Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...
Engine 557 sits on rails in front of its home shop in Wasilla. The 557 Restoration Company fired up the old steam locomotive Nov. 8, 2025, for the first time since the 1950s. The last steam locomotive ...
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