Minerals in Your Home Activity Book Minerals in Your Home Activity Book
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(WHO) Report on Microplastics in Drinking Water
Microplastics in drinking-water Microplastics in drinking-water ISBN 978-92-4-151619-8 © World Health Organization 2019 Some rights reserved. This work is available under the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 IGO licence (CC BY-NC-SA 3.0 IGO; https://creativecommons.org/licenses/by-nc-sa/3.0/igo). Under the terms of this licence, you may copy, redistribute and adapt the work for non-commercial purposes, provided the work is appropriately cited, as indicated below. In any use of this work, there should be no suggestion that WHO endorses any specific organization, products or services. The use of the WHO logo is not permitted. If you adapt the work, then you must license your work under the same or equivalent Creative Commons licence. If you create a translation of this work, you should add the following disclaimer along with the suggested citation: “This translation was not created by the World Health Organization (WHO). WHO is not responsible for the content or accuracy of this translation. The original English edition shall be the binding and authentic edition”. Any mediation relating to disputes arising under the licence shall be conducted in accordance with the mediation rules of the World Intellectual Property Organization. Suggested citation. Microplastics in drinking-water. Geneva: World Health Organization; 2019. Licence: CC BY-NC-SA 3.0 IGO. Cataloguing-in-Publication (CIP) data. CIP data are available at http://apps.who.int/iris. Sales, rights and licensing. To purchase WHO publications, see http://apps.who.int/bookorders. To submit requests for commercial use and queries on rights and licensing, see http://www.who.int/about/licensing. -
Natural Materials These Are Materials That Are ‘Naturally’ Found Around Us
Natural Materials These are materials that are ‘naturally’ found around us. We may have to dig them out of the ground, grow them, or take them from living things. Wood It is used for burning, building houses, benches, fences and lots of other things. It isn’t chemically processed so it is natural. Wood comes from stems and roots of trees and other woody plants. Cotton Cotton is a soft, fluffy material that grows around the seed of the cotton plant. There are no chemical processes used to make cotton so it is a natural material. The cotton is spun into yarn to make a soft breathable fabric. Cotton is used to make clothes and furnishings. Gold Gold is a metal found as nuggets in rocks. It is not chemically processed so it is a natural material. Gold is melted down to make jewellery, gold teeth and used in industry. Gold is also used for investment. It is kept in bars which are worth lots of money. Iron Iron is a metal. There is lots and lots of iron on earth. It is found in the earth’s crust and core. It is not chemically processed therefore it is a natural material. It is used to make gates, buildings, tools, fireplaces, piping and many more. Leather Leather is a material created by the tanning of animal hide and skins. Usually from cattle. It is not chemically processed therefore it is a natural material. It is used for shoes, jackets, other clothing, upholstery and also used in industry. Sand Sand is made from ground up rock and mineral particles. -
Sustainable Acoustic Materials
sustainability Editorial Sustainable Acoustic Materials Jorge P. Arenas 1,* and Kimihiro Sakagami 2 1 Institute of Acoustics, University Austral of Chile, PO Box 567, Valdivia 5090000, Chile 2 Environmental Acoustics Laboratory, Department of Architecture, Graduate School of Engineering, Kobe University, Kobe 657-8501, Japan; [email protected] * Correspondence: [email protected]; Tel.: +56-632-221012 Received: 10 August 2020; Accepted: 11 August 2020; Published: 13 August 2020 Abstract: Technological advances in materials science, manufacturing processes, chemistry and nanoscience have led to enormous developments in innovatively engineered materials over recent decades. Among them, sustainable acoustic materials have helped to improve acoustical comfort in built environments, and their use is rapidly growing in the architecture, automotive, aerospace and construction industries. These materials are manufactured through a responsible interaction with the environment in order to avoid a depletion or degradation of the natural resources, and to allow for long-term environmental quality. This Special Issue reports on some research studies on membrane absorbers and fibrous materials of natural origin that can be sustainable alternatives to traditional acoustic materials. Keywords: sustainable materials; sound-absorption; natural fibers; acoustic materials; recycled and recyclable materials; membrane absorbers; nanofibers 1. Introduction Although the term is complex, and several definitions of ‘sustainability’ can be found in the literature, the report presented by the World Commission on Environment and Development to the United Nations General Assembly in 1987 stated that the use of resources and the development of technologies should “meet the needs of the present without compromising the ability of future generations to meet their own needs” [1]. -
