In the same year, the first steps towards generalizing Schwarzschild's solution to electrically charged objects were taken, which eventually resulted in the Reissner–Nordström solution, now associated with electrically charged black holes.
Samma år togs de första stegen mot att generalisera Schwarzschilds lösning till elektriskt laddade objekt, som så småningom resulterade i Reissner–Nordströms lösning, nu i samband med elektriskt laddade svarta hål.