Historical article record
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View the original site archive ↗Tracing the Origins of Quantum Theory: Quantization
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PhysicsFrom the archive
How Is Laser Light Produced?
The laser was a major invention of the twentieth century, called the “fastest knife,” the “most precise ruler” and the “brightest light”…
PhysicsFrom the archive
Laser-Induced Fluorescence: A Powerful Tool for Flow Visualization
How can fluorescence reveal flow and combustion when a laser illuminates a tiny region? 严浩 introduces the principles of laser-induced fluorescence, velocity measurements, and two-dimensional flow visualization.
PhysicsFrom the archive
Airfoils: A Perfect Synthesis of Classical and Modern Fluid Mechanics
If someone asked me to name an invention as important as the wheel, I would say “the airfoil” without hesitation. In its narrower sense, an airfoil is the cross-sectional shape of an aircraft wing. This design brings mechanics and aesthetics together to make the most of modern aircraft performance…