The inauguration of Africa’s largest hydroelectric dam has us looking at how we decide when, where, and even whether to build dams.But humans aren’t the only ones building dams – Loren Taylor of the Beaver Institute joins us to talk all about nature’s hydroengineers and the wide-spread benefits beavers (and their dams!) have on ecosystems. Also on the program, how close are we to clean energy from space, the science behind holding your breath for a really, really, really, REALLY long time, and how natural sounds can be turned into musical instruments. All that, plus more unexpected elements.Presenter: Alex Lathbridge with Andrada Fiscutean and Katie Silver
Producers: Margaret Sessa-Hawkins, Alice Lipscombe-Southwell and Robbie Wojciechowski.

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