SCIENTIFIC ARTICLES & RESEARCH NOTES
Articles & Explanations
Rigorous, accessible physics articles authored by Traian Anghel exploring the intersection of optics, acoustics, and sensory physiology.
Optics & Vision1,800 words · 8 min read
How Wavelength Becomes Color: The Physics Behind CIE 1931 and Digital Displays
Trace the complete scientific pipeline from electromagnetic spectral power distribution through human cone photoreceptors (L, M, S), the 1931 standard observer, and sRGB gamma companding.
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Acoustics & Musicology1,650 words · 7 min read
Why A4 is 440 Hz: The Physics, History, and Acoustics of Concert Pitch
The historical journey from diapason pitch variations across Baroque cathedrals to the 1939 London conference and the ISO 16:1975 international tuning standard.
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