Definition

1. Noun:
   • A physical theory of relativity based on the assumption that the speed of light in a vacuum is a constant and the assumption that the laws of physics are invariant in all inertial systems: This is the formal scientific definition. It is a fundamental theory in physics proposed by Albert Einstein in 1905.

Examples of Usage

• Noun:
  • Einstein's special theory of relativity revolutionized our understanding of space and time.
  • The course will cover the principles of Einstein's special theory of relativity.
  • A key postulate of Einstein's special theory of relativity is the constancy of the speed of light.

Advanced Usage

• "the special theory of relativity": Often used without "Einstein's" as the theory is uniquely associated with him.
  • The special theory of relativity reconciles mechanics with electromagnetism.
• "special relativity": A common abbreviated form.
  • Special relativity introduces concepts like time dilation and length contraction.

Variants and Related Words

• Special relativity (n): The standard abbreviated term for Einstein's special theory of relativity.
• General theory of relativity (n): Einstein's later theory, published in 1915, which extends the principles to include gravity and acceleration.
• Relativity (n): The broader concept or the branch of physics encompassing both special and general theories.

Synonyms

• Special relativity: The direct synonym.
• The 1905 theory of relativity: A historical reference to its year of publication.

Related Phrases

• Principle of relativity: A core concept stating that the laws of physics are the same in all inertial frames.
• Lorentz transformation: The set of equations in special relativity that relate space and time coordinates between different inertial frames.

Related Idioms

(Note: Scientific theories like this one do not typically generate idioms in everyday language. However, the concepts are sometimes referenced metaphorically.) - "It's all relative": A common, often oversimplified, phrase inspired by the cultural impact of relativity, meaning that situations or judgments depend on one's perspective. This is not a technical part of the theory.

Noun

1. a physical theory of relativity based on the assumption that the speed of light in a vacuum is a constant and the assumption that the laws of physics are invariant in all inertial systems