What Characteristics Define Ecological Building Materials
Proceedings of the 7th IASME / WSEAS International Conference on HEAT TRANSFER, THERMAL ENGINEERING and ENVIRONMENT (HTE '09) What Characteristics Define Ecological Building Materials SMARANDA BICA, LILIANA ROŞIU, RADU RADOSLAV Department of Architecture “Politehnica” University of Timişoara Traian Lalescu str. 2A, 300223 Timişoara ROMANIA [email protected] [email protected] [email protected] http://www.upt.ro Abstract: - The impact of building activities on the environment is tremendous. It can be analyzed considering different topics: insulation, use of unconventional energy sources, solar devices, glass houses, photovoltaic systems etc. The paper focuses on the complex problem of healthy, ecological materials, analyzing what makes a building material ecological and what criteria should these meet. Some new ideas and technologies for the use of one of the oldest natural building materials, earth, are presented. Key-Words: Ecology, Building, Materials, Health, Energy, Environment 1 Introduction Ecology is nowadays an every day topic. The building 2 What are healthy materials? sector is directly targeted, being, from the ecological The building materials should be healthy for the point of view, one of the most damaging for the inhabitants/users. That means they should be: environment. The variety of new materials is - Without pollutants and toxic components tremendous, and so is the variety of new ideas. But what - Not causing unpleasant noises are the characteristics an ecological building material - Secure as radioactivity -
40 Common Minerals and Their Uses
40 Common Minerals and Their Uses Aluminum Beryllium The most abundant metal element in Earth’s Used in the nuclear industry and to crust. Aluminum originates as an oxide called make light, very strong alloys used in the alumina. Bauxite ore is the main source aircraft industry. Beryllium salts are used of aluminum and must be imported from in fluorescent lamps, in X-ray tubes and as Jamaica, Guinea, Brazil, Guyana, etc. Used a deoxidizer in bronze metallurgy. Beryl is in transportation (automobiles), packaging, the gem stones emerald and aquamarine. It building/construction, electrical, machinery is used in computers, telecommunication and other uses. The U.S. was 100 percent products, aerospace and defense import reliant for its aluminum in 2012. applications, appliances and automotive and consumer electronics. Also used in medical Antimony equipment. The U.S. was 10 percent import A native element; antimony metal is reliant in 2012. extracted from stibnite ore and other minerals. Used as a hardening alloy for Chromite lead, especially storage batteries and cable The U.S. consumes about 6 percent of world sheaths; also used in bearing metal, type chromite ore production in various forms metal, solder, collapsible tubes and foil, sheet of imported materials, such as chromite ore, and pipes and semiconductor technology. chromite chemicals, chromium ferroalloys, Antimony is used as a flame retardant, in chromium metal and stainless steel. Used fireworks, and in antimony salts are used in as an alloy and in stainless and heat resisting the rubber, chemical and textile industries, steel products. Used in chemical and as well as medicine and glassmaking. -
C#13 Modern & Contemporary Art Magazine 2013
2013 C#13 Modern & Contemporary Art Magazine C#13 O $PWFSJNBHF"MGSFEP+BBS 7FOF[JB 7FOF[JB EFUBJM Acknowledgements Contributors Project Managers Misha Michael Regina Lazarenko Editors Amy Bower Natasha Cheung Shmoyel Siddiqui Valerie Genty Yvonne Kook Weskott Designers Carrie Engerrand Kali McMillan Shahrzad Ghorban Zoie Yung Illustrator Zoie Yung C# 13 Advisory Board Alexandra Schoolman Cassie Edlefsen Lasch Diane Vivona Emily Labarge John Slyce Michele Robecchi Rachel Farquharson Christie's Education Staff Advisory Board John Slyce Kiri Cragin Thea Philips Freelance C#13 App Developer Pietro Romanelli JJ INDEX I Editor’s Note i British Art 29 Acknowledgements ii Kali McMillan Index iii Index iv Venice C#13 Emerging Artists 58 Robert Mapplethorpe's Au Debut (works form 1970 to 1979) Artist feature on Stephanie Roland at Xavier Hufkens Gallery Artist feature on De Monseignat The Fondation Beyeler Review Artist feature on Ron Muek LITE Art Fair Basel Review Beirut Art Center Review HK Art Basel review Interview with Vito Acconci More than Ink and Brush Interview with Pak Sheun Chuen Selling Out to Big Oil? Steve McQueen's Retrospective at Schaulager, Basel The Frozen Beginnings of Art Contemporary Arts as Alternative Culture Interview with Lee Kit (in traditional Chinese) A Failure to Communicate Are You Alright? Exhibition Review A Failure to Communicate Notes on Oreet Ashrey Keith Haring at Musee D’Art -
Chapter 2 the Solid Materials of the Earth's Surface
