# Some Interesting Curves

- Institution: Gresham College
- Speaker: Professor John D Barrow FRS
- Year: 2009
- Level: For everyone
- Language: English
- Subjects: Mathematics
- Source: [Gresham College](https://www.gresham.ac.uk/watch-now/some-interesting-curves)
- Licence: [Educational use (Gresham College's terms)](https://www.gresham.ac.uk/terms-and-conditions)
- Who can watch: Tweens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

Hanging chains and shapes of suspension bridges. The designs of some of the world's greatest bridges. The shapes of arches and domes. The shapes of the Eiffel Tower and the Swiss Re Tower (the 'Gherkin'). The design and efficiency of windmills. Why do the wind turbines have an odd number of propeller arms? The problem of building a roller coaster that doesn't subject the rider to lethal g-forces. The special properties of the clothoid curve and its use in the building of fairground rides and motorway junctions.

## Lectures

1. [Some Interesting Curves](https://invisiblenetwork.ai/learn/gresham/some-interesting-curves/b0c5daefd35a) (YouTube)