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The twentieth century has been called the ?hydrocarbon century? due to the abundance of fossil fuels, and their contribution to human development. Fossil fuels were formed over millions of years by the decomposing remains of plants and animals under immense heat and pressure. This process resulted in energy laden fuels...
Teaching children to read music is a skill that can open many doors in a child's future. There are many excellent methods, activities, and games that can be used to teach children music. There are even methods to teach blind children how to read notes in braille and play instruments. No child needs to be left out of le...
A blast from the past? The east coast of Australia was once lined by volcanoes that were so explosive they could shoot sand-sized particles 2300 kilometres – all the way across to the west coast. The volcanic activity occurred 100 million years ago, at a time when New Zealand began tearing away from Australia’s eastern...
An asteroid is a small body that orbits around the sun, and is also called a minor planet or planetoid. They are generally smaller than planets, but are certainly larger than meteoroids. They are often mistaken as comets when they enter the Earth’s atmosphere. However, comets exhibit a coma and a tail, while asteroids ...
Given an equation of a curve, say , the standard process of plotting involves obtaining many pairs of coordinates , which satisfy the equation of curve. Having plotted a sufficiently large number of points, one gets a good picture of the curve. In curve tracing (or curve sketching), we do not plot the points (generally...
Jeff and his colleagues are outstanding teachers, and I was completely captivated by the class. Later, I found myself thinking about two ideas educators toss around as we consider how best to help our students develop their skills: project-based and differentiated learning. My woodworking teachers designed experiences ...
Activity II: Who is That Man? Learning GoalStudents will be able to explain the personality differences between the 1996 candidates and thereby assess their overall fitness for public office. Instructions1. Create a "matching test" that asks the class to identify who is being described in certain revealing statements p...
Avicennia, also called black mangrove, genus comprising at least eight species of trees or shrubs in the family Acanthaceae. Avicennia has a wide geographical distribution, with members found in intertidal estuaries along many of the world’s tropical and warm temperate coasts. Their fleshy, leathery leaves are opposite...
Let us imagine that the African slave trade had continued in a legal and open manner well into the 19th century. It is plausible to assume that hundreds of thousands if not millions of Africans would have been brought into the country. This most likely would have resulted in the “democratization” of slavery as prices f...
Much like in preschool, your kindergartener is learning the fundamentals of counting, measuring, sorting, and number operations. But kindergarten children are expected to work more independently, more quickly, and with less prompting from adults. By practicing math concepts at home as well as in the classroom, your chi...
Last time, I discussed how El Niño events make normally dry places in the tropics rainy and normally rainy places dry. This redistribution of rainfall generates waves in the atmosphere that disrupt normal weather patterns around the world. El Niño is not the only process that redistributes rain in the tropics. Waves in...
Sharks are apex predators, feeding on turtles, fish, seals, crabs and mollusks. They have adapted to feed on virtually everything in their environment. Their predation is a crucial element in maintaining population in different areas of the ocean, preventing prey animals from overgrazing any one area.Continue Reading D...
Section 2: Fort Berthold Reservation The Fort Berthold Reservation was set up for the Three Affiliated Tribes (the Mandan, Hidatsa, and Arikara Nation) by the U.S. government in 1851. It is located along the Missouri River in the west-central part of the state. For hundreds of years, the Mandan and Hidatsa people had f...
April 12, 2017 The moon no longer has a magnetic field, but NASA scientists are publishing new research that shows heat from crystallization of the lunar core may have driven its now-defunct magnetic field some 3 billion years ago. Magnetized lunar rocks returned to Earth during the Apollo missions established that the...
Like, the agricultural sector, India's industrial sector could also not be built under the British rule. The colonial rule ensured that the handicraft's industry faced a downslide and no other industry was allowed to come up and flourish and take the place of the handicraft's industry. The British empire followed a pol...
The 1862 Land Act Map (known as 'the big map'), created by the Victorian Government in 1862, is one of the largest maps made in Australia (measuring 4.5 metres by 6 metres) and the only one of its kind ever produced that deals with the whole of Victoria. Intended for public display to show the 10 million acres of land ...
Digital storytelling sparks students’ imaginations. Adding elements such as images, callouts, text boxes, starbursts, and word art inspires students even more. Then creating animation effects and transitions makes the writing activity exciting and challenging. How can you integrate comic strip writing into curriculum? ...
