Work

Some New Features of the Atmospheric Oxygen Bands, and the Relative Abundance of the Isotopes O 16 , O 18

Year: 1929

Type: article

Abstract: Humans become increasingly fragile as they age. We show that something similar may happen to states, although for states, the risk of termination levels off as they grow older, allowing some to persist for millennia. Proximate causes of their ...How states and great powers rise and fall is an intriguing enigma of human history. Are there any patterns? Do polities become more vulnerable over time as they age? We analyze longevity in hundreds of premodern states using survival analysis to help ...

Source: Proceedings of the National Academy of Sciences

DOI: 10.1073/pnas.15.6.471

Author: Harold D. Babcock

Institutions: Carnegie Institution for Science, Carnegie Observatories, Mount Wilson Observatory

Language: English

Topic: Atmospheric Ozone and Climate

Subfield: Atmospheric Science

Field: Earth and Planetary Sciences

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W1998101107

FWCI: 32.76

Cites: 1

Cited by: 17

Related to: 10