Horizon - Season 2 - Eps 9: The Big Smoke / The Model Makers
Nine years after the passing of the Clean Air Act, where do we stand? Scientists are gradually finding out why dirty air Is so harmful to ill persons with Dr. P. J. Lawther of Air Pollution Research Centre at St. Bartholomew's Hospital. Whenever the things they study are too big, too far off, or too hot to handle, scientists can make a model of these-but can they be sure their models truly represent reality?
About Horizon

Title: Horizon
First Air Date: 1964-02-04
Last Air Date: 2024-07-22
Status: Returning Series
Rating: 7.3/10 (from 30 votes)
Language: EN
Seasons: 61
Total Episodes: 1162
Network: BBC Two
Genres: Documentary
Production Companies: Unknown
Synopsis
Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.