Abstract: Sheet electron beam (SEB) has been widely concerned in high-power vacuum electronic devices (VEDs). By enlarging its transverse size, the current of SEB can be further increased under the ...

Abstract: Accurate identification and classification of agricultural fields is essential for analyzing crop growth, agricultural resource management, and supporting decision-making in precision ...

If you're yet to set eyes on the Aurora Borealis, then next year is the time to plot a visit to see them. British meteorologist John Griffiths explains why.

A NIMS research team has developed a new experimental method capable of rapidly evaluating numerous material compositions by measuring anomalous Hall resistivity 30 times faster than conventional ...

With four FDA-approved oncology indications and trials exploring new uses, tumor treating fields are emerging as a promising therapeutic option for certain patients with cancer. While using ...

Forbes contributors publish independent expert analyses and insights. David Bressan is a geologist who covers curiosities about Earth. Nov 28, 2025, 07:59am EST Map of the strength of the Earth's ...

The science behind a bullet train's incredible speed has advanced to the point that they no longer need wheels to stay on the tracks. There are some magnetic trains that do use rubber wheels until ...