Present Perfect Verb Tense In this present perfect verb tense worksheet, 8th graders change the verb in each of ten sentences from regular verbs to present perfect tense verbs. 7 Views 24 Downloads To Conjugate or Not to Conjugate: That is Not the Question! Young grammarians demonstrate their knowledge of the principal...
Places where plates are coming apart are called divergent boundaries. As shown in the drawing above, when Earth's brittle surface layer (the lithosphere) is pulled apart, it typically breaks along parallel faults that tilt slightly outward from each other. As the plates separate along the boundary, the block between th...
Memorizing spelling words can get tiresome, but by creating a simple board game, you can encourage your students to use what they know to win the game and cement their knowledge. By allowing them to apply their knowledge in fun and creative ways such as this, you can reinforce their learning in the classroom or at home...
We know moving charge experiences a force due to magnetic field. Magnetic field creates force into conductor passing current through it. The charges of the conductor experience of force for magnetic field. Now we determine the force on a current carrying conductor in a magnetic field. Figure: Force on a Current Carryin...
Between 1778 and 1871, the United States negotiated treaties with Indians. The first treaty was signed on September 17, 1778 at Fort Pitt, present day Pittsburgh, between the Delaware Nation and the United States of America, which was the name of the Confederacy of States before the adoption of the U.S. Constitution. T...
The neurophysiology of birds' auditory sorting process offers clues to how humans discriminate between sounds A spectrogram of a zebra finch song shows how the frequency or pitch changes over time. Dark blue indicates no sound; red, high intensity. The song is composed of syllables (short .1- to .2-second sounds separa...
Anglo-Burmese Wars, (1824–26, 1852, 1885), three conflicts that collectively forced Burma (now Myanmar) into a vulnerable position from which it had to concede British hegemony in the region of the Bay of Bengal. The First Anglo-Burmese War arose from friction between Arakan in western Burma and British-held Chittagong...
Parkinson's disease affects millions of people worldwide. Although the symptoms can be treated, there is no known cure. Scientists are investigating how regenerative medicine and stem cell science could be used to treat or prevent the disease. Tremors, muscle rigidity and other symptoms of Parkinson’s disease (PD) are ...
This looks odd. A football player is kicking balls towards a wall with two gaps in it. Notice how the balls pile up in the net as they go through the two gaps. We recall that whenerver a wave passes through an aperture, it diffracts. The narrower the gap, the greater the diffraction. When there are two slits, their dif...
The history of Jewish food is like a puzzle or a mosaic. During the Middle Ages and around the time of the Spanish expulsion of Jews in 1492, two important Jewish centers emerged in Western Europe - Iberia (called Sepharad; Sephardim pl.) and the Rhine River Valley. In Central and Eastern Europe, the Jews that lived in...
The exact number of deaths from the Dust Bowl remains unknown, but evidence suggests hundreds, even thousands, of Plains residents died from exposure to dust. The Dust Bowl claimed the lives of men, women and children, although children and the elderly were most susceptible to the harmful effects of the dust. The thick...
The major scale is your starting point should be the first scale you learn, because it is THE basis of chords and other types of scales. The major scale is actually the basis of Western music as we know it. If you learn the major scale and it's applications, you will be able to understand how chords are constructed (it...
The traditional story of the settlement of England by the Anglo-Saxons is based on the writing of the Venerable Bede from 731 CE. He wrote: “These new-comers were from the three most formidable races of Germany, the Saxons, Angles, and Jutes… these heathen conquerors devastated the surrounding cities and countryside, e...
Materials built by molecule-sized machines have moved a step closer to reality thanks to research at Manchester University. A group of scientists led by Prof David Leigh have developed what they claim is the world’s most complex synthetic molecular machine, one that can build other molecules in a similar way to how bio...
A basic worksheet to introduce 2D shapes and practise colours. Used with under 19 students for Maths with esl embedded. I used this as part of a lesson about 2D and 3D shapes. We discussed the different shapes and then learners had to 'treasure hunt' for shapes of the same name. We then matched words to shapes and fini...
Why do this problem? offers a good context in which to explore possible outcomes and to think systematically about what scores are possible. It will be important for learners to develop a recording or listing system that they are happy with, in order to find all the possible ways in which the different totals can be Yo...
The LHC is a $10 billion, 17-mile-long particle accelerator along the Swiss/French border, designed to study what happens when particles collide at extremely high energy. Such experiments will help us gain a better understanding of physics. Before getting into the significance of today’s news, some background is necess...