CHAPTER 2 THE SOLID MATERIALS OF THE EARTH’S SURFACE 1. INTRODUCTION 1.1 To a great extent in this course, we will be dealing with processes that act on the solid materials at and near the Earth’s surface. This chapter might better be called “the ground beneath your feet”. This is the place to deal with the nature of the Earth’s surface materials, which in later sections of the chapter I will be calling regolith, sediment, and soil. 1.2 I purposely did not specify any previous knowledge of geology as a prerequisite for this course, so it is important, here in the first part of this chapter, for me to provide you with some background on Earth materials. 1.3 We will be dealing almost exclusively with the Earth’s continental surfaces. There are profound geological differences between the continents and the ocean basins, in terms of origin, age, history, and composition. Here I’ll present, very briefly, some basic things about geology. (For more depth on such matters you would need to take a course like “The Earth: What It Is, How It Works”, given in the Harvard Extension program in the fall semester of 2005– 2006 and likely to be offered again in the not-too-distant future.) 1.4 In a gross sense, the Earth is a layered body (Figure 2-1). To a first approximation, it consists of concentric shells: the core, the mantle, and the crust. Figure 2-1: Schematic cross section through the Earth. 73 The core: The core consists mostly of iron, alloyed with a small percentage of certain other chemical elements. -
Minerals for Livestock
Station BulIetn 503 October 1951 Minerals for Livestock J. R. Haag Agrkultural Experiment Station Oregon State College Corvallis Foreword Oregon livestock producers are aware of the need for additional information on the use of mineral sup- plements.These materials frequently are purchased when not needed with the particular rations that are being used.The intelligent use of minerals pays divi- dends.Over-use may be harmful. This bulletin has been revised to give livestock pro- ducers and feed dealers the latest available information that will assist them in selecting and feeding only such materials as may be needed to supplement the natural supply already available in their feedstuffs. Although noteworthy progress is being made we believe that research must be intensified in Oregon to provide more complete information on the adequacy of minerals in feed produced in the various areas of the State.Evidence being accumulated by our research staff indicates that deficiencies peculiar to certain areas are causing serious losses among livestock. Dean and Director Minerals for Livestock By J. R. HAAG, Chemist (Animal Nutrition) Oregon State College animals require an abundance of palatable feedstuffs as a FARMsource of energy, fats, proteins, minerals, and vitamins.These feedstuffs must be suitable for the kind of livestock maintained and, in addition, must be available at a cost that will permit profitable livestock production. The mineral salts constitute only one of the groups of nutrients that play important parts in animal nutrition.Some mineral ele- ments, like calcium and phosphorus, are needed in large amounts, while others, like iodine, are required only invery minute traces. -
13. Nutrient Minerals in Drinking Water: Implications for the Nutrition
13. NUTRIENT MINERALS IN DRINKING WATER: IMPLICATIONS FOR THE NUTRITION OF INFANTS AND YOUNG CHILDREN Erika Sievers Institute of Public Health North Rhine Westphalia Munster, Germany ______________________________________________________________________________ I. INTRODUCTION The WHO Global Strategy on Infant and Young Child Feeding emphasizes the importance of infant feeding and promotes exclusive breastfeeding in the first six months of life. In infants who cannot be breast-fed or should not receive breast milk, substitutes are required. These should be a formula that complies with the appropriate Codex Alimentarius Standards or, alternatively, a home-prepared formula with micronutrient supplements (1). Drinking water is indispensable for the reconstitution of powdered infant formulae and needed for the preparation of other breast-milk substitutes. As a result of the long-term intake of a considerable volume in relation to body weight, the concentrations of nutrient minerals in drinking water may contribute significantly to the total trace element and mineral intake of infants and young children. This is especially applicable to formula-fed infants during the first months of life, who may be the most vulnerable group affected by excessive concentrations of nutrients or contaminants in drinking water. Defining essential requirements of the composition of infant formulae, the importance of the quality of the water used for their reconstitution has been acknowledged by the Scientific Committee on Food, SCF, of the European Commission (2). Although it was noted that the mineral content of water may vary widely depending upon its source, the optimal composition remained undefined. Recommendations for the composition of infant formulae refer to total nutrient content as prepared ready for consumption according to manufacturer’s instructions. -
Thermal Stability, Fire Performance, and Mechanical Properties of Natural Fibre Fabric-Reinforced Polymer Composites with Different Fire Retardants
