Summary
William Henry Bragg argues that atoms are not immutable but undergo orderly transmutation, with radioactive elements like uranium and radium breaking down step by step into simpler, more stable forms. This process, he explains, involves the emission of alpha rays—particles identical to stripped helium nuclei—as one element transforms into another. However, Bragg presents evidence that atomic evolution is not a one-way degradation: Professor Millikan’s detection of high-frequency vibrations from interstellar spaces suggests synthetic processes that build complex matter from simpler forms, implying a rhythmic, cosmic cycle of disintegration and reintegration. Bragg extends this to claim that all evolution—from atoms to planets to life—is part of a single, coordinated universal system, driven by an immanent power that invites a scientific concept of Deity. The reader takes away a view of nature as an organized whole, where atomic changes are causally linked to larger evolutionary rhythms.
Key concepts
- Radioactive disintegration — The process by which complex elements like uranium and radium reduce through distinct steps into simpler, more stable elements by emitting alpha particles.
- Alpha rays — Particles shot from atomic nuclei at tremendous velocity, identical to the stripped nuclei of helium atoms, that drive elemental transformation.
- Synthetic processes — Reverse processes occurring in interstellar spaces that build complex matter from simpler forms, as inferred from Millikan’s detection of high-frequency vibrations.
- Atomic solar system model — The atom described as a miniature solar system with a central massive nucleus (proton) and orbiting planetary electrons, as seen in hydrogen’s single proton and electron.
- Rhythmic atomic evolution — The idea that atomic change is orderly and cyclical, with no beginning or ending, mirroring other phases of evolution in a coordinated universal system.
From the book
Title: The Evolution of the Atom (1920) by William Henry Bragg← Creation by Evolution ( 1928 ) edited by Frances Mason Editor's Preface → related portals : Biology 4605552 Creation by Evolution 1928 Frances Mason Layout 2 CREATION BY EVOLUTION EDITED BY FRANCES MASON CREATION BY EVOLUTION THE MACMILLAN COMPANY NEW YORK · BOSTON · CHICAGO · DALLAS ATLANTA · SAN FRANCISCO MACMILLAN & CO., Limited LONDON · BOMBAY · CALCUTTA MELBOURNE THE MACMILLAN CO. OF CANADA, Ltd . TORONTO From “Country Life,” London . The Tree of Life. Evolution does not move in a straight course, symbolized by the links in a chain; the tree is a symbol of nature’s plan of creation. The trunk represents the main course of life through the ages; the branches are the great groups of plants and animals that have…
Popular questions readers ask
- Given the title "Creation by Evolution," how does this book position itself within the historical discourse of its time (1928) regarding the origins of life? Explain the potential tension or reconciliation implied by this phrase.
- The text contrasts the "Tree of Life" metaphor with a "chain," emphasizing "no offshoots leading from one branch to another." In simple terms, explain what this specific detail of the tree metaphor conveys about the nature of evolutionary pathways and why it's presented as distinct from a chain.
- The book aims to provide "A CONSENSUS of present-day knowledge...in non-technical language that all may understand." What does this editorial goal reveal about the public's understanding and the scientific community's perceived role in educating the public about evolution in 1928?
- How might the "modifications of species" observed in butterflies and moths, as mentioned by Poulton, serve as specific evidence that supports the "Tree of Life" metaphor's description of related yet divergent forms, rather than a simple linear "chain"?
- Consider the dedication: "TO THOSE WHO SEEK EVIDENCE OF NATURE’S UNIVERSAL METHOD OF CREATION." What does the phrase "Nature's Universal Method of Creation" imply about the authors' view of evolution, and how might this perspective differ from earlier or alternative understandings of "creation"?