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Youth Revolution is the inspirational story of how a sixteen-year-old high-school student from Johannesburg, Kiara Nirghin, overcame huge health obstacles to win the grand prize at the 2016 International Google Science Fair for her unique and innovative solution to worldwide drought. Having experienced bacterial meningitis, undiagnosed bilharzia and severe weight loss, Kiara was forced to postpone her school career for hospitalisation, with a real chance of losing her hearing, her sight and the use of her limbs.
Youth Revolution not only covers her journey from the hospital bed to the stage as the winner of the science award, but also looks at issues surrounding stagnant youth innovation, while considering the dangers of lacking diversity in STEM (science, technology, engineering and maths). It also includes contributions from prominent women in science and education, among them Malala Yousafzai, VP of Education and University Programs for Google and the recipient of the L’Oréal-UNESCO Award for Women in Science.
Youth Revolution is a deeply human and truly inspirational real-life story that will enthral teenagers and adults alike, and proves that even ‘ordinary’ teenagers can do extraordinary things.
Ons weet dat die maan iets met die getye te doen het, maar het jy geweet dat jy met volmaan altyd dieselfde kant van die maan sien? Of dat weerligstrale vol vernietigende elektrisiteit is, maar dat ’n elektriese paling ’n lading van tot 600 volt kan vrystel?
Hierdie feite is deel van ’n magdom kennis oor die natuur, fisiese wetenskap en die ruimte wat die RSG-program Hoe verklaar jy dit? reeds jare lank beantwoord. Hierdie publikasie bevat ’n keur uit die honderde vrae van nuuskierige luisteraars wat deur kundiges verduidelik is om die wêreld minder vreemd te maak, want nie alle kennis van die wêreld om ons is voor die hand liggend nie. Daar is honderde verskynsels in die natuur en ruimte wat vra om verklaar te word. Dan praat ons nie eens van die mensgemaakte uitvindings soos die internet, persoonlike rekenaars, globale posisioneringstelsels, selfone, radiogolwe, teorie van evolusie, relatiwiteitsteorie, narkose en mense in die ruimte nie. Agter die alledaagse skuil die fassinerende werking van kragte en wette en die wetenskap in werking: Wat bepaal dat ’n mens se hart aan die linkerkant van die liggaam sit? Hoekom vries water in ’n dam van bo en nie van onder af nie? Kan gene deur omstandighede gemodifiseer word?
Hoe Verklaar Jy Dit? is ’n boek wat jou belangstelling in die wêreld om jou sal prikkel. Dit is ’n boek wat op sy eie gelees kan word, wat op die koffietafel kan lê en wat saam kan gaan kamp om wonderlike gesprekke om die braaivleisvuur uit te lok.
This book introduces students to all the basics of electronics. After working through this book, a student will have a good knowledge of: DC power supplies; signal/function generators; digital multimeters; oscilloscopes; low power analogue electronic devices.
The No.1 SUNDAY TIMES bestseller. A fascinating explanation of how evolution works, from bestselling author of THE GOD DELUSION, Richard Dawkins. The river of Dawkins's title is a river of DNA, flowing through time from the beginning of life on earth to the present - and onwards. Dawkins explains that DNA must be thought of as the most sophisticated information system imaginable: 'Life is just bytes and bytes of information,' he writes. Using this perspective, he describes the mechanisms by which evolution has taken place, gradually but inexorably, over a period of three thousand million years. It is the story of how evolution happens, rather than a narrative of what has actually happened in evolution. He discusses current views on the process of human evolution, including the idea that we all trace back to a comparatively recent African 'Eve', and speculates that the 'information explosion' that was unleashed on Earth when DNA came into being has almost certainly happened in other places in the universe.
The South African National Commission on Higher Education has noted the shortage of skilled people in the fields of science and technology. The teaching of these subjects has been identified as an area of concern, and volume two of "Teaching Science and Technology" - a resource for training teachers at any level - seeks to address that. Throughout the book scientific knowledge is integrated with technological processes, and educators are shown how to enliven classes by applying science to everyday life in a practical way.
We know that the moon influences the tides, but did you know that with the full moon, you always see the same side of the moon? Or that a yawn is contagious for humans and some animals? And what precisely causes birds not to bump into one another when they fly in a swarm and they swerve? These facts are part of a massive amount of knowledge about nature, physics and space that the RSG programme Hoe verklaar jy dit? has been sharing for 37 years. This book, translated from the original, bestselling Afrikaans version, contains a selection from the hundreds of questions curious listeners have been asking the experts to answer in order to make the world a little less strange, because not all knowledge is obvious. There are so many wonderful enigmas in nature and space that beg to be explained – and we won’t even mention man-made inventions! How Do You Explain That? will pique your interest in the world around you. It is a book that can be enjoyed on its own, or can lie on the coffee table, or can go camping with the family to elicit wonderful conversations around the campfire.
