The final part of this offbeat history of measurement.
Temperature. Take a trip up the temperature scale from the coldest place in the universe to the hottest.
Meet a man who wants to be frozen when he dies and a woman who reports to the Met Office from her lighthouse. Plus reports on why 0°C equals
32°F, and the "gringo killers" - the hottest chillies in the world.
With actor Justin Case as Mr Measurement.
Producer Bryn Higgins
Series producer Ian Duncan
A Windfall production for BBCtv