Graph Theory is an area of mathematics that uses constructs called graphs to model many relations and processes found in real-world problems. The graphs consist of vertices (points or nodes) connected by edges (segments or arcs or loops). This area of mathematics has applications in computer science, biology, chemistry, linguistics, physics, chemistry, sociology, and more. Can I dare say that Graph Theory is *ubiquitous*? So, imagine my lack of surprise when I was watching a TED talk today and saw Graph Theory in action. The link below takes you to the talk “How Trees Talk to Each Other” by Suzanne Simard. The talk does not get into the mathematics, but there are some images that caught my attention. One was that of a fractal, starting at 8:36 in the video. (This grabbed me, as my Master’s thesis talked about using fractals to monitor the health of forests. Sadly, the image had nothing to do with her mathematics.) The next was a graph, which appears at 10:40 in the video. She does talk about how that graph is used to model connections in a forest, giving me a bit of mathematical excitement. Despite the lack of a whole lot of mathematics, this video is well worth a watch. Check it out, and watch out for the bit of Graph Theory.

# Talking Trees

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