Prosocial behaviour is a social behaviour that benefits other people as a whole. Voluntary behaviour like helping, sharing, donation, and co-operation are such actions that may be motivated by empathy and concern about the welfare of others. Students with disabilities and students who are at the risk of academic failur...
Nest is an esoteric programming language designed by Sam Bleckley. It is a turing-complete language whose low-level instructions are nested, allowing unusual self-modifying behavior. Instructions include the digits 0-7 and !. Because all data is used in base 8, all strings of instructions between !'s are valid data, an...
The biggest stars in the galaxy take about 100,000 years to form, which is the blink of an eye in astronomical terms. (A smaller star like the sun takes millions of years to form.) So it is rare to find a star more than eight times the mass of the sun (big enough to supernova at the end of its life) while it is still f...
The First Step: How One Girl Put Segregation On Trial is a great picture book that is able to balance being informative about segregation issues while also being engaging with beautiful watercolor illustrations and relatable characters. The story gives us a glimpse into the untold struggles and strength of Sarah Robert...
Creativity produces much more than a unique work of art or an original idea. A child’s ability to think creatively promotes self-expression, emotional health, mental growth and an appreciation for diversity -- all skills and traits that are vital to a child’s overall development and well-being. Provide kids with plenty...
A 'malaria proof' mosquito' would be an valuable tool in the fight against malaria. It looks like scientists have created just such a mosquito - through a combination of disrupting the parasite development and reducing the mosquitoes lifesapn (as we discussed in class). Now all we need is a way to give such mosquitoes ...
World forests are home to a large number of the world's plant and animal species, including many endangered species. They are the habitat for about two-thirds of terrestrial species. As forests are cut down, many species are doomed to extinction. Some rainforest species can only survive in their natural habitat. Tropic...
\|Alexander Hamilton's Financial Program \|Digital History ID 2973\| The most pressing problems facing the new government were economic. As a result of the revolution, the federal government had acquired a huge debt: $54 million including interest. The states owed another $25 million. Paper money issued under the Continen...
The Galapagos Archipelago is considered to be one of the most volcanically active areas in the world. As if to prove this point, four of its volcanoes have erupted in the last 11 years alone (Sierra Negra, 2005; Cerro Azul, 2008; Fernandina, 2009; and, Wolf Volcano, 2015). Read about the Galapagos Volcanic Activity… Th...
Slides in this set You should aim to analyse texts in a similar way... If you have to analyse a piece of language or discourse, there are several things to think about: 1. Genre what kind of language it is. Written discourse could be instruction booklets or adverts, and spoken discourse could be formal speeches to an a...
A tube is much like a light bulb, as it is constructed of glass, and contains a heated filament in a vacuum. The heated filament gives off light, which we can see, just like a light bulb. However, it is not the light that is useful in tubes, but the electrons which hover around the heated filament. Tubes contain other ...
\| \| From the 17th century until the 19th century, almost twelve million Africans were brought to the New World against their will to perform back-breaking labor under terrible conditions. The British slave trade was eventually abolished in 1807 (although illegal slave trading would continue for decades after that) afte...
Consider a structure that moves not in space but time, crystals that change shape and move perpetually without energy, and always return to their original state. Such a structure would break the second law of thermodynamics, a cardinal rule of physics. Yet, in 2012, Nobel Laurette and theoretical physicist Frank Wilcze...
Activities in Phase 1 are divided into seven aspects, including environmental sounds, instrumental sounds, body sounds, rhythm and rhyme, alliteration, voice sounds and finally oral blending and segmenting. Below you will find out what each aspect aims to achieve. Aspect 1 - General sound discrimination - Environmental...
Mount Vesuvius is a volcano located in southern Italy, near the city of Naples. The volcano is renown for the eruption that occurred there nearly two millennia ago. In 79 AD, Mount Vesuvius surprised Italy with a terrifying eruption that left a mark on history. The exact date of the eruption is unknown, but scientists ...
Let us consider a rectangular loop such that it carries a current of magnitude I. If we place this loop in a magnetic field, it experiences a torque but no net force, quite similar to what an electric dipole experiences in a uniform electric field. Torque On Current Loop Let us now consider the case when the magnetic f...
Summative Assessments: Do You Know These Basics? Classroom assessment is a chance for teachers to put their creative and evaluative skills to the test. The structure and content of classroom assessments are entirely up to you. However, if you’re unsure of where to start, there are some precedents you could follow. We’v...
