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    SYSK Selects: How Icebergs Work

    enAugust 31, 2019

    Podcast Summary

    • Discovering the Secrets of Icebergs and the William Carson ShipThe Capital One Venture X Card rewards cardholders with 2X miles on every purchase and premium travel benefits, while Purdue Global empowers working adults to earn degrees and advance their careers.

      The Capital One Venture X Card offers cardholders unlimited 2X miles on every purchase, premium travel benefits including airport lounge access and a $300 annual travel credit. Meanwhile, Purdue Global provides working adults with the opportunity to earn a respected degree and take charge of their career and life. During a recent episode of the Step You Should Know podcast, the hosts discussed the fascinating topic of how icebergs work. Despite the common misconception, no souls were lost in the famous sinking of the William Carson ship, although the cars on board did go down.

    • Understanding Icebergs and Glaciers: More Than Just Floating IceIcebergs are large chunks of glaciers, not seawater, posing risks to ships, and understanding their complex nature is crucial for maritime safety and navigation.

      Icebergs are not just chunks of floating ice as they are often perceived. They are large pieces of glaciers that have calved, or broken off, and can pose significant risks to ships, as evidenced by numerous tragic incidents in the past. These icebergs are not made of seawater, but rather fresh water from the glaciers. Glaciers themselves are accumulations of snow that never fully melt in certain latitudes, and can be thousands of years old. Understanding the complex nature of icebergs and glaciers is crucial for maritime safety and navigation. The importance of this knowledge became evident in the last few decades as we started tracking icebergs and learning from the incidents that occurred. Despite the potential dangers, icebergs are also fascinating natural phenomena that continue to intrigue us.

    • Glaciers form ice shelves in the seaGlaciers form ice shelves when they reach the sea, but eventually break off and form large icebergs, revealing their unique properties and shaping landscapes and oceans

      Glaciers are dense, blue forms of ice that move downhill towards the sea due to their own weight. They form ice shelves when they float out into the sea, and the largest ice shelves are found in the northern and southern polar regions. Ice is the only solid phase of water that is less dense than its liquid form, and this property allows icebergs to float in seawater. When glaciers reach the sea, they form ice shelves that can extend for miles, but they eventually break off and form large icebergs. Understanding the unique properties of ice and its role in shaping our planet's landscapes and oceans is essential for appreciating the natural world around us.

    • Icebergs: More Than Meets the EyeIcebergs hide vast secrets beneath the surface, come in various colors, can roll over dangerously, and have long lifecycles. Zigazoo offers a safe online space for kids, Hyundai Santa Fe is a reliable weekend explorer, and icebergs can be up to 10,000 years old.

      Icebergs, though only a fraction of which is visible above water, hold fascinating secrets and present unique dangers. The visible part, known as the tip of the iceberg, varies due to differences in salt concentration and density. Icebergs can be blue, green, or even brown, depending on their age and the organic matter they absorb. However, they can roll over without warning, making them dangerous to approach. On a lighter note, the social media platform Zigazoo, which is KidSafe certified, offers a safe space for kids to share their videos, providing an alternative to traditional weekend plans. Meanwhile, the Hyundai Santa Fe, with its all-wheel drive and three-row seating, offers a reliable means to explore new places and make the most of weekends. Lastly, icebergs have long lifecycles, with some being up to 10,000 years old before reaching the ocean.

    • Icebergs: Sizes, Lifespans, and Impact on Ocean EcosystemIcebergs come in various sizes and lifespans, from car-sized growlers to house-sized Bergy bits, and even massive Ice Islands. They last longer in colder regions and create 'thermal shock' sounds when melting. Icebergs support marine life and can become unstable, creating debris fields.

      Icebergs, formed from glaciers, come in various sizes with different lifespans. The smaller ones, called growlers, are around car size, while larger ones, known as Bergy bits, are house-sized. The largest icebergs, classified as small, medium, large, and very large, are less creatively named. Icebergs that stay in colder regions can last up to 50 years, while those that venture further south disappear more quickly. When an iceberg melts, it creates a "thermal shock" sound, similar to an ice cube in water. The largest icebergs, sometimes referred to as Ice Islands, can become unstable and "explode," creating an ice debris field. Icebergs play an essential role in the ocean ecosystem, providing habitats for various marine life.

    • Icebergs: Size, Shape, and OriginThe largest iceberg on record was B-15, about the size of Jamaica, and icebergs must be over 24 stories tall and longer than two football fields to be considered very large. Formed off Greenland's western coast, icebergs have various shapes and are relatively weak, with about 40,000 medium to large ones calving yearly.

