As they do, they are grasping the significance of what they believe are the four fundamental forces — gravity, electromagnetic force, and two subnuclear forces designated the “weak force ” and the“ strong force. ”
या चार शक्‍ती म्हणजे: गुरुत्वाकर्षणाची शक्‍ती, विद्युत चुंबकीय शक्‍ती, आणि “वीक फोर्स ” व“ स्ट्राँग फोर्स ” म्हटलेल्या दोन आण्विक शक्‍ती.