...Astronomy 2B03: Lecture 2: What’s Out There? * Objects in the universe come in a hierarchy of scales and sizes: * Planets * Stars * Galaxies * The universe as a whole * These scales are so different from one step to the next that they are incredibly hard to comprehend all at once – no “everyday” experience to refer them to * If the Earth were a basketball how big would the moon be? Tennis ball * How many Earths would fit into the Sun? ~ 1 million * How many Jupiter’s would fit inside the Sun? 900 * How many Moons would fit inside the Earth? 50 * If we say the distance from here to Toronto (71 km) represents the distance between the Earth and the Sun, how far are we from Pluto? From Hamilton to Mexico, or from Hamilton to Calgary * If we say the distance from here to Toronto represents the distance between the Earth and the Sun, how far is the Earth from the Moon? From here to the edge of campus (Sterling and Forsyth) * If we say the distance from here to Toronto represents the distance between the Earth and the Sun, how big is the Earth? 3 meters * If we say the distance from here to Toronto represents the distance between the Earth and the Sun, how far is the Sun from the next nearest Star? 1/10th the distance from the Sun to Earth Lecture 3: The Earth: * Our starting point and only home * Both land and water * The only planet to have liquid water at its surface * Atmosphere: dense at sea...
Words: 18912 - Pages: 76
...Research Question How does the height of dropping a basketball affect the time it bounces? Aim I have played a lot of basketball in my life, however, never before thought about the physics behind the sport. When I was given the opportunity to plan and prepare my own investigation, I tried to seize the chance as much as possible by combining it with my hobby. I was curious if this experiment would give me new knowledge and improve my skills, or just confirm the information I have already gained during basketball practice. Background information That most balls bounces are something we learn from an early age, but why is that a universal phenomenon, why doesn’t the ball just stay on the ground when dropped? Physics, and especially the field...
Words: 1758 - Pages: 8
...Strobist Lighting 101 (all text by David Hobby, taken from http://strobist.blogspot.com/2006/03/lighting-101.html, version 05/06/07) Intimidated by the idea of off-camera lighting? Don't be. We are pretty much starting from scratch, so no worries. The first posts will be about what kind of gear you will need to do the minimalist strobe thing. When we are done having our way with your wallet (remembering that light gives you far more bangfor-the-buck than does fast glass or the latest digital camera or 300/2.8) we'll move into basic technique. And after that, we'll keep it going with periodical essays and ideas on how to improve (or refresh) your lighting ability. When you've worked your way through the basics of designing your light kit and learning how to use it, make a point to browse some of the examples in the "On Assignment" section. Those will be updated constantly, too. So keep checking back. You will likely have some questions along the way. Sadly, it is not possible for me to take the time to personally answer all of the one-to-one lighting questions that pop up. So try to resist asking them in the comments section. The only people reading this behind you are the people who are, well, behind you. You will find the one-to-one knowledge bank you seek in the Strobist Group on Flickr. There, you can ask away and get the diversity of response that you need. These are the lighting grad students, so to speak. They know this stuff, and are very enthusiastic about sharing...
Words: 16013 - Pages: 65
...g Easier! Making Everythin ™ heory tring T S Learn: • The basic concepts of this controversial theory • How string theory builds on physics concepts • The different viewpoints in the field • String theory’s physical implications Andrew Zimmerman Jones Physics Guide, About.com with Daniel Robbins, PhD in Physics Get More and Do More at Dummies.com® Start with FREE Cheat Sheets Cheat Sheets include • Checklists • Charts • Common Instructions • And Other Good Stuff! To access the Cheat Sheet created specifically for this book, go to www.dummies.com/cheatsheet/stringtheory Get Smart at Dummies.com Dummies.com makes your life easier with 1,000s of answers on everything from removing wallpaper to using the latest version of Windows. Check out our • Videos • Illustrated Articles • Step-by-Step Instructions Plus, each month you can win valuable prizes by entering our Dummies.com sweepstakes. * Want a weekly dose of Dummies? Sign up for Newsletters on • Digital Photography • Microsoft Windows & Office • Personal Finance & Investing • Health & Wellness • Computing, iPods & Cell Phones • eBay • Internet • Food, Home & Garden Find out “HOW” at Dummies.com *Sweepstakes not currently available in all countries; visit Dummies.com for official rules. String Theory FOR DUMmIES ‰ by Andrew Zimmerman Jones with Daniel Robbins, PhD in Physics String Theory For Dummies® Published by Wiley Publishing, Inc. 111 River St. Hoboken, NJ 07030-5774 www...
