In 1893, 55-year-old Austrian physicist, mathematician, and philosopher Ernst Mach (1838–1916) published the expanded second edition of his masterwork, Die Mechanik in ihrer Entwickelung historisch-kritisch dargestellt (The Science of Mechanics: A Critical and Historical Account of Its Development).

Mach delivered a critique of Isaac Newton’s concepts of “Absolute Space” and “Absolute Time”, formulating what Albert Einstein later named Mach’s Principle.

Critique of Newton’s Bucket & Mach’s Principle

Newton claimed that the concave water surface in a spinning bucket proved motion relative to “Absolute Space”.

Mach’s Counter-Argument

Mach argued that motion can only be defined relativistically—relative to other material bodies in the Universe:

“Absolute space is a pure delusion… The inertia of a body is not an inherent isolated property, but the result of its gravitational interaction with all the distant mass in the Universe.”

Mach’s Principle Statement

The inertia of any local particle is determined by the total distribution of cosmic matter across the Universe.

Direct Inspiration for Albert Einstein

Albert Einstein explicitly credited Mach’s 1893 book as the primary philosophical catalyst that liberated his thinking from Newtonian absolute space, enabling him to formulate Special Relativity (1905) and General Relativity (1915).

Key Takeaways

  • Year: 1893
  • Key Figure: Ernst Mach (Austrian Physicist & Philosopher)
  • Core Discovery: Published The Science of Mechanics and formulated Mach’s Principle.
  • Newtonian Critique: Disproved absolute space and time, establishing operational Machian relativity.
  • Relativity Relevance: Primary philosophical catalyst for Albert Einstein’s General Relativity.