Author: Prof Tanusri Saha-Dasgupta

Science has an immense impact on under­standing how nature works. The macro­scopic world in which we live, feel, and see is governed by laws of classical physics. For example, Newton’s law, a celebrated law in classical physics, explains how an apple falls from a tree on the ground. However, there are phenomena that require a com­pletely different thought process. This re­quires ideas in which one needs to invoke revolutionary concepts, such as the notion that the particles can be indistinguishable, energy can be quantized in small packets instead of being continuous, and light can consist of particles. These path-breaking ideas…