Words: 133965 - Pages: 536
...The Grand Design ALSO BY STEPHEN HAWKING A Brief History of Time A Briefer History of Time Black Holes and Baby Universes and Other Essays The Illustrated A Brief History of Time The Universe in a Nutshell FOR CHILDREN George’s Secret Key to the Universe (with Lucy Hawking) George’s Cosmic Treasure Hunt (with Lucy Hawking) ALSO BY LEONARD MLODINOW A Briefer History of Time The Drunkard’s Walk: How Randomness Rules Our Lives Euclid’s Window: The Story of Geometry from Parallel Lines to Hyperspace Feynman’s Rainbow: A Search for Beauty in Physics and in Life FOR CHILDREN The Last Dinosaur (with Matt Costello) Titanic Cat (with Matt Costello) The Grand Design The Grand Design The Grand Design The Grand Design Copyright © 2010 by Stephen W. Hawking and Leonard Mlodinow Original art copyright © 2010 by Peter Bollinger All rights reserved. Published in the United States by Bantam Books, an imprint of The Random House Publishing Group, a division of Random House, Inc., New York. Cartoons by Sidney Harris, copyright © Sciencecartoonsplus.com BANTAM BOOKS and the rooster colophon are registered trademarks of Random House, Inc. eISBN: 978-0-553-90707-0 www.bantamdell.com v3.0 The Grand Design The Grand Design The Grand Design The Grand Design E EACH EXIST FOR BUT A SHORT TIME, and in that time explore but a small part of the whole universe. But humans are a curious species. We wonder, we seek answers. Living in this vast world that...
Words: 43567 - Pages: 175
...and yell, "Shotgun!" 12. Remove your keys from your front pocket before receiving a lap dance. It's called respect. Plus, you'll feel it on your junk more. 13. Learning to play the air drums will save your life one day. 14. Give at least as many high fives as you get. 15. Subscribe to "O" magazine. It's full of great tips and tricks for around the house. 16. Have sex in a bathroom stall. 17. If you ever find yourself in a tricky situation, ask yourself, "What would Ted do?" and do the exact opposite. 18. Teacup pigs might be lady-magnets, but they apparently don't digest chocolate. 19. If you ever meet a contortionist, I swear to God don't you ever let her go. I am so serious about this. I gotta sit down or something. Maybe drink some water. 20. Trying to ogle two boobs at the same time is like reading in a car – it'll make you sick. 21. If you're older than 30 and you do get married, accept the fact that throw pillows will become a big part of your life. 22. Magic is cool, despite what you may have heard from everyone you've ever talked to. 23. Never use the word "moist" on a first date....
Words: 5144 - Pages: 21
...Are Too Many People Going to College? By Charles MurrayFrom the Magazine: Monday, September 8, 2008 Filed under: Public Square America’s university system is creating a class-riven nation. There has to be a better way.To ask whether too many people are going to college requires us to think about the importance and nature of a liberal education. “Universities are not intended to teach the knowledge required to fit men for some special mode of gaining their livelihood,” John Stuart Mill told students at the University of St. Andrews in 1867. “Their object is not to make skillful lawyers, or physicians, or engineers, but capable and cultivated human beings.” If this is true (and I agree that it is), why say that too many people are going to college? Surely a mass democracy should encourage as many people as possible to become “capable and cultivated human beings” in Mill’s sense. We should not restrict the availability of a liberal education to a rarefied intellectual elite. More people should be going to college, not fewer.Yes and no. More people should be getting the basics of a liberal education. But for most students, the places to provide those basics are elementary and middle school. E. D. Hirsch Jr. is the indispensable thinker on this topic, beginning with his 1987 bookCultural Literacy: What Every American Needs to Know. Part of his argument involves the importance of a body of core knowledge in fostering reading speed and comprehension. With regard to a liberal education...
Words: 6397 - Pages: 26
...| Walmart | | | | | Danielle S Holley | 11/28/2011 | | Firms choose from different business-level strategies in order to proposer in today’s markets. One of these being the Cost Leadership Strategy, an integrated set of actions taken to produce goods or services with features that are acceptable to customers at the lowest cost, in comparison to their competitors. Firms that chose to use this strategy must sell standardized goods and services which have to also include competitive levels of differentiation to the market’s regular customers. Cost leaders have to examine all support activities to find extra resources in order to cut production costs allowing them to maintain low costs for their customers. In any industry fixed and variable costs can cause companies to go out of business. Cost Leadership Strategy can put a strain on companies because they have to keep developing new technology that can support low cost goods and services (with differentiation) as well as low production costs to satisfy the needs of customers in the market place. Using this strategy effectively can earn firms above-average returns in spite of rivals in the industry. Having the low-cost position in an industry is valuable way to deal with competitors. The cost leader’s strategic position causes competitors to think twice before they compete on the basics of price and technology against the potential outcomes of such competition (Hitt). Walmart is known for its ability...
