Curated Video
The Energy of Formula 1
Learn how Formula 1 engineers have managed to recapture 'lost' energy to power their cars and win races. Physics - Energy And Radioactivity - Learning Points. Car brakes lose a massive amount of energy as heat. Acceleration and...
Curated Video
Resistance
What is resistance? Discover how it impedes electrical flow, and why understanding it can help us to build more effective circuits, and stay safe. Physics - Electricity And Circuits - Learning Points. Resistance is how well or poorly an...
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Factpack: Beaufort Scale
How to rate the wind according to Beaufort's scale, from a gentle breeze to a hurricane-force gale. Earth Science - Weather - Learning Points. A Twig FactPack Film. Open a discussion on what has been already learnt in a topic, or use to...
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What Are Electromagnets?
How do electromagnets differ from permanent magnets, and what are they used for? Physics - Electricity And Circuits - Learning Points. An electromagnet is created by running an electrical current through a coil of wire. An electromagnet...
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Fly Me to the Moon
What do you need to do to get into space? An explanation of orbits, forces and the 'slingshot effect'. Physics - Our Solar System - Learning Points. In order to land on the Moon, Apollo 11 had to be launched at just the right speed. If a...
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Steam Power
Steam power lay at the heart of the Industrial Revolution. Discover steam power's historic legacy, how it works, and how much it is still used today. Physics - Energy And Radioactivity - Learning Points. The steam engine is one of the...
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Factpack: How to Draw a Circuit
How do you design or explain a circuit using only pen and paper? Find out the universal symbols which stand for different parts of the circuit. Physics - Electricity And Circuits - Learning Points. A Twig FactPack Film. Open a discussion...
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Wind Power
Wind power is a clean and renewable energy source. But problems associated with this form of energy mean wind power currently only generates a tiny percentage of our electricity. Earth Science - Earth's Resources - Learning Points. Wind...
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Hydropower
How dams, tidal power and wave power work to generate electricity. What are the pros and cons? Earth Science - Earth's Resources - Learning Points. Hydropower uses the power of moving water as a source of energy. Dams, tidal power and...
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Building the Hoover Dam
The construction of the then-largest dam in the world: how was the construction of the dam achieved and what is its legacy today? Earth Science - Earth's Resources - Learning Points. The Hoover Dam was built in the 1930s in Nevada, USA,...
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Making a Star on Earth
Large-scale nuclear fusion is one of the ultimate goals of science which has yet to be achieved. How does nuclear fusion work and is a future likely in which we can reproduce the power of a star on Earth? Earth Science - Earth's...
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Eco-Transport
The transport industry is one of the leading polluters in the world today. What technologies are being developed to create cleaner transportation and what are their advantages and disadvantages? Earth Science - Earth's Resources -...
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Solar Power - Harnessing Sun’s Energy
The Sun has the potential to meet all our energy needs, if only we could harness it efficiently. Why is it so difficult to efficiently convert and store this energy? Earth Science - Earth's Resources - Learning Points. The Sun provides...
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Cold War to Gamma Rays
When the Americans tried to detect radiation from Soviet bombs, they in fact discovered gamma ray bursts - radiation from deep space. Physics - Universe - Learning Points. During the Cold War, the US suspected the Soviets of testing...
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The Richter Scale
Why the magnitude of earthquakes, measured on the Richter scale, increases so quickly – because the scale is logarithmic. Maths - Number A Twig Curriculum Film. Delivering key learning points. Get straight to the facts in just three...
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Friction in Curling
Forces play a huge role in the sport of curling. Discover how curlers manipulate friction as they compete. Physics - Forces - Learning Points. Friction plays an important part in sports, including curling. Curlers use the power of...
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Yellowstone: Supervolcano
The geothermal features of Yellowstone National Park are a clue to its deadly secret. It sits on a massive supervolcano. But why can't we see it and will it ever erupt? Earth Science - Geology - Learning Points. Yellowstone National Park...
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AC, DC and Transformers
Power loss affects electricity supply, especially to homes far from power stations. Why is power lost, and how is electricity effectively transported over long distances? Physics - Electricity And Circuits - Learning Points. Direct...
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Can Monkeys Write Shakespeare?
The Infinite Monkey Theorem states that a monkey hitting a keyboard an infinite number of times will, at some point, end up typing the works of Shakespeare. Find out how to calculate the probability of independent events, and how many...
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War of the Currents
The battle between famous 19th century inventors Edison and Tesla for a slice of America's electricity market, and the lengths they went to in order to secure it. Physics - Electricity And Circuits - Learning Points. Thomas Edison...
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The Incredible Strength of Ants
Why are tiny ants considered the strongest creatures in the world? An introduction to the square-cube law and why muscle mass (length3) will always outstrip strength (length2). Maths - Number A Twig Math Film....
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Nuclear Weapons
How the principles of nuclear physics have been used to unleash massive destruction. How do fission bombs and thermonuclear bombs work, and what are the differences between the two? Physics - Energy And Radioactivity - Learning Points....
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Binary: What Is Binary?
Learn how the binary base system works, and how to symbolise any number using just two digits. Maths - Number A Twig Math Film. Reinforce and extend the learning required by the curriculum. Twig’s context films show abstract concepts in...
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The Power of the Sun
How do we know how powerful the Sun's energy is from here on Earth? Measuring the surface area of an imaginary giant sphere holds the answer. Maths - Shape A Twig Math Film. Reinforce and extend the learning required by the curriculum....