Abstract: Millimeter wave (mm-wave) communication with large-scale antenna array configuration is seen as the key enabler of the next generation communication systems. Accurate knowledge of the ...

Abstract: The infinity and orthogonality of the orbital angular momentum (OAM) of vortex electromagnetic waves (VEMWs) provide a new degree of freedom for the modulation of information. The VEMW ...

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From plagiarism to planetary corrections, we take a look at Copernicus and the introduction of heliocentricity.

A new book imagines what the world would be like if Earth spun faster and faster until days just last two hours.

May 27, 2025 — Engineers developed a fuel cell that offers more than three times as much energy per pound compared to lithium-ion batteries. Powered by a reaction between sodium metal and air, the ...