What is a programming language? What is a programming language? There are two main types of programming languages: visual and textual. If you have ever watched a television programme about hackers, they are usually shown working on a lot of complicated-looking text on a screen – that's how we tend to think of programmi...
At the approach of a hungry parrot snake, a tree frog egg transforms from a haven to a prison. With no parent to offer protection, the developing embryo is left defenseless with its unborn siblings stuck in a gelatinous mass on a leaf overhanging a pond. Left undisturbed the embryos hatch and drop into the water in abo...
The so-called ‘Garden of Ediacara’, a period of peace and tranquility lasting for millions of years in which Earth’s first known complex multicellular organisms thrived, came to an end as a result of the planet’s first mass extinction some 540 million years ago. But it wasn’t a shower of meteorites or the eruption of v...
As many of us know an Integrated Circuit or IC is a combination of many small circuits in a small package which together performs a task. Like an Operational Amplifier or 555 Timer IC is built by combination of many Transistors, Flip-Flops, Logic Gates and other combinational digital circuits. Similarly a Flip-Flop can...
Government and Politics The Ottoman Empire WHAT WAS THE OTTOMAN EMPIRE? It was a vast Turkish state founded in the thirteenth century by the Osmani Turks, Turks who were led by descendants of Osman I (1258–c. 1326). By the middle of the next century, the Ottoman Empire consisted roughly of modern-day Turkey (the terms ...
When discussing the Theory of Recollection, Socrates poses his stance to Simmias and Cebes. Socrates believes that the soul comes before the body in order for the recollection process to occur. Simmias raises the objection that the body and soul can be compared to an instrument being tuned. Through the reasoning of his...
What makes a story great? What makes someone a good storyteller? Storytelling is something we all do naturally, starting at a young age, but there’s a difference between good storytelling and great storytelling. In this lesson you’ll hear from Pixar directors and story artists about how they got their start and what st...
Library of Congress Born a slave in 1818 in Eastern Maryland, Frederick Douglass became an outspoken 19th-century American abolitionist. The self-educated Douglas escaped slavery by disguising himself as a sailor and later took up residence in New Bedford. He risked his own freedom by becoming an outspoken anti-slavery...
Someday soon, home may be where the recycling happens. If Dr. Joshua Pearce has his way, that is. Pearce has spent his career investigating how technology can address the pressing global issues of sustainability and poverty. Last year, he and his team from Michigan Technological University’s Open Sustainability Technol...
Americans tend to think of affirmative action as a uniquely American institution: an outgrowth of the civil rights movement, intended primarily to improve economic opportunities for African Americans, who have continued to face obstacles to equality long after the Jim Crow era of segregation and overt discrimination. A...
The Mapuche (people of the earth, in their language) was one of the major aboriginal groups in Patagonia. They arrived in Patagonia Argentina from Chile, where they originated. They were collectors and hunters, but one of their most relevant feature is the importance they give to language and literature as a way of pre...
Statements of fact are the primary building blocks of reasoned arguments. Premises can be simple statements of "fact." For example: "The Earth circles the Sun," or "The United States is on the Earth." You could make the argument: PREMISE: The Earth circles the Sun PREMISE: The United States is on the Earth CONCLUSION: ...
Fractions Tutor: learn with graphical representations Revised through Research We have developed and iteratively improved the Fractions Tutor based on five experimental studies with over 3,000 students who used the tutor as part of their regular classroom instruction. Multiple Graphical Representations The Fractions Tu...
Around 250 million years ago, at the end of the Permian geologic period, there was a mass extinction so severe that it remains the most traumatic known species die-off in Earth's history. Although the cause of this event is a mystery, it has been speculated that the eruption of a large swath of volcanic rock in Russia ...
When different types of fossils are talked or written about, they are often given complicated Latin names, such as Dactylioceras commune, Neohibolites minimus and Stigmaria ficoides. These names can sound a bit daunting and you may think that they are more complicated than the need to be, but there are reasons why we u...
SSWH9 The student will analyze change and continuity in the Renaissance and Reformationd. Analyze the impact of the Protestant Reformation; include the ideas of Martin Luther and John Calvin. e. Describe the Counter Reformation at the Council of Trent and the role of the Jesuits. 37) JOURNAL ENTRY, “Luther Leads the Re...
