#aichelburg
- Aichelburg — The surname of the Austrian theoretical physicist Peter C. Aichelburg (b. 1941), famous in mathematical physics and general relativity for developing the Aichelburg-Sexl metric (1971). This unique structural solution to Einstein's field equations describes the gravitational field of a point mass moving at the speed of light, representing a fundamental model in the study of gravitational shockwaves and high-energy particle collisions.