Horizon: How Long Is a Piece of String?
- Media type
- Film
Horizon: How Long Is a Piece of String? · Horizon: How Long Is a Piece of String? · MOVIE
About this title
Alan Davies and Marcus Du Sautoy get to grips with the problem of measuring the exact length of a piece of string. They visit the National Physics Laboratory, look at how a meter is defined now, and explore the history of measurement and standardization along the way.