These are proceedings from the Third Midwestern Conference on Solid Mechanics, including fifteen papers on properties of viscoelastic media, structural dynamics, stability of rotors, flutter of aircraft components, and structures.
The Papers of the Michigan Academy of Science, Arts and Letters is an annual volume of papers published under the joint direction of the Council of the Academy and of the Executive Board of the Graduate School of the University of Michigan, and edited by Paul S. Welch and Eugene S. McCartney. The agreement to publish jointly was an opportunity to establish closer relations between the University and the Academy, thus contributing to higher scholarship and original investigation. This volume from the 1921 annual meeting includes an array of papers on Anthropology, Botany, Economics, Geology, Psychology, and Zoology.
"Head Cases" takes us into the dark side of the brain in an astonishing sequence of stories, at once true and strange, from the world of brain injury.
Michael Paul Mason is one of an elite group of experts who appear in the wake of tragic accidents and coordinate care that can last a lifetime. On the road with Mason, we encounter survivors of brain injuries as they struggle to map and make sense of the new worlds they inhabit. We meet a snowboarder whose life became permanently surreal after an errant jump; an "ultraviolent" child who has lost the brain's instinctive check on the impulse to strike out at others; a young man who cannot cry; and an Iraq war veteran whose odd maladies suggest that brain injury will be the war's most conspicuous legacy.
Underlying each of their stories is an exploration into the brain and its mysteries. When injured, the brain must figure out how to heal itself, reorganizing its physiology in order to do the job, and Mason gives us a series of vivid glimpses into brain science, the last frontier of medicine. We come away in awe of the miracles of the brain's workings and astonished at the fragility of the brain and the sense of self, life, and order that resides there. "Head Cases" echoes both Oliver Sacks and Raymond Carver, and is at once illuminating and deeply affecting.
Well known as a politician and architect, Thomas Jefferson also made important contributions to science. He was elected the third president not only of the United States but also of that most august of scientific clubs, the American Philosophical Society, following in the footsteps of Benjamin Franklin and David Rittenhouse. He penned what was arguably the most important American scientific work of the eighteenth century, Notes on the State of Virginia. He designed architecture that promoted a healthy mind in a healthy body and the prevention of infectious diseases, and devised codes and a cipher machine to shield the new Republic against threats of foreign espionage. In his new book, Martin Clagett explores these and other achievements, returning Jefferson to his rightful place as an innovator in the scientific realm.
"Scientific Jefferson: Revealed "explores how science shaped Thomas Jefferson's views on politics, religion, economics, and social developments in America. The first of all sciences for Jefferson was agriculture, to which he was attached "by inclination as well as by conviction that it is the most useful of occupations of man." He introduced new and useful plants and livestock into America and advocated the study and practice of agriculture as a science. Perhaps most importantly, he brought forth his original invention of the mathematically precise "Mouldboard Plough of Least Resistance."
Clagett also highlights Jefferson's endeavors in archaeology. Jefferson developed the scientific methodology of stratification, which is the foundation of modern archeological techniques, and because of this innovation, he is often called the "Father of American Archaeology." In addition, Clagett examines Jefferson's contributions to anthropology, ethnology, comparative linguistics, paleontology, and medicine.
Scientific Jefferson is punctuated with color illustrations, charts, and documents that demonstrate Jefferson's scientific talents, interests, and accomplishments. Clagett concludes with a broader summary of Jefferson's scientific achievements and offers a fresh view of Monticello, the University of Virginia, and even Jefferson's own gravestone as testimonials to his devotion to science.
Distributed for the Office of the President of the University of Virginia
The Funding Atlas 2018 is the latest in a series of detailed reports on key figures relating to publicly funded research in Germany published by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation). In this year's Funding Atlas, data from public providers of third-party funding have been consulted and evaluated to obtain the key indicators. This English version of the Funding Atlas presents selected findings from the more comprehensive German edition. The DFG Funding Atlas furnishes reliable indicators of the effectiveness and competitiveness of publicly funded research in Germany. It documents how research locations are developing their profiles and their attractiveness for international scientists.
