Liacos Educational Media
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English
Description
We introduce students to the concept that acceleration is a measure of how quickly something changes its speed. We join James Bond as he falls out of an aeroplane without a parachute, splash into the water at 50.4 km/hr with presenter Spiro Liacos, and watch on helplessly as a truck runs off an unfinished bridge and explodes in a massive fireball.
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English
Description
Episode 7 of the "Shedding Light on Atoms" series explains how the atoms of non-metals bond together with covalent bonds to form molecules. Science teacher Spiro Liacos introduces the concepts of electron dot diagrams, structural formulas, electron configuration, and organic chemistry.
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English
Description
This title explains the discovery of elements and the Law of Conservation of Mass, using experiments to illustrate or demonstrate these concepts. It shows how discoveries about air pressure increased suspicion that atoms exist. It shows the path to the mathematical conclusion that atoms exist, based on weight ratios of compounds, and shows us how to perform chemical equations.
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English
Description
We introduce students to the concept that the movement of an object is always relative to something else. We call it "sunrise" but does the sun really rise? Can we stand still and move around from place to place at the same time? If a car is moving forwards, can it also be moving backwards at the same time? And can we throw a single ball towards the left and towards the right at the same time? The answers to all these questions will be answered and...
Language
English
Description
Presenter Spiro Liacos introduces students to the concept that speed is a measure of how far something travels in a given amount of time, looks at how speed varies in a sprint, explains the concept of velocity, and demonstrates a number of ways of measuring an object's speed.
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English
Description
The Shedding Light on Atoms series uses demonstrations and animations to take students on a journey of discovery to explain what we know about atoms-and how we know what we know about atoms. The second episode explores how the discovery of oxygen helped to accelerate the study of chemistry. It examines how hydrogen was discovered and how it was revealed that water is formed when hydrogen and oxygen chemically join together. It then looks at oxygen's...
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English
Description
Episode 8 of the Shedding Light on Atoms series explains how ionic bonds are formed in 3D lattice structures. Spiro Liacos, a science teacher, examines how atoms can gain or lose electrons, and how the number of electrons gained or lost depends on an atom's electron configuration. The program concludes by comparing ionic compounds with covalent compounds, explaining the difference at the atomic level.
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English
Description
The Shedding Light on Atoms series uses demonstrations and animations to take students on a journey of discovery to explain what we know about atoms-and how we know what we know about atoms. The first episode examines what the ancient Greeks thought about matter, including the four-element theory, Democritus' atomic theory, and alchemy. By explaining the basics of atoms, students can better understand the chemical reactions which led to their discovery....
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English
Description
This series uses demonstrations and animations to take students on a journey of discovery to explain what we know about atoms-and how we know what we know about atoms. The Fifth episode examines the experiments that lead to the discovery of protons, neutrons, and electrons. By explaining the basics of atoms, students can better understand the chemical reactions which led to their discovery.
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English
Description
This series uses demonstrations and animations to take students on a journey of discovery to explain what we know about atoms-and how we know what we know about atoms. This fourth episode examines the discovery of atoms and the development of the periodic table. By explaining the basics of atoms, students can better understand the chemical reactions which led to their discovery. It also looks at the Mendeleev's predictions of atoms that were later...
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English
Description
In a 100-metre sprint, when do athletes reach their highest speed? When do they accelerate at the highest rate and at what point, if any, do they stop accelerating? In episode four of the Shedding Light on Motion series, we look at how graphs can help us better understand the motion of athletes and of cars and other things.
13) Electron Shells
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English
Description
This series uses demonstrations and animations to take students on a journey of discovery to explain what we know about atoms-and how we know what we know about atoms. The sixth episode examines the qualities of the electron shell, and the experiments that lead to its discovery. By explaining the basics of atoms, students can better understand the chemical reactions which led to their discovery. It also looks at the arrangement of the periodic table,...
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English
Description
In episode seven of the Shedding Light on Motion series, we answer the most important question that has ever been asked: how does a magician pull a tablecloth out from under a dinner set? No, seriously, we look at the so simple and yet so powerful equation F = ma. Newton’s Second Law tells us how to calculate the amount of force required to accelerate something by a given amount.
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English
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In Episode 2 of the Shedding Light on Acids and Bases series, Acids and Carbonates, we describe what carbonates are and explain how they react with acids. If it wasn’t for carbonates, our own stomach acid would kill us, acid rain would have destroyed our forests, and, worst of all, our pancakes wouldn’t be as soft and fluffy as they are.
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English
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In this program, we look at the three ways that heat energy can transfer from one thing to another: conduction; convection; and radiation. A heat source is useless if heat energy can’t transfer from the heat source to whatever you want heated. Understanding heat transfer is essential if you want to cook good food and if you want to stay warm when it’s cold and stay cool when it’s hot.
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English
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In Episode 3 of the Shedding Light on Acids and Bases series, Neutralization, we explain what bases are and then take a look at what happens when acids and bases chemically react. We also take a look at acid-base indicators, which are chemicals that change colour depending on whether they are in an acid or a base.
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English
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In thie episode, we examine how the world’s land masses and oceans affect global climate patterns. We look at why the air gets colder and colder the higher you go, why coastal regions don’t heat up or cool down as much as inland regions, why northern hemisphere winters are so much colder that southern hemisphere winters, and a whole lot more.
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English
Description
In Shedding Light on Nuclear Radiation Episode 4: Beta-Plus Decay, we introduce students to beta-plus particles, also known as positrons. Beta-plus particles are a form of anti-matter. Though beta-plus particles don’t really exist in huge quantities naturally on Earth, scientists have learned how to actually make atoms that emit them! Beta-plus particles have now become a major tool for doctors to diagnose a wide variety of cancers.
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English
Description
In episode 4 of the series, we look at how electrical equipment is designed to use the right amount of current for the voltage supply that it’s designed for. After a brief recap on electric current (that we examined in Episode 3) we look at what voltage is and how it is measured. We then look at the concept of resistance. At a simple level, some materials are conductors and some materials are insulators, but not all conductors conduct equally well....