[Paper Review] What's in a Name: History and Meanings of the Term "Big Bang"

Helge Kragh|arXiv (Cornell University)|Jan 2, 2013

Multidisciplinary Warburg-centric Studies103 references3 citations

TL;DR

This paper traces the origin and evolution of the term 'Big Bang' in cosmology, revealing that Fred Hoyle coined it in 1949 as a derisive term for the expanding universe model, which later became the dominant theory. The study corrects widespread historical misconceptions, showing the term's complex conceptual lineage and its eventual acceptance despite its initially mocking intent, enriching the historical understanding of modern cosmology's development.

ABSTRACT

The name "big bang" introduced by Fred Hoyle in 1949 is one of the most successful scientific neologisms ever. How did the name originate and how was it received by physicists and astronomers in the period leading up to the hot big bang consensus model in the late 1960s? How did it reflect the meanings of the big bang, a concept that predates the name by nearly two decades? The paper gives a detailed account of names and concepts associated with finite-age cosmological models from the 1920s to the 1970s. It turns out that Hoyle's celebrated name has a richer and more surprising history than commonly assumed and also that the literature on modern cosmology and its history includes many common mistakes and errors. By following the story of "big bang" a new dimension is added to the historical understanding of the emergence of modern cosmology.

Motivation & Objective

• To investigate the origin and early reception of the term 'Big Bang' in scientific literature.
• To correct common historical inaccuracies surrounding the naming and conceptual development of the Big Bang model.
• To trace the evolution of finite-age cosmological models from the 1920s to the 1970s.
• To clarify how the term 'Big Bang' came to be associated with the hot big bang consensus model despite its initially pejorative intent.
• To provide a detailed, evidence-based account of the semantic and conceptual history of the term within the context of modern cosmology.

Proposed method

• Conduct a comprehensive historical analysis of scientific literature from the 1920s to the 1970s, focusing on terminology and conceptual models.
• Examine primary sources, including scientific papers, correspondence, and media coverage, to trace the first use and dissemination of the term 'Big Bang'.
• Analyze the role of Fred Hoyle in coining and popularizing the term, particularly in his BBC broadcasts and public lectures.
• Compare the term 'Big Bang' with alternative names and models used in the same period, such as 'primeval atom' and 'steady-state model'.
• Use contextual and linguistic analysis to interpret the semantic shift of 'Big Bang' from a dismissive label to a central scientific concept.
• Cross-reference with established cosmological histories to identify and correct persistent errors in the literature.

Experimental results

Research questions

• RQ1 How and why was the term 'Big Bang' first introduced by Fred Hoyle in 1949?
• RQ2 Why did the term 'Big Bang' gain widespread acceptance despite being initially intended as a derogatory label?
• RQ3 What were the key conceptual and terminological developments in finite-age cosmological models before the term 'Big Bang' was coined?
• RQ4 How did the scientific community's perception of the term 'Big Bang' evolve from the 1950s to the 1970s?
• RQ5 What historical misconceptions about the origin and meaning of the term 'Big Bang' are prevalent in the cosmological literature?

Key findings

• The term 'Big Bang' was coined by Fred Hoyle in a 1949 BBC radio broadcast as a mocking label for the expanding universe model, not as a scientific term.
• Despite its initially sarcastic intent, the term 'Big Bang' was quickly adopted by the scientific community and became the standard name for the model.
• The concept of a finite-age, expanding universe predates the term 'Big Bang' by nearly two decades, with early formulations by Alexander Friedmann and Georges Lemaître.
• The term 'Big Bang' gained traction not through scientific merit alone, but due to its vivid, memorable quality and media exposure.
• Numerous historical accounts in cosmology contain errors about the origin and reception of the term, including the false claim that Hoyle endorsed the model.
• The paper corrects long-standing misconceptions, establishing a more accurate and nuanced history of the term's semantic and scientific evolution.