По олимпиадам / OBF

OBF 2025

PDF организаторовВсе задания
1Eratosthenes and flat Earth *
2Steel bar impact stress *
3Pendulum release for maximum range *
4Polarized light through polarizer *
5Growth of Earth's Crust *
6Three-phase power transmission *
7White light through triangular prism *
8Spool pulled on table *