The Divine Proportion reveals a number of simple patterns: It is seen in the seed patterns of fruits, the family tree of bees, the pyramids of Egypt, Gothic cathedrals, Renaissance paintings, the human body, shells ... the list is endless. Mathematicians use the Greek symbol to represent the Divine Proportion and equate it to a number that is defined by the ratio (1 + 5) / 2 or 1.6180339.... Numbers do little, however, in describing this unique ratio that is found everywhere in nature and for 2500 years has been an aesthetic guide in art and architecture. Beginning with calculations found on clay tablets in ancient Babylon, the story of Divine Proportion can be traced alongside the history of numbers to the fractals of the digital age. As its many forms unfold we uncover the Golden Rectangle in the Parthenon, Golden Spirals in the human inner ear, a Golden Angle in the petal patterns of a rose, and the Fibonacci numbers in lilies, daisies, pineapples, and in our own DNA. With its natural balance and elegant beauty, the Divine Proportion is a perpetual reminder that our hope for regeneration and continuity lies in realizing the meaningful and harmonious relationship of all the parts to the whole. This book deals with the Divine Proportion, a secret code that rules art, nature, and science. It is known by many names: Golden Mean, Sacred Cut and Phi are only a few; and it is not by chance that the Divine Proportion was given its name. It has been called divine because over thousands of years it has been deemed to be so.
Easy-to-follow instructions for performing 20 famous experiments that led to major discoveries in electricity and magnetism over the past 2,500 years. Safe, clearly illustrated projects involve compasses, batteries, electromagnets, thermocouples, generators, more. List of inexpensive, readily available materials. Grades 4-6.
Edward D. Campbell had in mind two principal objects when compiling History of the Chemical Laboratory of the University of Michigan 1856 1916. The first was an attempt to give a condensed account of the development of chemistry, both pure and applied, at the University of Michigan, from the time this subject was first taught at the University to 1916. The second object was to preserve a permanent list of all those men who constituted the instructing staff in the Chemical Laboratory, together with the years of their service therein, and a list of the scientific papers and other articles that they published during the years of their official connection with the Laboratory. Chemistry was the first of the experimental sciences to be taught by the laboratory method, and the development of the science at the University of Michigan followed along lines similar to those followed by many of the European as well as American universities, although the lines of development at Michigan were influenced by local conditions and the individuality of the men constituting the teaching staff.
There are 34 primary river systems in Michigan that have watersheds of 250 square miles or more, and 9 secondary river systems that have watersheds of 500 square miles or more. The mean annual discharge rates of the trunk rivers of these systems range from a minimum of about 0.60 to a maximum of about 1.35 cubic feet per second per square mile of watershed. The regimen of Michigan streams is remarkably uniform in comparison with that of streams in many other parts of the country. This characteristic is favorable to the utilization of stream flow for practically all purposes. The qualities of the waters of the Great Lakes are better than those of the average of the inland river systems of the State. Michigan is justly classed as a hardwater state even in consideration of its surface waters alone, for few streams have waters as soft as the average for the United States as a whole. The purification of Michigan surface waters involves functions and processes for the removal of bacteria, clarification, softening, the removal of iron and manganese, the destruction of algae, and the removal of disagreeable tastes and odors. The physical structures and equipment to accomplish these purposes include screening devices, aerators, chemical treatment devices, sedimentation equipment, filters, and sterilization equipment. A tabulation of descriptive data and functional characteristics of 27 gravity rapid-sand filtration plants in Michigan discloses a variety of designs, old and modern, for treatment ranging from simple bacterial removal for invariably clear lake waters to complicated softening for highly variable, turbid, mineralized, and waste-polluted river waters.
In the research reported in this Bulletin, asphalt was heated, on a semi-commercial scale, by means of condensing diphenyl vapor. The asphalt was pumped through the inside of the heating tube, and condensing diphenyl surrounded the tube. It was found that this method of heating was entirely practical from a mechanical and control point of view, that the quality of the asphalt was not impaired to the slightest degree even under extreme heating conditions, and that overall heat transfer coefficients of 31 to 44 B.t.u. per hr. per sq. ft. per DegreesF. can easily be obtained. The observed film coefficients of heat transfer on the asphalt and diphenyl sides of the heating surface were found to be reasonably consistent with existing heat transfer theories for analogous cases.
The research in The Stability of Metals at Elevated Temperatures was undertaken for the purpose of answering three questions: first, what relation, if any, exists between the results obtained from short-time tensile and long-time creep tests?; second, what are the factors affecting the stability of metals at elevated temperatures?; and third, what mathematical relationship exists between the variables encountered in long-time testing? In regard to the first, it has been concluded that whether or not any relationship exists between these two forms of testing depends entirely upon the temperature range being considered. In regard to the second, it has been concluded that the stability may be increased by increasing the strength of the weakest phase present. That above the equi-cohesive temperature, the amorphous phase, is the weaker, while below, the crystalline phase is the weaker of the two. In regard to the third, mathematical equations have been developed connecting together stress and time for any particular temperature and any particular metal.
Clear, comprehensive exposition of interrelation of game theory and linear programming, interrelation of linear programming and modern welfare economics, Leontief theory of input-output, problems of dynamic linear programming, more. First comprehensive treatment of role of linear programming in traditional economic theory. Bibliography. Index.
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