# Trains and Boats and Planes

- Institution: Gresham College
- Speaker: Professor John D Barrow FRS
- Year: 2010
- Level: For everyone
- Language: English
- Subjects: Mathematics
- Source: [Gresham College](https://www.gresham.ac.uk/watch-now/trains-and-boats-and-planes)
- 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)

Simple maths can reveal how energy efficient different forms of transport are. We will look at how to drive as fuel efficiently as possible. When does buying a small car help? Does car-pooling always save energy? Simple estimates can also tell us about the relative efficiencies of travelling by road, rail or air - and even by bike.

## Lectures

1. [Trains and Boats and Planes](https://invisiblenetwork.ai/learn/gresham/trains-and-boats-and-planes/b27380f817a2) (YouTube)