“In gravitational fields there are no such things as rigid bodies with Euclidean properties; thus the fictitious rigid body of reference is of no avail in general relativity.”
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Probable attribution
A source trail connects this quotation to Albert Einstein and Relativity: The Special and the General Theory, but the exact English wording has not been confirmed in a primary text. The attribution is therefore probable rather than definitive.
Likely origin: Relativity: The Special and the General Theory
About this quote
This page records the wording "In gravitational fields there are no such things as rigid…," which centers on gravitational, fields, things. A concrete trail points toward Einstein, but the exact English form remains unconfirmed; the page therefore labels it as attributed to him while preserving its science and creativity context.
When to use it
- Use "In gravitational fields there are no such things as rigid…" in a science discussion, then ask which concrete claim the wording makes.
- Compare its treatment of gravitational with fields in a lesson, essay, or editorial note before drawing a conclusion.
- Before sharing it as Einstein's exact words, display the attribution caveat and follow the evidence link recorded on the page.