Fourier's analytical theory of heat transfer laid the groundwork for harmonic analysis, impacting fields from signal processing to quantum mechanics.
He established the fundamental equation for heat diffusion, asserting that 'heat, like gravity, penetrates every substance of the universe'.
Published in 1822, Fourier's 'The Analytical Theory of Heat' claimed any function can be represented by a series of sine waves, igniting mathematical debate.
Fourier mathematically analyzed the Earth's temperature variations, demonstrating significant insights into the greenhouse effect and our planet's warming.
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