Meteorite impact and PGEs in Scotland | The Traveling Geologist The northwest coast of Scotland is an incredibly geologically diverse stretch of coastline. In less than 150 kilometers the rocks span over 2.8 billion years of Earth history, from the Archaean Lewisian gneiss to the Tertiary volcanic province on Skye with little missing in between. Such a wide temporal spread means that any particular age of rocks is restricted to a relatively small area. The Stoer Formation is a sedimentologist's dream land. However the highlight of the Stoer Formation is the Stac Fada member. Although initial investigators assumed this to be volcanic in origin it was bizzare in context of the surrounding geology. Recently, my colleagues at the University of St Andrews found that much of this iridium is focused in the rims of this accretionary lapilli.
Intensity Indicators: Terminology and Definitions Energy intensity trends are reported in two categories, total energy and delivered energy, for each of the four end-use sectors (transportation, industrial, residential buildings, and commercial buildings). Select the images below to learn more about these energy intensity trends: Total Energy Delivered Energy Energy efficiency is a vital part of the nation's energy strategy and has been since the first oil crisis in 1973. This system of energy intensity indicators can: The purpose of this site is to provide the public with information on energy intensity indicators that can be used to consistently track changes in U.S. energy intensity over time. This new system of energy intensity indicators provides:
How Products Are Made Careers Interested in starting a career or a career change? Thinking about changing jobs? Are you wondering what qualifications are required for a job you're interested in? Here's information on what you need to find a job for a variety of different career fields, industries and types of job. Whether it's a job you want because it's something you would love to do, or a job where you can make the most money, or both, here's the scoop on what you need to get hired, including education and experience requirements, where to find job listings, job search and interview advice, salary information and more for many different occupations and career fields. Jobs Listed by Job Title and Industry Jobs Listed By Type of Position Types of Jobs That Pay Well How to Get a Job Here's more advice on how to get a job including how to find job listings, the top job sites, how to search and apply for jobs in-person and online, how to ace an interview, and more tips on how to get a new job fast.
Units of Measurement For information on a specific unit, click on the first letter of its name: Commentary and Explanation The International System of Units (SI) The International System of Units Base and derived units; other units included (and some that are not included). Defining the Base Units Current and proposed definitions for the second, meter, kilogram, ampere, mole, kelvin, and candela. SI Derived and SI Compatible Units 22 derived units that are in the SI, and 10 more that aren't. Metric and SI Unit Prefixes From yotta- (septillion) to yocto- (septillionth). Using Numbers and Unit Symbols in Measurements SI rules for numbers (decimal markers, digit grouping, etc.) and the SI rules for handling unit symbols. The Long Road to the SI English Customary Weights and Measures A brief account of a long (but fascinating) history. The Metric System A new idea -- now more than 200 years old. CGS and MKS Units Two contending coherent unit systems. The Metric System in the United States Names of Large Numbers Meter?
Chemical & Engineering News: What's That Stuff? You might ask yourself... What's That Stuff? Ever wondered about what's really in hair coloring, Silly Putty, Cheese Wiz, artificial snow, or self-tanners? Sort: Alphabetically (Text Only) | Most Recent Spanish <p class="noscript"><strong class="error">Warning: </strong>This site will not work properly with JavaScript disabled. <a href="/jshelp.htm">Learn More »</a></p> Contact Us Student Contact Form Teacher Contact Form [Close] Help & FAQs Student Help Teacher Help [Close] Membership Options Student Membership Teacher Membership [Close] My Account My Student Account My Teacher Account [Close] Log On - Log Off Student Log On Teacher Log On Log Off [Close] Lesson Topics Home / Grammar / Topic Preterite vs Imperfect Part II: Quiz #1 A. 1. 2. 3. 4. 5. 6. 7. 8. 9. ¿ carne todas las semanas? 10. 11. 12. 13. 14. 15. 16. 17. 18. ¿ café ayer por la mañana? 19. 20. B. Items of Interest Free Shipping in USA! “Path of success.” Shortcuts Please send comments or report errors to the webmaster. © 1997–2014 Study Languages, LLC.
Convert just about anything to anything else Chemistry Help | Wyzant Resources In our chemistry help section, you’ll find a broad range of topics from very basic chemistry all the way through some more advanced organic chemistry topics. Browse our chemistry topics below, or contact one of our chemistry tutors for private help. Heuristics Before you get into the other topics, learning HOW to learn chemistry is a great place to start, and this section will help. The Periodic Table Almost everyone has heard of the periodic table, but do you know how to read it? history of the periodic table, and explains how elements are divided and grouped in the table. Elements Take a deep dive on every element on the periodic table. Solutions Mixtures and solutions may seem to have a lot in common, but they’re actually very different. States of Matter Matter has a variety of different states, ranging from gases to solids. Compounds What are the different bonds and how do you create a compound? Reactions Let’s learn more about writing simple chemical equations and types of reactions. Gases
Calculations and References | Clean Energy This page describes the calculations used to convert greenhouse gas emission numbers into different types of equivalent units. Go to the equivalency calculator page for more information. A note on global warming potentials (GWPs): Some of the equivalencies in the calculator are reported as CO2 equivalents (CO2E). These are calculated using GWPs from the Intergovernmental Panel on Climate Change’s Fourth Assessment Report. Electricity Reductions (kilowatt-hours) The Greenhouse Gas Equivalencies Calculator uses the Emissions & Generation Resource Integrated Database (eGRID) U.S. annual non-baseload CO2 output emission rate to convert reductions of kilowatt-hours into avoided units of carbon dioxide emissions. Emission Factor 6.8927 × 10-4 metric tons CO2 / kWh (eGRID, U.S. annual non-baseload CO2 output emission rate, year 2010 data) Notes: This calculation does not include any greenhouse gases other than CO2. Sources Gallons of gasoline consumed Calculation Passenger vehicles per year Calculation
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