The Quantum Tunneling of Particles through Potential Barriers
A 6.0-eV electron impacts on a barrier with height 11.0 eV. Find the probability of the electron to tunnel through the barrier if the barrier width is (a) 0.80 nm and (b) 0.40 nm.
Unifying the Universe: Reading Assignment 1 (Thursday, January 26 ): Read Preface, and Chapter 1 to page 18 Preface: My aim in this book is to explore the first arena of science which emerged to reveal that the universe is indeed fundamentally orderly and governed by natural laws. Before Newton, it was generally thought that laws which operate in the heavens [outer space] are quite distinct from laws valid in our earthly domain. When different areas of science come together with the weaving of general principles there is a dramatic leap in our understanding of nature. I aim to cover modern answers to the fascinating questions relating to the origin and unity of the universe and its contents. Chapter 1: The Shapes of Nature: Beginnings of Scientific Thought Nature is Natural: Human thought rose to a new level when Greek philosophers, starting around 650 BC, began to look for rational explanations for natural events in the world around us. Greeks looked for reasoned alternatives, rational explanations. They sought to explain nature by drawing from nature, the foundation for eventual understanding based on natural laws. They were the first to launch what we call scientific inquiry. Our word politics comes from the Greek word polis meaning city state. Demos means people and crates means rule. The blind poet Home provided the Greek with language and poetry through the epics of the Illiad and the Odyssey. Greeks striv