Coccinellidae (/ˌkɒksɪˈnɛlɪdiː/) is a widespread family of small beetles ranging in size from 0.8 to 18 mm (0.03 to 0.71 inches). The family is commonly known as ladybugs in North America, and ladybirds in Britain and other parts of the English-speaking world. Entomologists widely prefer the names ladybird beetles or l...
The line 𝐴𝐵 is parallel to the 𝑦-axis. If the coordinates of the points 𝐴 and 𝐵 are 𝑚, two and eight, six, respectively, find the value of 𝑚. If two straight lines are parallel, then their slopes or gradients are equal. As 𝐴𝐵 is parallel to the 𝑦-axis, then the slope of 𝐴𝐵 will be the same as the slope of t...
What is it? Reading comprehension strategies focus on the learners’ understanding of written text. Students are taught a range of techniques which enable them to comprehend the meaning of what they read. These can include: inferring meaning from context; summarising or identifying key points; using graphic or semantic ...
\|Philosophy Pages\|\|Dictionary\|\|Study Guide\|\|Logic\|\|F A Q s\| Shortly after the end of the first World War, a group of mathematicians, scientists, and philosophers began meeting in Vienna to discuss the implications of recent developments in logic, including Wittgenstein's Tractatus. Under the leadership of Moritz Schlic...
Easy Ways To Use Technology Elementary & Secondary Grade Levels Quiet a Noisy Classroom To make it easier to give lessons and presentations, use a tool that tracks and displays classroom noise. For example, Too Noisy is an accurate noise meter. You’ll likely find that — without having to tell them — students will becom...
The analysis of power factor can also be made in terms of power drawn by the a.c. circuit. If each side of the current triangle oab of Fig. 6.1 is multiplied by voltage V, then we get the power triangle OAB shown in Fig. 6.2 where The following points may be noted form the power triangle : The apparent power in an a.c....
The search for life has led astronomers to the icy moons in our Solar System. Among those moons, Europa has attracted a lot of attention. Europa is Jupiter’s fourth-largest moon—and the sixth-largest in the Solar System—at 3,100 kilometres (1,900 mi) in diameter. Scientists think that its oceans could contain two or th...
We live in the Milky Way galaxy. Earth is located in one of the galaxy's spiral arms, affording those of us who live in darker parts of the world a view of a band of light snaking across the sky. That band of light is the subject of intense study, as astronomers try to answer questions about its origin and development....
As a parent, you may have heard the word ‘consent’, but you might not know what it means or what it includes. Simply put, consent is permission for something to happen or an agreement to do something. Consent needs respect and communication. Consent is an important concept for children to learn about from an early age....
In this activity, students use UV beads to investigate the effectiveness of different sunscreen lotions. By the end of this activity, students should be able to: - explain the connection between UV rays from the Sun and sunburn - explain how our skin can be protected through the use of sunscreen - explain the Sun prote...
- In fourth grade simple stories or essays are expected from most children. A topic sentence becomes the introduction, lots of facts become one or more body paragraphs, and a summing-it-all-up sentence becomes the conclusion. Many students need help with the introductions, not knowing how to begin. Almost all students ...
Source of Evolutionary Differences Among Species Uncovered University of Toronto Faculty of Medicine researchers have uncovered a genetic basis for fundamental differences between humans and other vertebrates that could also help explain why humans are susceptible to diseases not found in other species. Scientists have...
Massive suns, billions of years, the vastness of space – astronomy is literally a science of epic proportions. Considering this, the measurements we use for every day practical purposes, such as weighing ourselves or defining distances between one city and the next, are relatively ineffective for astronomical accuracy....
French Canadians/ Aboriginals Division III or IV two 45-minute classes This lesson examines the trial of Louis Riel in 1885. The students will use a variety of resources to formulate an opinion about the fairness of Riel’s trial. Students will work in small groups, examining primary sources from the Peel collection. Af...
The human whipworm, which infects 500 million people and can damage physical and mental growth, is killed at egg and adult stage by a new drug class developed at the Universities of Manchester and Oxford and University College London. Current treatments for human whipworm are based on 1960s drugs initially developed fo...
Figure 6-1. - The three states of matter. effect on substances or bodies. When a body or substance is stated to be cold, the heat that it contains is less concentrated or less intense than the heat in some warmer body or substance used for comparison. In the theory of heat, the speed of the molecules indicates the temp...
