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Comment on “Experimental demonstration of electric power generation from Earth's rotation through its own magnetic field”
Phys. Rev. Research 8, 028001 – Published 2 June, 2026
DOI: https://doi.org/10.1103/6qlw-cjr2
Abstract
In a recent paper, Chyba et al. [Phys. Rev. Res. 7, 013285 (2025)] claim to be able to generate electrical power from Earth's rotation by a rigid device that is stationary on Earth's surface. The device is thus corotating with the surface of Earth and the generated power is claimed to originate from the motion of the device in Earth's magnetic field. Here, I show that such a device is theoretically impossible and demonstrate where precisely there are errors in the theory by Chyba et al. Also, I argue that they have not yet shown experimentally that the sub-pW power they obtained is produced by tapping the kinetic energy of Earth's rotation.
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Reply to “Comment on “Experimental demonstration of electric power generation from Earth’s rotation through its own magnetic field””
Phys. Rev. Research 8, 028002 (2026)
Article Text
Original Article
Experimental demonstration of electric power generation from Earth's rotation through its own magnetic field
Phys. Rev. Research 7, 013285 (2025)
References (9)
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