Words: 5753 - Pages: 24
...Module 3 Waves and the Electromagnetic Spectrum Topic: Waves 1. What is a wave? A wave is vibration that travels and all waves are created by something vibrating. Waves transport energy but do not transport mass. 2. Describe the following terms associated with waves: a. amplitude height of wave b. wavelength length of a wave c. frequency number of waves per second (Hz) d. period how long a wave lasts when it arrives at a fixed point (measured in seconds) 3. What are radio waves? An electromagnetic wave of a frequency used for long distant communication. 4. Explain the difference between a transverse wave and a longitudinal wave, and give examples of each. In a longitudinal wave, the vibration travels in the same direction that wave travels. Examples of longitudinal waves include: Sound, p-waves (earthquakes) In a transverse wave, the vibration direction is perpendicular to direction that wave travels. Examples include: Light/electromagnetic, (radio, microwave, xray, etc.), water waves, swaves (earthquakes). The major difference between longitudinal and transverse waves is their direction. Longitudinal waves move left to right while transverse waves move up and down. 5. Compare and contrast: light waves vs. sound waves Light waves are transverse and sound waves are longitudinal. Light waves can travel through a vacuum but sound waves cannot. Speed of light is nearly 300 million m/s while sound has a speed of about 340 m/s...
Words: 11922 - Pages: 48
...Cost Control Conte nts Pref ace to the New Edition The Cost Manager’s Toolkit – PDA-size Summary 1 GOOD COST MANAGEMENT The Unsung Hero Cheaper and Better Managing and Cutting Costs – Intelligently 2 COST LEADERSHIP A Challenging Base Case Indiv idual Accountability Persistence A Continuous Improv ement Culture Short Timef rames Feedback Loops Strategic Skepticism Top Team: Finance Top Team: Human Resources Role Models Toolkit – Cost Leadership 3 TECHNIQUES AND TACTICS Understanding Cost Dy namics Management Accounts and Metrics Bang f or Buck Slice and Dice Understanding Natural Cost Trends Cash Cost Not P&L Cost Best Practice (and Lev el Play ing Fields) Competitiv e Analy sis Toolkit – Techniques and Tactics 4 PEOPLE Why Is People Cost So Problematic? Hiring Pay ing Technology and Productiv ity Firing Managing the Av erage Perf ormer Minimizing the Core Organization Toolkit – People 5 SUPPLIERS Who Manages Supplier Costs? Understand the Balance of Power Consolidate to Fewer Better Suppliers Negotiate Intelligently Don’t Get Locked In Manage Total Cost of Ownership Get Tough on the Costs of Serv ices Toolkit – Suppliers 6 COST CUTTING CASE STUDY Month 1 Month 2 Month 3 Month 4 7 WIRED AND GLOBAL The Internet Globalization Toolkit – Wired and Global 8 LATERAL THINKING Indirect Cost Generators Let the Customers Do the Work Cost into Rev enue Toolkit – Lateral Thinking ...
Words: 63341 - Pages: 254
...GCSE Physics Revision notes 2014 Contents Static and Current Electricity .............................................................................................................. 2 Properties of Waves ........................................................................................................................... 12 Uses of Waves..................................................................................................................................... 13 Forces, Moments and Pressure......................................................................................................... 14 Energy Transfers................................................................................................................................. 17 Energy Calculations ............................................................................................................................ 20 Radioactivity ........................................................................................................................................ 22 Magnetism and Electromagnetism ................................................................................................... 24 Space .................................................................................................................................................... 27 These notes cover the main areas of this subject. Please check the specific areas you need with your exam board. They are...
Words: 6048 - Pages: 25
...30 May 2010 Pg 2 THE YOUTH RULE! Pg 9 KNOWLEDGE IS POWER Pg 17 NIKE BOUNCES BACK 2. GENERATION NEXT 30 May 2010 MASTERS OF THEIR UNIVERSE: MEET THE GROUP THAT ACCOUNTS FOR MOST OF OUR POPULATION WHETHER YOU LIKE IT OR NOT ... Today’s youth rule! Picture: JEREMY GLYN HOW AND WHY THE STUDY WORKS ● Their annual direct spend, as per the study, is over the R95bn mark ● They are the key household inf luencers — to the tune of more than 60% ● They are the future consumers of all brands “They are mavens who give a good sense of the ‘next big thing’. They provide strong indicators of where the market is going” JASON LEVIN, MD OF HDI YOUTH MARKETEERS W HY should the world care if nine-year-olds prefer Milo cereal to Coco Pops? So what if teens want to watch Trace this year when they were hooked on MTV last year? And if youngsters’ primary device is a cellphone, is that really going to change the world? Although less often than before, we are still confronted by “youth cynics” after the Sunday Times Generation Next study is published every year. Their concern, generally, is that youth are still a relatively marginal market segment, so why do a brand preference study? South Africa, like most developing countries, has a very young population — more of our citizens are 22 — the age limit of the study — or younger than those who are older. So, with a sample set aged between eight and 22, the study tracks the consumer behaviour and...
