Sounds that are lower pitched are less studied than other types. Some say it’s a health hazard. Others have doubts. By Lourdes Medrano/Undark Published Apr 17, 2024 8:00 AM EDT This article was ...

Quasiperiodic (QP) very low frequency (VLF) emissions are intermittent bursts of electromagnetic energy, observed in the frequency range of approximately 3–30 kHz, that recur at quasi-regular ...

The amount of spectrum occupied by the channel corresponding to a service, measured in hertz, is known as its bandwidth.

Here’s what you’ll learn when you read this story: Earth is surrounded by a radio field caused by very low-frequency waves. This field pushes away the Van Allen Belts, a radiation swim-floaty that ...

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

In an exploratory clinical trial, four male patients diagnosed with major depressive disorder underwent eight weeks of treatment with a device that generates a low-frequency ultralow magnetic field ...

In a world where smartphones rest in pockets, Wi-Fi networks blanket neighborhoods, and smart home devices monitor our every movement, questions about the potential health impacts of electromagnetic ...

Wireless transmitters that operate at very or ultra low frequencies (0.3‐30 kHz) typically require some big antenna complexes to handle their communications. Scientists at the Defense Advanced ...

Scientists have long struggled to study how whales produce sound. A new paper in the journal Nature paints the most complete picture yet of how baleen whales produce their iconic, haunting calls.