Fungal networks in the ground ferry crucial nutrients to plants. But how do brainless organisms form complex supply chain networks? Also, in this year’s baseball spring training, the new Automated Ball-Strike System is helping settle challenges to home plate pitch calls.<h2><a href="https://www.sciencefriday.com/segments/fungi-creating-complex-supply-chains-spun/?utm_source=wnyc&utm_medium=podcast&utm_campaign=scifri">Scientists Observe Fungi Creating Complex Supply Chains</a></h2>As the leaves start to pop out, it’s natural to look up and admire the trees. But actually, there’s a lot of action happening underneath your feet. Beneath you is a complex network of fungal trade routes carrying essential nutrients to the roots of plants, mined from the soil by fungus. It’s a subterranean supply chain.But how exactly do these complex networks form? How does the fungus decide where to ship which resources, or where to build roads? Basically, how does a brainless thread make decisions?Host Flora Lichtman is joined by Dr. Toby Kiers, an author on a recent study of those networks, and professor of evolutionary biology at Vrije University in Amsterdam. She’s also the executive director of the Society for the Protection of Underground Networks (SPUN).<h2><a href="https://www.sciencefriday.com/segments/automated-ball-strike-system-umpire-baseball/?utm_source=wnyc&utm_medium=podcast&utm_campaign=scifri">A Rookie Robot Umpire Takes The Field</a></h2>Baseball fans are eagerly awaiting opening day. And while spring training is a time for teams to test out new players and strategies, it’s also a time for Major League Baseball to trial new rules and procedures. One of the things that the league has been testing this year is a robotic system to call balls and strikes.The Automated Ball-Strike System, which is based on the same technology used for line judging in tennis, isn’t calling every pitch, but is used to back up a challenge system at the plate. The tech is already in use in Triple-A games, and could make it to the major leagues in the years ahead. Baseball writer Davy Andrews joins Host Ira Flatow to talk about the technology, and how it could subtly change the rules of the game.Transcripts for each segment will be available after the show airs on <a href="ce=wnyc&utm_medium=podcast&utm_campaign=scifri">sciencefriday.com.</a>
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