If you tried to sum up the last 150 years or so in one image, a chart of exponential growth would be a good place to start. It shows that some things change faster over time. You could apply it to life expectancy. Or compound interest....

Paul Andersen explains the importance of selection in biology. Artificial selection occurs when humans choose traits that will be selected for or against. This has created the variety of domesticated animals and crops. He then...

Here at Step Back we have been focusing on historical events that do not lean on singular important people to understand. Often, historians tend to overemphasize the roles of individuals in the overall course of humanity. But hell, I...

AP Television

Njoro, Rift Valley Province, Kenya, 21st October,
2010
1. Various shots of wheat fields affected by Ug 99 stem rus
t disease.
2....

1. Wide of agricultural scientist Norman Borlaug with reporter

2. Close up of tape machine ru
nning
3. SOUNDBITE: (English) Norman Borlaug, agricultural
scientist:
"There's no simple answers to...

Nobel Prize winner Norman Borlaug warns against ban on pesticides

1 Norman Borlaug with rep
orter
2 tape maci
ne running
3 Borlaug says there is no easy solution, he says that chemicals such as DDT are necessary, he talks...

Nobel Peace Prize winner Dr Norman Borlaug arriving at Oslo airport and being interviewed.

1. MS of Borlaug coming off the plane with his wife and being greeted by the Nobel Peace committee director, Mr Skaug and his
wife
2....

The scientist credited with agriculture's so-called "Green Revolution" has a permanent home in the U.S. Capitol.

Lawmakers unveiled a statue of Norman Borlaug on Tuesday in a ceremony on what would have been his 100th birthday....

World famous author CP Snow presented Kurt Waldheim with a declaration calling on the world to take emergency action to prevent people dieing of starvation

1. ms dead bodies on trolly, wheeled out of house, in...