Berechne den Schwarzschild-Radius der Erde.
W_\infty = G mM \dfrac{1}{R} = \frac{1}{2}mc^2; \Rightarrow R = \dfrac{2 GM}{c^2} = 8,\!86 \mathrm{mm};W∞ = GmM 1 R = 1 2mc2;⇒ R = 2GM c2 = 8,86mm;
