1. Calculations using wood fuel as a renewable energy source

    Duration: 09.23

    Watch Clip duration: 09.23

    Stefan Gates heads into the woods of Sussex to explore sustainable energy.

  2. Designing a space at London Zoo

    Duration: 02.59

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    A designer at London Zoo has used drawings of old enclosures to redesign a new enclosure.

  3. Ink colours for printing

    Duration: 00.43

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    An introduction to the four main colours of ink required to print a magazine.

  4. Mathematics of cogs - a panel game puzzle

    Duration: 02.04

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    Four connected cogs are presented, will two of them will turn at the same speed?

  5. Using maths to calculate the most efficient use of land to produce food

    Duration: 09.07

    Watch Clip duration: 09.07

    Stefan Gates finds out the land needed to produce a kilo of snail meat.