Short Wave

Chloee Weiner, a producer for the podcast, dives into the fascinating world of umami, the fifth taste, first identified by Japanese chemist Dr. Kikunai Ikeda. She discusses its slow rise to recognition, alongside the historical embrace and backlash of MSG in American cuisine. Chloee shares personal experiences with umami-rich dishes and explores how cultural biases have shaped perceptions of flavors. The conversation emphasizes the importance of understanding diverse culinary perspectives in embracing umami and its complexities.

Embark on a tantalizing journey into the world of sour flavors! Discover the science behind the taste of tartness and its evolutionary significance. Enjoy lively taste tests featuring everything from vinegar to lemons, showcasing genuine reactions and humor. Uncover the biological responses to sourness and how different species, including fish, experience these bold flavors. This exploration reveals the fascinating connection between our taste buds and survival, transforming how we appreciate the tangy wonders of our food.

Sydney Lupkin, NPR's pharmaceuticals correspondent, dives into the world of accelerated drug approvals and the promises drugmakers must keep. She discusses the urgent history behind this FDA process, particularly during the AIDS crisis. Lupkin reveals concerning stories, including tragic outcomes linked to insufficiently validated drugs. The conversation sheds light on the challenges of ensuring ongoing accountability and the dire need for thorough follow-up studies to protect patient safety and trust in the pharmaceutical system.

Nate Rott, NPR's Environmental Correspondent, discusses the severe ecological impacts of the war in Ukraine. He highlights shocking revelations such as chemical leaks poisoning water supplies and military activities disrupting marine life. The conversation also covers the wider implications for biodiversity, with war causing explosions that hinder bird migrations. Rott emphasizes the urgent need for restoration efforts and international attention to the environmental crises exacerbated by the conflict, affecting not just Ukraine but regions beyond its borders.

Rebecca Hersher, an NPR science reporter with a focus on climate change, joins host Emily Kwong to dive into the intricacies of measuring greenhouse gas emissions. They explore the challenges of tracking emissions from personal choices like driving and eating to larger sources such as factories and cargo ships. The discussion highlights innovative techniques for accurate measurements, the complexities of individual carbon footprints, and the fairness issues surrounding multinational corporate emissions. It’s a fascinating look at accountability in a warming world.

The 18th century was a thrilling time for astronomy as expeditions raced to measure Venus during its transit across the sun. Astronomers faced daunting challenges, employing mathematical principles to unlock cosmic mysteries. Concepts like parallax became crucial in determining distances, a revolutionary idea proposed by Edmund Halley. This quest not only advanced our understanding of the solar system but also laid the groundwork for modern astronomical techniques. Fast forward to today, and the Gaia mission is further illuminating cosmic history, showcasing scientists as cosmic archaeologists.

Clarice Phelps, a trailblazing nuclear chemist at Oak Ridge National Laboratory, shares her remarkable journey from aspiring astronaut to a key player in the discovery of Tennessine, a super-heavy element. She reflects on the challenges and excitement of working with radioactive materials and the significance of heavy elements in unlocking cosmic mysteries. Clarice also discusses the joy of her contribution to the periodic table and her passion for inspiring the next generation of scientists, particularly young girls.

The James Webb Space Telescope reveals breathtaking cosmic images, capturing the birth of stars and galaxies colliding. The hosts dive into its amazing capability to explore the universe through infrared imaging. They discuss the significance of these photos for understanding astrophysical processes, like star formation. The conversation also highlights the telescope’s journey and the thrill of uncovering hidden cosmic phenomena. Listeners are left with excitement for future discoveries that await in the cosmos!

NASA recently unveiled incredible images from the James Webb Space Telescope, sparking excitement about space. The discussion turns to advocating for inclusive space travel, highlighting the inspiring story of a deaf NASA employee who achieved a zero-gravity flight. Organizations like Astro Access play a crucial role in making space travel accessible, pushing for thoughtful design in spacecraft for disabled individuals. The episode emphasizes how accessible space travel not only benefits many but also drives innovative solutions on Earth.

In this intriguing discussion, Scott Williams, President of the Maritime Archaeological Society and an expert in Pacific Northwest history, shares the thrilling tale of the Beeswax Wreck. He reveals how centuries-old treasures and pirate legends have captivated treasure hunters. Learn about the discovery of shipwreck timbers and the unusual cargo of beeswax and Chinese porcelain. Scott elaborates on the daring efforts of volunteer archaeologists and how geological changes led to new opportunities for uncovering lost maritime secrets.