Thermodynamics
What Is Energy? The Most Important Concept in All of Physics
January 29, 2026 · 10 min read
Thermodynamics Researcher
PhD in Physics — MIT
Dr. Sarah Kim earned her PhD in Physics from MIT, where her doctoral research focused on energy transfer mechanisms at the nanoscale and the application of statistical mechanics to biological systems. Her work sits at the intersection of classical thermodynamics and modern quantum physics. At Physics Fundamentals, she is passionate about connecting the microscopic world of molecules to the macroscopic phenomena students observe every day.
January 29, 2026 · 10 min read
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