      Icebergs come in various sizes and shapes. The largest iceberg ever recorded was the B-15, which was about the size of Jamaica and approximately 6,800 square miles. To be classified as very large, an iceberg must be about 24 stories tall and longer than two football fields. Icebergs can also be classified by their shape, with tabular icebergs having a flat top and steep sides, and non-tabular icebergs having different classifications such as blocky, flat-topped, steep-sided, wedged, domed, pinnacle, and dry docks. Icebergs primarily form off the western coast of Greenland, with about 20 glaciers in Greenland being responsible for the majority of iceberg production. Icebergs are relatively weak, about 10% as strong as concrete, and are subject to wave motion, storms, and collisions with other icebergs, which can significantly impact their lifespan. Despite these challenges, the iceberg life cycle continues, with roughly 40,000 medium to large icebergs calving from Greenland glaciers each year.

    • Icebergs as Floating Nutrient CapsulesIcebergs release nutrients into the sea, creating a food chain for algae, krill, plankton, and other marine life, and absorb CO2 twice as effectively due to algae growth.

      Icebergs play a significant role in the marine ecosystem beyond just being large floating masses of ice. They are responsible for releasing nutrients from the land into the sea as they melt, creating a food chain that supports various marine life. This food chain includes algae, krill, plankton, and other fish, making icebergs "floating time release nutrient capsules." Additionally, icebergs are a sign of climate change and aid in carbon sequestration in the ocean by absorbing CO2 through the algae that grows on them. This absorption is twice as high around icebergs compared to other areas due to the algae's dependence on the iceberg's presence. Overall, icebergs have a profound impact on the marine ecosystem and the environment beyond their apparent role as large ice formations.

    • A safe social media experience for kids through ZigazooZigazoo is a kid-exclusive, human-moderated app where children can upload content, engage in age-appropriate activities, and interact with verified peers without commenting, text messaging, or bots, ensuring a fun and safe social media experience.

      Social media experiences can be enjoyable and safe for kids when using platforms like Zigazoo. Unlike traditional social media networks, Zigazoo is a kid-exclusive, human-moderated app where children can upload content, engage in age-appropriate activities, and interact with verified peers. With no commenting, text messaging, or bots, Zigazoo prioritizes fun and safety. Meanwhile, in a different context, icebergs, which are often associated with negative impacts such as clogging shipping lanes and damaging seafloors, have also shown potential positive uses. The United States military has explored the possibility of transporting icebergs to provide fresh drinking water for millions of people. Although expensive, this solution could become more viable as water becomes scarcer and more expensive. In summary, Zigazoo offers a positive and safe social media experience for kids, while icebergs, despite their potential negative effects, have the capability to provide a valuable resource in the form of fresh water.

    • Monitoring Icebergs to Ensure Safe NavigationThe International Ice Patrol uses various methods to monitor and warn ships about icebergs, including bombing or painting them for easier detection, while also emphasizing the importance of accurate measurement systems due to the difference between nautical and regular miles.

      The melting of glaciers and icebergs due to rising temperatures and warmer waters is a significant concern for various reasons. One solution suggested is harvesting icebergs, but the cost of implementing such projects is prohibitive. The International Ice Patrol, administered by the US Coast Guard, helps monitor and warn ships about the movement of icebergs, using methods like bombing or painting them with bright colors for easier detection. An intriguing fact is the difference between a nautical mile and a regular mile, with the former being longer due to accounting for the Earth's curvature. Overall, the discussion highlights the need for innovative solutions to address the challenges posed by melting ice and the importance of accurate measurement systems.

    • Measuring Distance and Communication EvolutionThe nautical mile is measured as a great circle distance, while a land mile is a straight-line measurement. Communication systems have evolved to help humans and animals maintain relationships within larger groups.

      The measurement of distance, specifically the nautical mile, is not as straightforward as it seems. A nautical mile is not the same as a land mile, as the former is measured as a great circle distance, following the curve of the Earth, while the latter is a straight-line measurement. The kilometer, on the other hand, was defined based on a specific location and distance from the North Pole to the equator through Paris. Additionally, language and communication have evolved to help humans maintain social relationships within larger groups, and animals, such as vervet monkeys, have developed advanced communication systems beyond simple sounds.

    • Exploring unique discoveries in the digital and physical worldsTry Zigazoo for a kid-safe, human-moderated social media experience and switch to Health Aid Kombucha for a probiotic-rich, flavorful beverage option to enhance your daily life

      There are unique and beneficial discoveries to explore in both the digital and physical worlds. Sarah shared her creative spring break vlog on Zigazoo, a kid-safe social media platform where all members are verified and content is human-moderated. For parents and kids alike, Zigazoo offers a positive and engaging online experience. Meanwhile, Chuck introduced Health Aid Kombucha, a delicious and probiotic-rich tea alternative that's great for gut health and comes in various fruit flavors. Whether you're looking for a new social media platform or a healthier beverage option, these discoveries can make a difference in your daily life. So, give Zigazoo a try during your next break and make Health Aid Kombucha your go-to drink for a healthier, happier you. For more podcast recommendations and interesting discoveries, tune in to iHeartRadio's How Stuff Works.

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