#half-life

2 articles

Radioactivity: Random Decay, Predictable Half-Life

Why individual radioactive decay is fundamentally random and memoryless, yet a large population halves like clockwork — with the decay law, half-life, decay modes, and dating.

10 min read·Aug 7, 2026

Medicine

Pharmacokinetics: How Drugs Clear the Body

First-order elimination, half-life, and accumulation to steady state — the small pile of exponential arithmetic that decides how often a drug has to be taken and how wide its safety margin is.

10 min read·Jul 16, 2026