7 Example Questions votes newest recent 15Spanish Language: What is the difference between estar and ser? 9Spanish Language: What are the main rules of the thumb about accent position in Spanish? 6Theoretical Physics: Does Loop Quantum Gravity imply (measurable) dependence of the speed of light on energy? 4Theoretical Physics: Why does Witt algebra have to be extended to Virasoro algebra with nontrivial central charge upon quantization? 3Theoretical Physics: What is known about the universality classes of [your favorite lattice model]? 2Theoretical Physics: What are some most realistic stringy vacua found to date? 1Theoretical Physics: I heard gravitation can be reformulated as a gauge theory. How precisely does the correspondence work and what are some papers on the subject?