учитель фізики
https://www.youtube.com/watch?v=QdfCf5vUcoo&ab_channel=%D0%90%D0%BB%D0%B5%D0%BA%D1%81%D0%9F%D0%B0%D0%B2%D0%BB%D1%96%D0%BD%D1%87%D1%83%D0%BA