Science Magazine Podcast
Leaf-based computer chips, and evidence that two early human ancestors coexisted
Nov 28, 2024
Kevin Hatala, an associate professor specializing in paleoanthropology at Chatham University, dives into groundbreaking discoveries about early human ancestors. He discusses fossil footprints from the Turkana Basin, revealing that Homo erectus and Paranthropus boisei coexisted, shedding light on human evolution. Additionally, there’s an intriguing segment on using cellulose from leaves for sustainable electronics, which could revolutionize circuit board production and significantly reduce electronics' carbon footprint.
27:44
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Quick takeaways
- The use of leaf-based materials for electronics could significantly reduce the carbon footprint while promoting a more sustainable circular economy.
- Fossil footprints in Kenya provide compelling evidence that two early human species coexisted, offering insights into their interactions and adaptations.
Deep dives
Innovative Use of Leaves in Electronics
Researchers are exploring the potential of using leaves as a sustainable alternative for circuit boards in electronics, an initiative referred to as 'Leaftronics.' The process involves extracting the skeletal structure of leaves and coating them with bio-derived polymers, making them suitable for electronic applications. Unlike traditional materials, which often require harsh chemicals and are difficult to biodegrade, leaf-based materials offer a renewable option that is both flexible and environmentally friendly. They are aiming for a circular economy, where the materials used can be recycled and reused, potentially powering production facilities through biogas generated from decomposed leaves.
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