face in outer space. Emily and Regina talk to a NASA astronaut (and astronaut scientist) about the impact of spaceflight on the human body. Plus, we learn about telomeres (hint: They change in space)!

    Check out more of our series on space: https://www.npr.org/spacecamp

    Interested in more space science? Email us at shortwave@npr.org.

    Learn more about sponsor message choices: podcastchoices.com/adchoices

    NPR Privacy Policy
    Short Wave
    en-usJuly 23, 2024

    The Brain Makes A Lot Of Waste. Here's How It Cleans Itself Up

    The Brain Makes A Lot Of Waste. Here's How It Cleans Itself Up
    Scientists have long studied the relationship between sleep and the brain, and why poor sleep is linked to neurological diseases like Alzheimer's. NPR science correspondent Jon Hamilton talks to host Regina G. Barber about the brain's washing system and the particular sound researchers have found that seems to turn it on in mice.

    Read Jon's full piece here.

    Interested in more science about the brain? Email us at shortwave@npr.org.

    Learn more about sponsor message choices: podcastchoices.com/adchoices

    NPR Privacy Policy
    Short Wave
    en-usJuly 22, 2024

    How An Ambitious River Rerouting Plan Could Change India's Weather

    How An Ambitious River Rerouting Plan Could Change India's Weather
    More than a hundred years ago, a British engineer proposed linking two rivers in India to better irrigate the area and cheaply move goods. The link never happened, but the idea survived. Today, due to extreme flooding in some parts of the country mirrored by debilitating drought in others, India's National Water Development Agency plans to dig thirty links between rivers across the country. It's the largest project of its kind and will take decades to complete. But scientists are worried what moving that much water could do to the land, the people — and even the weather. Host Emily Kwong talks to journalist Sushmita Pathak about her recent story on the project.

    Read Sushmita's full story here.

    Interested in more science stories like this? Email us at shortwave@npr.org.

    Learn more about sponsor message choices: podcastchoices.com/adchoices

    NPR Privacy Policy
    Short Wave
    en-usJuly 19, 2024

    The Magic — And Science — Of Synchronous Firefly Displays

    The Magic — And Science — Of Synchronous Firefly Displays
    Every year for two weeks between mid-May and mid-June, Congaree National Park in South Carolina is home to a fairy-tale-like display of flashing lights. These rhythmic performances happen all because of thousands of fireflies, flashing their belly lanterns at exactly the same time. According to the National Park Service, there are just three types of these synchronous fireflies in North America, making the experience all the more magical for the lucky visitors who get the chance to see them.

    Firefly scientists and enthusiasts hope these displays in places like Congaree will inspire people to care about other kinds of fireflies, also known as lightning bugs, in the U.S., which are not as well-studied – or well-protected – as synchronous ones. Some community scientists are already taking on this mission with projects like the Firefly Atlas, where volunteers can help survey for fireflies and report sightings.

    This story was originally reported for NPR by science correspondent Pien Huang. Read Pien's full story here.

    Want more of the science behind wildlife wonders? Email us at shortwave@npr.org.

    Learn more about sponsor message choices: podcastchoices.com/adchoices

    NPR Privacy Policy
    Short Wave
    en-usJuly 17, 2024

    This Mysterious Energy Is Everywhere. Scientists Still Don't Know What It Is

    This Mysterious Energy Is Everywhere. Scientists Still Don't Know What It Is
    The universe — everything in existence — is expanding every second! It's only been about a hundred years that humanity has known this, too — that most galaxies are traveling away from us and the universe is expanding. Just a few decades ago, in the late 1990s, scientists started to notice another peculiar thing: The expansion of the universe is speeding up over time. It's like an explosion where the debris gets faster instead of slowing down. The mysterious force pushing the universe outward faster and faster was named dark energy. Cosmologist Brian Nord joins host Regina G. Barber in a conversation that talks about what dark energy could be and what it implies about the end of our universe.

    Check out more of our series on space at https://www.npr.org/spacecamp.

    Curious about other happenings in our universe? Email us at shortwave@npr.org.

    Learn more about sponsor message choices: podcastchoices.com/adchoices

    NPR Privacy Policy
    Short Wave
    en-usJuly 16, 2024

    The Dubious Consent Question At The Heart Of The Human Genome Project

    The Dubious Consent Question At The Heart Of The Human Genome Project
    The Human Genome Project was a massive undertaking that took more than a decade and billions of dollars to complete. For it, scientists collected DNA samples from anonymous volunteers who were told the final project would be a mosaic of DNA. Instead, over two-thirds of the DNA comes from one person: RP11. No one ever told him. Science journalist Ashley Smart talks to host Emily Kwong about his recent investigation into the decision to make RP11 the major donor — and why unearthing this history matters to genetics today.

    Read Ashley's full article in Undark Magazine here.

    Questions or ideas for future episodes? Email us at shortwave@npr.org.

    Learn more about sponsor message choices: podcastchoices.com/adchoices

    NPR Privacy Policy
    Short Wave
    en-usJuly 15, 2024

    Teens Are Following Skincare Trends On TikTok. Some Dermatologists Are Wary

    Teens Are Following Skincare Trends On TikTok. Some Dermatologists Are Wary
    TikTok is fuel for many trends, including a skin care craze among teens, pre-teens — okay, and us. The "glass skin" trend calls for a multi-step routine, often involving pricey products. It's all in pursuit of dewy, seemingly poreless, glowing complexion – like glass. But some dermatologists say these attempts can backfire, irritating, burning and even peeling sensitive pre-teen skin. As teens and tweens have become major consumers of skin care products, dermatologists are seeing more of these cases and are cautioning against these elaborate routines.

    Want more science behind what's going viral? Email us at shortwave@npr.org.

    Learn more about sponsor message choices: podcastchoices.com/adchoices

    NPR Privacy Policy
    Short Wave
    en-usJuly 12, 2024

    Like Humans, These Ants Can Perform Leg Amputations To Save Lives

    Like Humans, These Ants Can Perform Leg Amputations To Save Lives
    Some ants herd aphids. Some farm fungi. And now, scientists have realized that when an ant injures its leg, it sometimes will turn to a buddy to perform a lifesaving limb amputation. Not only that — some ants have probably been amputating limbs longer than humans! Today, thanks to the reporting of ant enthusiast and science correspondent Nell Greenfieldboyce, we behold the medical prowess of the ant.

    Want to hear more cool stories about the tiny critters among us? Email us at shortwave@npr.org — we'd love to know!

    Learn more about sponsor message choices: podcastchoices.com/adchoices

    NPR Privacy Policy
    Short Wave
    en-usJuly 10, 2024

    The Invisible Substance That Structures Our Universe

    The Invisible Substance That Structures Our Universe
    The universe is so much bigger than what people can see. Visible matter — the ground, the Sun, the screen you're reading this on — makes up only about 4 or 5 percent of our known universe. Dark matter makes up much more of the universe. It's all around us even though we can't see it. So what is it? What's it made out of? How do we even know it exists? Host Emily Kwong and Rebecca Ramirez try to find out with the help of astrophysicist Priyamvada Natarajan.

    This episode is part of our series Space Camp, all about the weird and mysterious depths of our universe. Check out the full series: https://www.npr.org/spacecamp.

    Our team would love to hear your episode ideas. Email us at shortwave@npr.org.

    Learn more about sponsor message choices: podcastchoices.com/adchoices

    NPR Privacy Policy
    Short Wave
    en-usJuly 09, 2024