The Caloric Theory
The caloric theory was an explanation of heat, widely accepted into the early nineteenth century, which held that heat is an invisible, weightless…
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Perpetual Motion
Perpetual motion is the idea of a machine that runs forever without any energy source, or that produces more energy than it consumes. Inventors have…
Cold Fusion at Room Temperature
The 1989 Fleischmann-Pons announcement claimed that palladium electrodes immersed in heavy water produced excess heat consistent with…
The Luminiferous Aether
The luminiferous aether was a hypothetical substance once believed to fill all of space and to serve as the medium through which light waves…