(Based on a speech delivered at the BCIS Language Awards Ceremony 2023) The Bandaranaike Center for International Studies (BCIS) has been offering language-teaching programmes alongside its ...

Over the weekend, Jews throughout the world are observing Yom Kippur, the Jewish Day of Atonement. Although Yom Kippur serves many roles, one of its primary functions is to encourage people to reflect ...

Introduction Can you imagine a bouncy ball that could bounce back and forth between two walls, infinitely—that is, forever? Wouldn't that be amazing? What if, instead of a ball, light was bouncing ...

A wave propagating through an inhomogeneous medium is usually partially reflected, which is often undesirable from a practical point of view. Although the reflection from a sharp interface can be ...