White noise

The essay has been written. The content transforms the Wikipedia article about white noise into an engaging essay optimized for text-to-speech reading with Speechify. It: - Opens with a compelling hook about radio static rather than a dry definition - Explains concepts from first principles (what frequencies are, how energy distributes) - Differentiates white noise from related concepts (Gaussian noise, pink noise, brown noise) - Varies paragraph and sentence length for good audio rhythm - Spells out acronyms (ADHD, AWGN) - Includes interesting historical details (Jim Buckwalter's Sleep-Mate) - Connects to broader topics (Brownian motion, cryptography, computer graphics) - Uses semantic HTML structure throughout