How Quantum Suicide Works" A man sits down before a gun, which is pointed at his head. This is no ordinary gun; it's rigged to a machine that measures the spin of a quantum particle. Each time the trigger is pulled, the spin of the quantum particle -- or quark -- is measured. Depending on the measurement, the gun will either fire, or it won't. Nervously, the man takes a breath and pulls the trigger. Go back in time to the beginning of the experiment. But, wait. This thought experiment is called quantum suicide.
Henry Greenside's Duke Physics Challenges Duke Physics Challenges The following Physics Challenges are for Duke undergraduates and others to enjoy. The motivation for these problems comes from Mark Twain's famous quip that "I have never let my schooling interfere with my education." and similarly I think physics is too much fun to restrict just to classrooms, labs, and homework assignments. If you would like to propose a solution to a Challenge, talk about one of the Challenges, or get a hint, please send me e-mail at hsg@phy.duke.edu or drop by my office in the Physics building, Room 097. References and links to other collections of physics problems and challenges can be found here. Challenge 1 Heating of Two Identical Balls You are given two identical steel balls of radius 5 cm. Challenge 2 Let Go or Hang On? A painter is high up on a ladder, painting a house, when unfortunately the ladder starts to fall over from the vertical. Challenge 3 How to knock a bottle over with a sandbag and drinking straw. Challenge 15 Galactic Pinball
50 (More) Life Secrets and Tips Investigate what is known about deathWhat do you know about death? You certainly have beliefs around it, but what do you know about the science of death, or of those who have died and been brought back to life? Death is not as big of a mystery as it is made out to be. Do your research before you fear or misconstrue this most universal human experience.Notice the small, beautiful thingsAs cliche as this sounds, there is so much beauty in the world yet we rarely appreciate it. Take 5 minutes, stop doing everything and sit down. Then clear your mind of your inner dialogue and focus intently on something in the space immediately in front of you. Find the supplements suitable for your lifestyleOur diets and habits are nothing like those which are bodies were built for. Wouldn’t it be awesome if you could boldly display 50 life secrets and tips on your wall to serve as a beautiful, daily reminder of how to live a Higher Existence?
Chapter 2 2.1. The scientific method The scientific method has five major components: 1. The last four of these components (three of them by Englishmen!) 2.2. In order to understand quantum physics, we must first understand classical physics so that we can see the differences between them. There are two fundamental assumptions in classical physics. The second fundamental assumption of classical physics is that both the position and velocity of an object can be measured with no limits on their precision except for those of the measuring instruments. Isaac Newton was the first important scientist both to do fundamental experiments and to devise comprehensive mathematical theories to explain them. His three laws of motion can be written as follows: 1. In order to use these laws, the properties of the forces acting on a body must be known. Another example is the gravitational force acting between the earth and my body. 2.3. The second law of thermodynamics can be stated in several ways. 2.4. 2.5. v=lf
Personal and Historical Perspectives of Hans Bethe Controlled Demolition, Inc. | Donna Williams: Left and Right Brain Dominance I enjoyed this website (below) so wanted to pass it on. Its all about right versus left brain dominance... basically we have two sides of the brain and they do different jobs. Almost all of us use both sides, but some of us will be more dominant in one than the other and some of us will have more integration between the two than other people will. Till I was nine I struggled to understand language with meaning AT ALL and my receptive processing for meaning was about 10%, the effect was I was tested for deafness and also found unable to understand written words for meaning. Even once I got 50% meaning from words I still couldn't follow instructions because 50% of it went unprocessed for meaning and the rest was tumbled, like the sequencing didn't hold. I'm the kind of person who learns through doing, through physically having contact with a sequence or touching the objects used to symbolise parts of a story or explanation. I did the test in the site below.
Table of contents (With last update date) Cover Foreword (August 13, 2009) Part 1. Quantum theory and consciousness Preface to part 1 (April 12, 2000) Chapter 1. 1.1. 1.6. 1.7. Chapter 2. 2.1. 2.2. 2.3. 2.4. 2.5. 2.6. Chapter 3. 3.1. 3.2. 3.3. 3.4. Chapter 4. 4.1. 4.2. 4.3. 4.4. Chapter 5. 5.1. 5.2. 5.3. 5.4. 5.5. 5.6. 5.7. 5.8. 5.9. 5.10. 5.11. 5.12. 5.13. 5.14. 5.15. 5.16. Chapter 6. 6.1. 6.2. 6.3. 6.4. 6.5. 6.6. 6.7. 6.8. 6.9. 6.10. 6.12. Part 2. Preface to part 2 (October 17, 2010) Chapter 7. 7.1. 7.2. 7.3. 7.4. 7.5. 7.6. 7.7. 7.9. 7.10. Chapter 8. 8.1. 8.2. Chapter 9. 9.1. 9.2. 9.3. 9.4. 9.6. Chapter 10. 10.1. 10.2. 10.3. 10.4. Chapter 11. 11.1. 11.2. 11.3. 11.4. 11.5. 11.6. 11.7.The victim/victimizer polar pair 11.8. 11.9. 11.10. Chapter 12. 12.1. 12.2. 12.3. 12.5. 12.6. 12.7. Chapter 13. 13.1. 13.2. 13.3. 13.4. 13.5. 13.6. 13.7. 13.8. 13.9. 13.10. 13.11. 13.12. 13.13. Chapter 14. 14.1. 14.2. 14.3. 14.4. 14.5. 14.6. 14.7. 14.8. Chapter 15. Chapter 16. 16.3. 16.4. 16.5. Part 3. Chapter 17. 17.1. 17.2.
Science in the News 2012 March 12 - The Scale of the Universe Interactive Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2012 March 12 The Scale of the Universe - Interactive Flash Animation Credit & Copyright: Cary & Michael Huang Explanation: What does the universe look like on small scales? Tomorrow's picture: dust before galaxies Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)NASA Official: Phillip Newman Specific rights apply.NASA Web Privacy Policy and Important NoticesA service of:ASD at NASA / GSFC& Michigan Tech.
Preface to Part 1 Preface to part 1. Part 1 consists of notes on the philosophical and scientific underpinnings of this course in consciousness. We establish the context of our discussion within the three major types of metaphysical philosophy, ask the questions that are naturally raised when one begins a study of conscious mind, summarize the scientific data that must be taken into account in any attempt to understand the phenomena of consciousness, and present a simple, understandable description of the philosophical and quantum theoretical basis for the need to include consciousness in our description of the material world. This page last updated April 12, 2000. Home
Physics Formulary: Table of Contents Last change: December 16, 2009 This document is a LaTeX file of 108 pages which contains a lot of equations in physics. It is written at advanced undergraduate/postgraduate level. It is intended to be a short reference for anyone who works with physics and often needs to look up equations. A list of recent additions and improvements is available. Download options physics.tex: an English LaTeX file (Approximately 310kb). physics.zip: a zipped English LaTeX file (Approximately 100kb). Equations in physics - Contents The table of contents from "Equations in Physics" is shown below. Physical Constants 1 1.