Εκλειψεις
Posted on 27th Apr 2025
Ημερολογιο στενων επαφων τριτου τυπου με το εντυπωσιακοτερο αστρονομικο φαινομενο
Αστρολογικοφανή
Einstein Field Equations
Posted on 28th Dec 2024
The Einstein field equations (EFE) may be written in the form: \[ R_{\mu \nu} - {1 \over 2} g_{\mu \nu}\,R + g_{\mu \nu} \Lambda = {8 \pi G \over c^4} T_{\mu \nu}\] where \(R_{\mu \nu}\), is the Ricci curvature tensor, \(g_{\mu \nu}\), is the metric tensor, \(\Lambda\), is the cosmo...