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    #ICYMI - Figure Skating Physics, with Olympic Medalist Sasha Cohen

    en-usFebruary 08, 2018

    Podcast Summary

    • The Demands and Passion of Figure SkatingFigure skating requires immense athleticism, core strength, and fearlessness, with skaters facing unique challenges like spinning and landing on thin blades on slippery ice. Their captivating performances showcase grace, strength, and unwavering focus.

      Figure skating is an incredibly demanding Olympic sport that requires a high level of athleticism, core strength, and fearlessness. Figure skaters face unique challenges, such as taking off from and landing on thin blades on slippery ice, spinning multiple times, and dealing with the harshness of the ice surface. Their performances are marked by grace, strength, and unwavering focus, making them some of the most passionate and dedicated athletes. The combination of science, artistry, and athleticism makes figure skating a captivating and unforgettable spectacle.

    • Learning Ice Skating Jumps with Harnesses and CoachesCoaches use harnesses attached to the ceiling to guide and support ice skaters during the learning phase of new jumps, ensuring safe and effective progress.

      In ice skating, as in gymnastics, athletes use harnesses and the guidance of coaches to learn and perfect new jumps, especially when attempting more complex maneuvers. These harnesses are attached to the ceiling via a track, and the coach acts as a counterbalance, providing support and preventing falls. Skaters do not spend all their training time on the harness, but use it primarily during the learning phase. A double toe loop, a common figure skating jump, requires significant time and practice to master, taking approximately a year for an average skater. The harness and coaching support are crucial in helping skaters progress safely and effectively.

    • Perfecting Figure Skating Moves Takes Time and PracticeDedication, time spent training, and natural ability determine how long it takes to master figure skating moves. Focus on perfecting basics on the ice, and new training techniques and equipment can help with more complex jumps.

      Mastering a basic move in figure skating, such as a double toe loop, takes dedication and time, even if some younger skaters may pick it up faster. While off-ice training has become more popular in recent decades, ultimately, the only way to perfect the actual jump is by practicing on the ice. The amount of natural ability, time spent training, and dedication are all factors that determine how long it takes to master various figure skating moves. New training techniques and equipment, like off-ice jump machines, have made more complex jumps, like quads and triple axels, more achievable. So, for someone starting out, focus on perfecting the basics on the ice, and don't be discouraged by the time it takes to progress.

    • Physics of Figure Skating: On and Off IceFigure skating combines off-ice training for rotation speed and on-ice techniques for launching, both involving physics principles of angular momentum conservation, mass distribution, and impulses.

      Figure skating involves both on-ice and off-ice physics. Off the ice, a skater can train core strength, arm positioning, and focus to enhance rotation speed. The physics behind this involve angular momentum conservation and mass distribution. On the ice, a skater must perfect their launch, which requires significant jump height and speed to achieve multiple spins in the air. The physics of launching involve impulses from both the skater's speed and the force applied to the ice. Additionally, a skater gains extra speed by bringing their arms and mass inward during a spin, conserving angular momentum and increasing rotation rate. This concept can be demonstrated with a simple experiment, such as spinning in a swivel chair with arms outstretched and then pulling them in.

    • Maintaining correct body positioning in figure skatingPrecise body positioning and tight limbs enhance spin rate and improve scores. Close proximity of skaters in ice dancing and pair skating increases chances of accidents.

      Figure skating involves precise body positioning and rotation to achieve high scores from judges. Skaters need to keep their arms and legs in tight to enhance their spin rate and maintain the correct axis of rotation. Any deviation from the desired position can result in lower marks. The popularity of figure skating lies in its dramatic elements, the expectation of perfection, and the seemingly effortless execution of physically demanding moves that captivate audiences. Figure skating accidents, including blade collisions, are common, especially in ice dancing and pair skating due to the close proximity of skaters.

    • Figure Skating on Ice: Edge Control and Blade DesignFigure skating on soft ice allows for better edge control and stability, while harder ice offers more slipperiness. Blade design, specifically the rocker, enhances performance by improving friction and enabling faster speeds.

      Figure skating involves dynamic movements on thin, double-edged blades, which require the ability to use both inside and outside edges for stability and maneuverability. The ice temperature plays a role in skating performance, with softer ice allowing for better edge control and harder ice being more slippery. The rocker design of the skate blade allows for enhanced stability and can even slightly warm the ice, improving friction and enabling faster speeds. Figure skaters generally prefer softer ice for better edge control during turns and landings, but harder ice can also offer additional slipperiness. The sweet spot on the blade, which enhances performance, is related to the added slipperiness that comes when pushing outward to make a turn.

    • The condition of the ice impacts figure skating performanceSofter ice reduces friction for speed, while firmer ice is better for turns. The sweet spot on the blade is crucial for spins, and maintaining position is essential for high marks. The new judging system focuses on execution and base values, while traveling during spins negatively impacts performance.

      The condition of the ice plays a significant role in the performance of figure skaters. Softer ice can help reduce friction and improve straight-line speed, while firmer ice is better for turning and maintaining stability. The sweet spot on the blade, located at the ball of the foot, is crucial for contact with the ice during spins. Spins involve making small circles around the body's center, and maintaining that position is essential for high marks. The new judging system in figure skating aims to make the sport more objective by focusing on the execution of elements and their base values. Traveling during spins can occur due to leaning or losing balance, and it negatively impacts the performance and scoring.

