सघन द्रव्य भौतिकी (condensed matter physics) के संदर्भ में, एक कमरे के तापमान वाले अतिचालक (room-temperature superconductor) को आम तौर पर ऐसे पदार्थ के रूप में परिभाषित किया जाता है जो किस सीमा तापमान से ऊपर अतिचालकता प्रदर्शित कर सकता है?

The 'Drain of Wealth' theory was propounded by which Indian nationalist leader?

Which event is considered the turning point in Mahatma Gandhi's leadership in the Indian independence movement?

Which African leader is known for his non-violent opposition to colonial rule?