Words: 13575 - Pages: 55
...Moneyball: The Art of Winning an Unfair Game Michael Lewis For Billy Fitzgerald I can still hear him shouting at me Lately in a wreck of a Californian ship, one of the passengers fastened a belt about him with two hundred pounds of gold in it, with which he was found afterwards at the bottom. Now, as he was sinking-had he the gold? or the gold him? —John Ruskin, Unto This Last Preface I wrote this book because I fell in love with a story. The story concerned a small group of undervalued professional baseball players and executives, many of whom had been rejected as unfit for the big leagues, who had turned themselves into one of the most successful franchises in Major League Baseball. But the idea for the book came well before I had good reason to write it—before I had a story to fall in love with. It began, really, with an innocent question: how did one of the poorest teams in baseball, the Oakland Athletics, win so many games? For more than a decade the people who run professional baseball have argued that the game was ceasing to be an athletic competition and becoming a financial one. The gap between rich and poor in baseball was far greater than in any other professional sport, and widening rapidly. At the opening of the 2002 season, the richest team, the New York Yankees, had a payroll of $126 million while the two poorest teams, the Oakland A's and the Tampa Bay Devil Rays, had payrolls of less than a third of that, about $40 million. A decade before, the highest payroll...
Words: 101165 - Pages: 405
...The Vertical Jump Development Bible I increased my vertical jump by 19 inches- I’m gonna show you how to increase yours too! By: Kelly Baggett Higher-Faster-Sports Copyright 2005 by Higher-Faster-Sports.com - All rights reserved. No part of this work may be reproduced or transmitted in any form or by any means without express written permission of Higher-Faster-Sports. Warning: There is always risk of injury when performing exercise with weight. Before beginning any exercise program, consult with your physician to ensure that you are in proper health. This program is not meant to provide medical advice; you should obtain medical advice from your private healthcare practitioner. No liability is assumed by Higher-Faster-Sports for any of the information contained herein. If you want to fly, you’ve got 3 options: 1. Buy a plane ticket 2. Sprout feathers and wings 3. Improve your vertical jump While flying in a plane is nice and all, it’s a bit expensive and way too temporary. Sprouting feathers and wings ain’t gonna happen! So, unless you’ve got money to burn or you really believe in evolution, you’re stuck with improving your vertical jump. A strong vertical jump is at the core of some of the most beautiful and graceful movements known to man – Kobe Bryant dunking on the fast break, Michelle Kwan hitting a triple axle, and Barishnikov seemingly floating in air during the ballet. But don’t get me wrong, the vertical jump is also a measure of pure raw power that is used...
Words: 37036 - Pages: 149
...Need Assistance? Click "Chat Now" to chat with a Live Operator. Chat Now No Thanks! The Ragamuffin Mystery CHAPTER ONE Off in the Caravan “This is going to be just about the most exciting holiday we’ve ever had!” said Roger, carrying a suitcase and bag down to the front door. “Diana, bring that pile of books, will you, before we forget them?” Diana picked them up and ran down the stairs after Roger. At the front door stood a caravan. Diana stood and gloated over it for about the twentieth time. “Fancy Dad buying a caravan!” she said. “And oh, what a pity he can’t come with us after all!” “Yes - after all our plans!” said Roger. “Still, it’s a jolly good thing Mummy didn’t back out, when she heard Dad had to go off to America - I was awfully afraid she would! My heart went into my boots, I can tell you.” “Same here,” said Diana, stacking the books neatly on a shelf in the caravan. “Have we got our bird-book - we’ll see plenty of birds on our travels, and that’s my holiday task - writing an essay on ‘Birds I have seen’.” “Well, don’t forget to take the field-glasses then,” said Roger. “They’re hanging in the hall. I say - what did you think about Mummy asking Miss Pepper to come with us, now that Daddy can’t manage?” Miss Pepper was a very old friend of their mother’s. The children were fond of her - but Roger felt rather doubtful about having her on a caravan holiday with them. “You see - she’s all right in a house...
Words: 38887 - Pages: 156