    • Understanding the Physics of Advanced Figure Skating MovesCore strength, athleticism, and physics knowledge are crucial for advanced figure skating moves like quintuple jumps. The spin requires velocity, lean or cuts to correct drifts, and the most challenging jumps are the quad Lutz and quad axel. Human capabilities currently can't reach the height and rotation for a quintuple jump.

      Achieving advanced figure skating moves, such as quintuple jumps, requires significant core strength, athleticism, and a deep understanding of physics. The spin itself involves entering with velocity and dealing with slight drifts, which can be corrected with lean or cuts. The most challenging jumps currently are the quad Lutz and quad axel, with the latter being more difficult due to an extra half rotation. To reach the necessary height and rotation for a quintuple jump, a skater would need to jump 11 miles an hour off the ice and stay in the air for a full second, which is currently beyond human capabilities. The discussion also touched on the importance of timing, speed, and vertical force in executing jumps effectively.

    • Transitioning from gymnastics to figure skatingGymnastics background aids figure skating with coordination, strength, and discipline. Daily stretching is crucial for figure skaters to maintain flexibility.

      Figure skating, like gymnastics, requires a strong foundation of coordination, strength, and discipline. Sasha Cohen, a former US champion and Olympic medalist, shares her experience of transitioning from gymnastics to figure skating and how her background helped her develop the necessary skills. When spinning on ice, skaters need to stay centered and minimize both horizontal and vertical drift to avoid getting dizzy. Additionally, stretching is a daily commitment for skaters, with many starting their training with sophisticated routines to improve flexibility.

    • The importance of flexibility and strength in figure skatingFormer figure skater Sasha Cohen emphasized the significance of daily stretching and building strength to maintain flexible positions on ice. Impressive flexibility and seamless jump integration were key to her unique appeal. Personal connection with the audience and their approval were valuable competition advantages.

      Flexibility and strength are crucial components for successful figure skating performances. Sasha Cohen, a former professional figure skater, emphasized the importance of daily stretching and building strength to maintain flexible positions on the ice without external support. Her unique appeal came from her impressive flexibility and the seamless integration of jumps into her choreographed routines. Cohen also highlighted the personal connection and approval from the audience as a valuable aspect of her competitive experience. Figure skaters aim to make their performances look effortless, which requires significant dedication and training. Cohen reflected on her career, sharing that her long-term relationship with the audience and being a fan favorite gave her an advantage during competitions. Ultimately, mastering the art of figure skating requires a combination of flexibility, strength, and the ability to make it look effortless.

    • A figure skater's daily routine involves warming up, edge work, foot coordination drills, and hours of practicing jumps, spins, and choreography.Figure skaters start their day with exercises to warm up the body, followed by edge work and foot coordination drills, and spend hours perfecting jumps, spins, and choreography for competition.

      Figure skating is an art form that requires intense athleticism and dedication. To perform at the highest level, a figure skater's daily routine starts early with warming up the body through exercises like Pilates, foam rolling, and running. Edge work and foot coordination drills follow, leading to several hours of practicing jumps, spins, and choreography. The body needs time to warm up and reach peak performance, which is why most competitions are held at night. However, qualifying rounds can sometimes be held in the morning, which can be challenging for the skater's body. The upcoming Olympics may present a new challenge as most skating events will be held in the morning for prime time television coverage. The discussion also touched upon the importance of quads in men's figure skating.

    • Training for a Quad Jump in Figure Skating: Precision and AthleticismSuccessfully executing a quad jump in figure skating demands extreme precision, athleticism, and a deep understanding of the body and physics involved. Women face unique challenges due to faster rotation speeds, but safety measures and fine-tuned movements help mitigate risks.

      Training and performing a quad jump in figure skating requires extreme precision, athleticism, and awareness of the body and physics involved. For women, the process is particularly challenging due to the faster rotation speed required compared to their bodies' natural abilities. Skaters train with safety measures, such as harnesses, to build up the necessary torque and launch their full athletic power behind it. The slightest misalignment or error in execution can lead to falls and injuries. Skaters are acutely aware of the physics at play, both kinesthetically and scientifically, and must fine-tune their body movements to execute the quad jump successfully.

    • Exploring the excitement and importance of scientific inquiryApproach scientific inquiry with curiosity, collaboration, communication, perseverance, and resilience to make new discoveries and deepen understanding of the world.

      Key takeaway from our discussion about playing Science is that it's important to approach scientific inquiry with curiosity and a willingness to learn. We explored how asking questions and seeking answers can lead to new discoveries and a deeper understanding of the world around us. Whether you're conducting an experiment in a lab or simply observing the natural world, the process of scientific discovery is an exciting and rewarding journey. Another key takeaway is the importance of collaboration and communication in scientific research. By working together and sharing ideas, scientists can build on each other's discoveries and make new breakthroughs. Effective communication is also crucial for sharing findings with the wider scientific community and the public. Lastly, we touched on the importance of perseverance and resilience in the face of challenges and setbacks. Science is not always easy, and there will be times when experiments don't go as planned or results are inconclusive. But with a positive attitude and a determination to keep learning, even the most difficult challenges can be overcome. Overall, the discussion about playing Science highlighted the excitement and importance of scientific inquiry, the value of collaboration and communication, and the importance of perseverance and resilience. We hope you've enjoyed this episode and look forward to exploring more scientific topics with you soon.

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