While the world sprints toward ever faster mobile speeds, another connectivity story is quietly unfolding at the opposite end ...

Mechanical antennas represent a disruptive approach to low-frequency communication by exploiting the mechanical oscillation of electric charges or magnetic dipoles to generate electromagnetic ...

A metamaterial elongates the propagation path of sound waves, allowing low-frequency noise control without the need for bulky materials.

Raman spectroscopy is an analytical technique that allows for the assessment of molecular structure and the identification of materials by examining the rotational and vibrational modes of molecules.

A team of physicists has developed a method to detect gravity waves with such low frequencies that they could unlock the secrets behind the early phases of mergers between supermassive black holes, ...

We all know how to block the DC offset of an AC signal — that just requires putting a capacitor in series, right? But what if the AC signal doesn’t alternate very often? In that case, things get a ...

Research conducted by a team of scientists from Kaunas universities, Lithuania, revealed that low-frequency ultrasound influences blood parameters. The findings suggest that ultrasound’s effect on ...

Editor’s Note: This DI is a two-part series. Part 1 discusses audio oscillators, namely the Wien bridge and biquad, state-variable, or two-integrator-loop configuration. Over the years, the Design ...