Fill out the form below to receive a free trial or learn more about access: Cells represent the most basic biological units of all organisms, whether it be simple, single-celled organisms like bacteria, or large, multicellular organisms like elephants and giant redwood trees. In the mid 19th century, the Cell Theory wa...
Students will predict and observe the effects that freezing and thawing have on water as it floats and sinks in oil. Key Concept: Water floats or sinks in oil depending on its state of matter. - Crayola markers - freezer and ice cube tray - cooking oil - clear glass or plastic cup Procedure and Results: 1.Create concen...
In this lesson students learn about the impacts of ice in the Arctic melting by watching a series of demonstrations. The context of the lesson is the work of Dr Helen Findlay who was investigating the effect of environmental change on the Arctic ecosystem. Students investigate the relationship between latitude and clim...
This is a lesson on enlargements for use in a secondary transformations unit. This enlargements lesson includes Powerpoint and workbook. Skills covered are: enlarging a shape from a centre of enlargement with a positive scale factor,enlarging a shape with a fractional scale factor, describing the enlargement. Time savi...
The San Andreas Fault exemplifies a transform fault plate boundary. Transform fault boundaries consist of two plates sliding against each other in a horizontal motion. Most transform faults are underwater, but the San Andreas Fault is one of the few that is exposed on land. Transform faults have shallow earthquakes tha...
1. May Day March, 1909 Via jewishlaborcommittee.org These women, marching on May 1, 1909 in New York, wear signs reading "Abolish Child Slavery" in English and Yiddish. Jewish workers in the US began forming unions [pdf] in the 1880s, and the Jewish labor movement experienced a turning point in the 1930s as Jewish work...
In its broadest sense, geology is the study of Earth — its interior and its exterior surface, the rocks and other materials that are around us, the processes that have resulted in the formation of those materials, the water that flows over the surface and lies underground, the changes that have taken place over the vas...
Birds utilize a number of behavioral adaptations that afford them some protection from frigid air such as we have been experiencing lately. They include sunning (turning their backs to the sun, exposing the largest surface of their bodies to the heat), shivering, tucking (placing one foot up inside feathers while stand...
two phases. In the first, 1820-60, a post-imperial church clung to its privileges in a time of secular state-building. In the second, 1860-1910, a reformed church clashed with liberal regimes and lost much of its public power. Throughout the century the church expanded and the faithful multiplied. The church reflected ...
It was to remove the ignominious portrayal of the Native American as savage and wild that historians adopted 1992 as the year to depict them in their true light as members of civilizations worthy of study and respect. Q1: What does in their true light mean here? Q2: I cannot justify the role of as the year in the sente...
In William Golding's Lord of the Flies, the reality of how merciless the world really is can be revealed symbolically through Golding's use of object symbolism. The characters that Golding establishes allow us, as humans to realize that not only adults, but children too, are cruel and selfish creatures that will stop a...
Gastroenteritis is an inflammation of the lining of the intestines caused by a virus, bacteria or parasites. Viral gastroenteritis is inflammation of the lining of the stomach, small intestine, and large intestine. Several different viruses can cause viral gastroenteritis, which is highly contagious and extremely commo...
Around the same time that the dinosaurs became extinct on Earth, a volcano on Mars went dormant, NASA researchers have learned. Arsia Mons is the southernmost volcano in a group of three massive Martian volcanoes known collectively as Tharsis Montes. Until now, the volcano's history has remained a mystery. But thanks t...
The European beaver (Castor fiber) was an important part of the native fauna of the Caledonian Forest. Hunted to extinction by the 16th century, it is now one of Scotland’s most recent reintroduction successes. The European beaver was originally distributed throughout most of Europe and northern Asia, from Scotland to ...
Advanced robotic bat’s flight characteristics simulate the real thing Bats have long captured the imaginations of scientists and engineers with their unrivaled agility and maneuvering characteristics, achieved by functionally versatile dynamic wing conformations as well as more than forty active and passive joints on t...
Beginning in the 1830s, colonial leaders in what would become Canada recognized that they needed railways within and between their colonies to improve communications, grow economically and improve military defense capabilities. The first small railways were built in the 1850s. At the 1864 Confederation conferences in C...
Earthquakes turn water into gold Research reveals high-pressure origin of precious metal Gold could be deposited almost instantaneously in the Earth's crust during earthquakes, say Australian researchers. The researchers have found gold is formed when an earthquake widens a fluid-filled rock fracture, causing a drop in...

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