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Mathematics   Numeracy   13-14   15-17   general   Anglais  

The Code Normal distribution in fish populations

Marcus du Sautoy examines a sample of dover sole from a day's catch, and by measuring the weight of this small number of fish, explores how the bell-curve of the Normal Distribution allows us to predict what the largest fish in the population is likely to weigh, even without catching it. The calculations are not shown in full detail, but ...
  • 2011
  • 00:04:09
  • 15-17
  • Ajouté le: 3 sep. 2019

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The Code Using probability functions to help locate serial killers

Marcus du Sautoy meets a detective with a PhD in mathematics who has created a probability function that can help narrow down the area in which a serial killer is likely to live. The case of Jack the Ripper is outlined, and the probable street where he lives revealed. The function is then broken down and the different elements explained: ...
  • 2011
  • 00:04:33
  • 15-17
  • Ajouté le: 3 sep. 2019

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The Code Fractal geometry in nature and digital animation

Marcus du Sautoy describes how fractal geometry can be used to describe natural objects, and how it is used in digital animation. Trees use the simple rule of trying to maximize surface area, and this is something that can be simulated mathematically to give a very realistic result. Mandelbrot explored this fractal property of infinite complexity in his work, which ...
  • 2011
  • 00:05:05
  • 15-17
  • Ajouté le: 3 sep. 2019

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The Code Imaginary numbers at use in the real world

Starting with the logical roots of arithmetic with negative numbers, Marcus du Sautoy explains how mathematicians created imaginary numbers by ‘imagining’ the square root of -1. Though imaginary in nature, he then explores how this abstract mathematical idea has become vital to air traffic control systems. Teacher notes: Use as an enrichment and extension clip during a series of lessons ...
  • 2011
  • 00:04:33
  • 15-17
  • Ajouté le: 3 sep. 2019

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The Code Hexagons in the natural world

Marcus du Sautoy visits a beekeeper and explores how bees create their honeycombs. If they are going to tessellate they have a limited number of regular polygons they could choose from, but the hexagon is the most efficient – giving the maximum storage area for the least amount of wax. In fact, the bees do not create hexagons, but circular ...
  • 2011
  • 00:05:13
  • 15-17
  • Ajouté le: 3 sep. 2019

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The Code Using patterns in Google searches to predict flu outbreaks

Marcus du Sautoy explores how internet searches are building up a huge database of linked information which can then be mined for patterns. Visiting Google’s offices, he sees this at work and reveals just how closely Google can predict flu outbreaks, even before hospitals have begun to need to respond to them. Flu kills hundreds of thousands each year, but ...
  • 2011
  • 00:04:02
  • 15-17
  • Ajouté le: 3 sep. 2019

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How to Think Like a Computer Search engines

The term 'search engine' is explained through everyday activities and events. Computer Head is trying to find a single item in a pile of hay and is doing this by going through all the individual strands of hay. His friend Ada suggests that a search engine would be the best way to search through lots of items to find the ...
  • 2016
  • 00:03:06
  • 13-14
  • Ajouté le: 3 sep. 2019

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CBC Short Docs Numbers Guy

Showman, scholar, savant... cashier? Meet David Teitel, a man who knows more about numbers than you could ever imagine. He's worked as a cashier at health food stores since the mid-1980s. He enjoys sharing history facts, baseball statistics and arithmetic with customers — he’s famous for his numbers knowledge. After dropping out of school and struggling with mental illness, David ...
  • 2017
  • 00:21:28
  • 13-14
  • Ajouté le: 16 juin 2017

The National Quantum computing power leap

For all the heralded advances, computers basically run much the same as they did seven decades ago. They've gotten smaller, faster, with more storage, but they continue to run on a language of ones and zeros. Now the world's first commercially available quantum computers are taking those ones and zeros to a level of computing power that has never before ...
  • 2017
  • 00:05:49
  • 13-14
  • Ajouté le: 1 juin 2017

We Are Canada We Are Canada, Episode 5

A rock musician uses music to battle youth suicide and inspire hope; a millennial is making democracy cool; and an ingenious program that inspires troubled teens to stay in school. In this episode: Robb Nash, Caro Loutfi and Gabriel Lopez.
  • 2017
  • 00:44:08
  • 13-14
  • Ajouté le: 24 mai 2017

Power & Politics Electoral Reform Explained

Having promised that the 2015 federal election will be the last under the first-past-the-post system, Justin Trudeau and the Liberals face the daunting task of determining the best option for electoral reform. Dave Meslin from Unlocked Democracy gives a visual demonstration of several alternatives, including the run-off election (or ranked ballot), single transferable vote (STV) and mixed-member proportional representation (MMP).
  • 2015
  • 00:08:59
  • 13-14
  • Ajouté le: 7 jan. 2016

The Nature of Things Chaos, Science and the Unexpected

This documentary is an in-depth look at how supercomputers and computer graphics have opened up a new vista for scientists as they seek to plot and predict the shapes and forms of nature. Scientists and mathematicians are now using computer graphics to produce visual representations of natural phenomena, to determine what is predictable and what is random – to explore ...
  • 1990
  • 00:45:57
  • 15-17
  • Ajouté le: 14 juin 2013

The Nature of Things A Head for Figures

The Nature of Things takes a good-natured look at statistics, a subject that many people find incomprehensible or irrelevant. The program illustrates how abstract mathematical ideas affect us in the real world. On the basis of statistics, laws are drafted that make seatbelts mandatory or prohibit smoking. Nevertheless, when faced with decisions about uncertain situations, people often turn to intuition ...
  • 1995
  • 00:45:48
  • 13-14
  • Ajouté le: 14 juin 2013

Witness Ask a Silly Question Incontournables

Opinion polls are very influential, determining everything from how we are governed to what we eat for breakfast. But this is a completely unregulated industry, subject to human frailty and open to abuse. This offbeat and often hilarious documentary uses bogus polls to show how easily people will comment on subjects they clearly know nothing about. Viewers are then taken ...
  • 1998
  • 00:44:42
  • 13-14
  • Ajouté le: 14 juin 2013

News in Review - May 2004 Measuring Risk: Living in Scary Times

Terrorism, SARS, West Nile virus, mad cow disease can all make us feel as if we’re living in really frightening times. But the people who study danger say we should probably all relax. In this story we’ll look at how the science of statistics can help calm our anxieties and focus our attention on the real risks of everyday life.
  • 2004
  • 00:12:59
  • 13-14
  • Ajouté le: 15 mai 2004

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