Scientists have shown that the bacterium Pseudomonas aeruginosa communicates using chemical signals analogous to radio signals to help cells group together and form communities. Credit: Janice Haney Carr/CDC The UCLA-led study could have implications for medical research and sustainability. The idea of bacteria coming together to form a socially organized community capable of cooperation, competition, […]
The idea of bacteria coming together to form a socially organized community capable of cooperation, competition, and sophisticated communication may at first glance sound like science fiction — or just plain crude. But biofilm communities have important implications for human health, ranging from disease to aiding digestion. And they play a role in a range […]
October 20, 2021 11:46 am (UTC + 04:00 am) 1,189 By Ayya Lmahamad Restoration work on infrastructure, including radio and television stations, continues in the liberated lands of Azerbaijan. In this context, television and radio broadcasts were launched in the city and more than 10 villages in the Zangilan region. Eight TV channels and two […]
The radio waves have been cooled to close to their quantum ground state, a process that suppresses noise from radio detection, allowing even the weakest signals to stand out. This achievement could advance many areas of research where small fluctuations in temperature hamper progress, including the detection of dark matter, a step necessary to explain […]
By Robert M. Hazen, Ph.D., George Mason University There are a bunch of common divisions in this electromagnetic spectrum. They are radio waves; microwave; infrared or thermal radiation; then visible light; then ultraviolet; radiography; and gamma rays. This list is in order of increasing energy, also decreasing wavelengths. But one of the most important types […]
A quantum sensor has been developed that can analyze the full spectrum of radio frequencies, which could open up new options for military communication. US Army researchers built the quantum sensor, which can sample from zero frequency up to 20 GHz, detecting AM and FM radio, Bluetooth, Wi-Fi and other communication signals along the way. […]
We’ve already managed to mess up Earth with everything from overfishing landfills to nuclear fallout, so it shouldn’t come as a shock that human activity is finally manifesting itself in space. The unexpected of our influence beyond the atmosphere is that it is (for once) positive. Something weird had pushed further and further away the […]
Radio waves are a type of electromagnetic radiation best known for its use in communication technologies, such as television, cell phones, and radios. These devices receive radio waves and convert them into mechanical vibrations in the speaker to create sound waves. The radio frequency spectrum is a relatively small part of the electromagnetic (EM) spectrum. […]
In a burst of light in 1864, James Maxwell theorized that electromagnetic waves – radio and light – could travel through free space without the mythical “ether” or “quintessence.” A few years later, Heinrich Rudolf Hertz – the unit of cycles per second bears his name – was able to prove that electromagnetic waves could […]