Semantic Scholar API (api.semanticscholar.org)

Run: 2026-10-06. Queries (title searches): "Reexamination of Barnett's Experiment Based on the Modified Lorentz Force Law"; "Ignored Mechanism for the Longitudinal Recoil Force in Railguns Riemann"; "Connections Between the Riemann and the Lorentz Force Laws"; "Explicit Definitions of Electric and Magnetic Fields in Potentials and Derivation of Maxwell's Equations". All returned HTTP 429 (rate limit). Result: blocked (rate limit, not CAPTCHA). Retry in Chrome next run. Google snippets show Semantic Scholar pages exist for several Su papers.