Curated Video
Atom Structure: Electron Shells
Learn why electron shells are responsible for the properties of elements, and whether they are stable or have violent reactions. Chemistry - Atoms And Bonding - Learning Points. An element's reactivity is determined by the number of...
Curated Video
Calculating Pi: Archimedes
Archimedes' mathematical ability was central to his work as a great engineer. Discover how he came up with the most accurate approximation of Pi in ancient times, by bounding a circle within 96-sided polygons. Maths - History Of Maths A...
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The Sardine Run
Witness the action at positive and negative altitudes as predators from above and below hunt millions of sardines off the coast of Africa. Maths - Number A Twig Math Film. Reinforce and extend the learning required by the curriculum....
Curated Video
What is a Calorie?
Everything we eat contains calories. We need them to function and carry out everyday tasks. How do we know which foods are right to eat and which contain 'empty calories'? Chemistry - Chemical Industries - Learning Points. Calories are...
Curated Video
Heavy Water
Why did allied soldiers in World War Two embark on a dangerous mission to stop the Nazis using heavy water? Chemistry - Atoms And Bonding - Learning Points. Atoms that have the same number of protons and electrons but different numbers...
Curated Video
Imaginary Numbers
Why did mathematicians invent imaginary numbers, and why have they become so important today? Maths - Number A Twig Math Film. Reinforce and extend the learning required by the curriculum. Twig’s math films show abstract concepts in...
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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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Benford's Very Strange Law
Mathematicians would expect that each of the numbers 1-9 would appear in the world at random. But physicist Frank Benford discovered that in fact they appear in sequence, with surprising regularity, across the man-made and natural world....
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What Are Asteroids?
How are asteroids in our Solar System formed, where are they found, and what danger do they pose to life on Earth? Physics - Our Solar System - Learning Points. Asteroids are made from rock, metal or carbon, while comets are made of rock...
Curated Video
The Birthday Paradox
How many people do you need to have in one room to be sure that two will share the same birthday? The answer is not as high as you might think... Maths - Algebra A Twig Math Film. Reinforce and extend the learning required by the...
Curated Video
Moore's Law
Computing technology has developed at a phenomenal rate in recent decades – what would once fill an entire room can now be held in the palm of your hand. So how was Moore's Law able to predict this over 50 years ago? Physics -...
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Average Joe
Meet the average American citizen – and discover why working out averages can result in some distinctly unusual outcomes. Maths - Statistics And Probability A Twig Math Film. Reinforce and extend the learning required by the curriculum....
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The Egyptians and Unit Fractions
How the Egyptians used the Eye of Horus to denote parts of the whole – and why they avoided vulgar fractions. Maths - History Of Maths A Twig Math Film. Reinforce and extend the learning required by the curriculum. Twig’s context films...
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Primed for Survival
Why do Periodica Cicada only emerge en masse during prime-numbered years? Mathematicians believe it gives the species the best chance of protecting its breed. Maths - Number A Twig Curriculum Film. Delivering key learning points. Get...
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What Does the Internet Weigh?
What is the combined weight of all of the information on the internet? Mathematicians must work with the smallest particles of the Web to find out. Maths - Number A Twig Math Film. Reinforce and extend the learning required by the...
Curated Video
Stimulating Daphnia
We examine the effects of different temperatures and chemicals on the heart rate of Daphnia. A microscope is used to let us see the Daphnia\u2019s heart and establish the heart rate under normal conditions. The heart...
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What is an Atom?
From our bodies to the oceans and stars, everything is made of millions upon millions of tiny atoms. But what are atoms made of? Chemistry - Atoms And Bonding - Learning Points. The building blocks of all elements are called atoms. Atoms...
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The Seven Bridges of Konigsberg
An early precursor to topology, this problem asks, 'is it possible to cross each of the town's bridges exactly once?' and led to the development of Eulerian paths. Maths - Shape A Twig Math Film. Reinforce and extend the learning...
Curated Video
Fractions: Slow Motion
Discover how video creates movement from still images, and how 'frame rate' affects what we see. Maths - Number A Twig Math Film. Reinforce and extend the learning required by the curriculum. Twig’s math films show abstract concepts in...
Curated Video
Mass Tourism: Case Study
Tourism is now a major industry in Thailand due to its rich culture and exotic climate. However, mass tourism puts extraordinary pressure on local resources and creates problems of overcrowding and pollution. How can Thailand manage...
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Number Theory: Gauss
How Gauss found the sum of all the numbers between 1 and 100, in a matter of seconds, aged just seven! He had developed a formula for triangular numbers, and went on to be hailed as the Prince of Mathematics as he moved on to more...
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Chinese Development of Maths
Chinese maths developed independently of the West – but with similar outcomes. Discover the parallels between East and West, and why it appears that Chinese mathematicians often got there first. Maths - History Of Maths A Twig Math Film....
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Atomic Structure
What does the Periodic Table tell us about the elements, their properties and behaviours? And why does the atomic number define each element? Chemistry - Periodic Table - Learning Points. The structure of the atom reveals why the...
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How We Touch
How the four sensory receptors in our skin, which detect heat, cold, pain and pressure, help us to feel an object, and can even help us tell if we like something or not. Biology - Being Human - Learning Points. The skin contains millions...