The Feigenbaum Constant (4.669) - Numberphile

Binge on learning at The Great Courses Plus: http://ow.ly/Z5yR307LfxY The Feigenbaum Constant and Logistic Map - featuring Ben Sparks. Catch a more in-depth interview with Ben on our Numberphile Podcast: https://youtu.be/-tGni9ObJWk Ben Sparks: https://twitter.com/SparksMaths Random numbers: htt

Chinese birth rate falls to lowest since PRC was formed

China's birth rate has fallen to its lowest since the formation of the People's Republic of China 70 years ago - despite the easing of the "one-child policy". The birth rate was 10.48 per thousand in 2019 - the lowest since 1949, the National Bureau of Statistics said.

Earth is too crowded for Utopia

The global population is higher than the Earth can sustain, argues the Director of the British Antarctic Survey in the first of a series of environmental opinion pieces on the BBC News website entitled The Green Room.

Earth population 'exceeds limits'

There are already too many people living on Planet Earth, according to one of most influential science advisors in the US government. Nina Fedoroff told the BBC One Planet programme that humans had exceeded the Earth's "limits of sustainability".

The world at seven billion

Over the next week the BBC News website will be looking at the issues raised by the growth in the world's population. But how are these changes affecting people's daily lives? BBC News speaks to seven people from around the world to hear their stories.




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