polymers Article Thermal Stability, Fire Performance, and Mechanical Properties of Natural Fibre Fabric-Reinforced Polymer Composites with Different Fire Retardants Erik Valentine Bachtiar 1, Katarzyna Kurkowiak 2, Libo Yan 1,2,* , Bohumil Kasal 1,2 and Torsten Kolb 1 1 Centre for Light and Environmentally-Friendly Structures, Fraunhofer Wilhelm-Klauditz-Institut WKI, Bienroder Weg 54E, Braunschweig 38108, Germany; [email protected] (E.V.B.); [email protected] (B.K.); [email protected] (T.K.) 2 Department of Organic and Wood-Based Construction Materials, Technical University of Braunschweig, Hopfengarten 20, 38102 Braunschweig, Germany; [email protected] * Correspondence: [email protected] or [email protected] Received: 22 February 2019; Accepted: 10 April 2019; Published: 16 April 2019 Abstract: In this study, ammonium polyphosphate (APP) and aluminum hydroxide (ALH) with different mass contents were used as fire retardants (FRs) on plant-based natural flax fabric-reinforced polymer (FFRP) composites. Thermogravimetric analysis (TGA), limited oxygen index (LOI), and the Underwriters Laboratories (UL)-94 horizontal and vertical tests were carried out for evaluating the effectiveness of these FR treatments. Flat-coupon tensile test was performed to evaluate the effects of FR treatment on the mechanical properties of the FFRP composites. For both fire retardants, the results showed that the temperature of the thermal decomposition and the LOI values of the composites increased as the FR content increases. Under the UL-94 vertical test, the FFRP composites with 20% and 30% APP (i.e., by mass content of epoxy polymer matrix) were self-extinguished within 30 and 10 s following the removal of the flame without any burning drops, respectively. -
Hemp 101 for Construction a Sustainable Finishing Material HELLO
Hemp 101 for Construction A Sustainable Finishing Material HELLO, Welcome to Hemp 101 for Construction: An introduction to one of the oldest and "newest" building materials on earth. For professionals in construction who are new to hemp... This is not a technical guide, it's an overview of a high performance, versatile, and resilient natural material that's going to flood the market in the coming years. We'll take a short look back at hemp's history, dive into technical and functional uses, then look forward to how it can help us collectively move towards a more sustainable earth. Through the lens of your professions, you can view this material from many perspectives, recognize its limitations and potential, as well as evaluate both short term benefits and long term returns. I created this guide because the reemergence of hemp is recent, and so naturally, many people have never heard of the plant, or think hemp is Marijuana. Education on the facts and science is our path to breaking the stigma, and to adding one of the strongest fibers on earth to our toolbox. I invite you to explore it, and consider it on your next project. Hebah Saddique, PMP Founder, Green Takeover October 2020 1 GREEN TAKEOVER Born to bridge the worlds of climate action and industrial hemp, Green Takeover symbolizes the union of these two movements. Our mission is to inspire action using hemp as a catalyst for a green economy. Hemp fits directly into conversations of a circular economy, regenerative design thinking and materials for a closed loop. -
Mineral Materials from BLM-Administered Federal Lands
How to Obtain Mineral Materials From BLM-Administered Federal Lands Including Stone, Sand and Gravel, Clay, and Other Materials Introduction The Department of the Interior‘s Bureau of Land Man- agement (BLM) is a multiple-use land management agency responsible for administering 262 million acres of public land located primarily in the western United States, including Alaska. The BLM manages many resource programs, such as minerals, forestry, wilderness, recreation, fisheries and wildlife, wild horses and burros, archaeology, and range- land. This brochure con- tains information about the mineral materials program. Mineral materi- als include common vari- eties of sand, stone, gravel, pumice, pumicite, clay, rock, and petrified Concrete and asphalt aggregate (crushed stone) used for airport wood. The major Federal runways, highways, bridges, and high-rise buildings. law governing mineral materials is the Materials Act of 1947 (July 31, 1947), as amended (30 U.S. Code 601 et seq.). This law authorizes the BLM to sell mineral materials at fair market value and to grant free-use permits for mineral materials to Government agencies. It also allows the BLM to issue free-use permits for a limited amount of material to nonprofit organizations. How Are Mineral Materials Important to Our Society? Mineral materials are among our most basic natural resources. These materials are in everyday construction, agriculture, and decorative applications (Table 1). The United States uses about 2 billion tons of crushed stone, dimension stone, and sand and gravel every year. Our highways, bridges, power plants, dams, high-rise buildings, railroad beds, and airport runways, along with their foundations and sidewalks, all use mineral materials of one type or another.