Pulsars suggest that ultra–low-frequency gravitational waves are rippling through the cosmos. The signal seen by ...

With a clever design, researchers have solved eddy-current damping in macroscopic levitating systems, paving the way for a ...

In physics, frequency is denoted by the symbol ‘f’ or ‘ν’ and is measured in Hertz (Hz). One Hertz corresponds to one oscillation or cycle per second. For instance, if a guitar string vibrates 440 ...

Abstract: One challenge in the design of frequency-selective surface (FSS) is that the designed results are difficult to meet the accuracy demand of various physical properties simultaneously, part of ...

Cold atoms could also potentially measure much lower vacuum pressures than ion gauges can. The current lowest pressure they’ve reliably measured is around 10 -9 Pa, and NIST scientists are working on ...

Quantum Systems – a leading European manufacturer of AI-powered ISR systems for defense, public safety, and industry, and the Fraunhofer-Institute for High Frequency Physics and Radar Techniques (FHR) ...

Accurate prediction of broadband ground motion parameters is crucial for earthquake disaster prevention and mitigation. However, physics-based ground motion simulations are limited by the lack of high ...

Researchers at CUNY ASRC and Florida International University have introduced complex frequency excitations as a new method to control light, sound, and other waves, surpassing conventional material ...

1 Laboratory Electrical Measurements, Department of Electrical Measurements, “Gheorghe Asachi” Technical University of Iași, Iași, Romania 2 Laboratory Energy Utilization, Department of Energy ...

The inverse Fourier transform (inverse FFT or iFFT) reverses the operation of the Fourier transform and derives a time-domain representation from a frequency-domain dataset. Figure 1. The inverse ...