Energy & Green Tech
Researchers from North Carolina State University have developed a wireless system that uses radio transmitters and receivers to estimate soil moisture in agricultural fields at multiple depths in real time, improving on existing ...
Aug 17, 2022
0
39
Telecom
The COVID-19 pandemic has enormously boosted the popularity of video communication—but sometimes poor transmission quality, dropouts, and connection failures during meetings or conference calls tax the participants' patience. ...
Jul 26, 2022
0
11
Consumer & Gadgets
The pace of change in telecommunications is increasing every year.
Jul 19, 2022
0
125
Robotics
For humans, finding a lost wallet buried under a pile of items is pretty straightforward—we simply remove things from the pile until we find the wallet. But for a robot, this task involves complex reasoning about the pile ...
Jun 28, 2022
0
81
Hardware
As far as data security is concerned, there is an even greater danger than remote cyberattacks: namely tampering with hardware that can be used to read out information—such as credit card data from a card reader. Researchers ...
Jun 7, 2022
0
56
Telecom
NASA's Pathfinder Technology Demonstrator 3 (PTD-3) mission, carrying the TeraByte InfraRed Delivery (TBIRD) system, will debut on May 25 as part of SpaceX's Transporter-5 rideshare launch. TBIRD will showcase the high-data-rate ...
May 25, 2022
0
168
Automotive
Researchers from the Universidad Carlos III de Madrid (UC3M) have developed a sensor and a method for detecting road conditions while a vehicle is moving.
May 24, 2022
0
109
Robotics
Engineers at the University of California San Diego have developed a low-cost, low-power technology to help robots accurately map their way indoors, even in poor lighting and without recognizable landmarks or features.
May 19, 2022
0
201
Engineering
Joel Berkson, a third-year doctoral student in the University of Arizona James C. Wyant College of Optical Sciences and Steward Observatory, has developed a new way for precisely measuring the surfaces of radio antenna, which ...
Apr 21, 2022
0
80
Telecom
Shortly before access to the BBC News website was reportedly blocked in Russia a few days ago, the BBC announced that it was resuming the broadcasting of the BBC World Service via shortwave radio for four hours per day. It ...
Mar 9, 2022
0
4
Radio is the transmission of signals by modulation of electromagnetic waves with frequencies below those of visible light. Electromagnetic radiation travels by means of oscillating electromagnetic fields that pass through the air and the vacuum of space. Information is carried by systematically changing (modulating) some property of the radiated waves, such as amplitude, frequency, or phase. When radio waves pass an electrical conductor, the oscillating fields induce an alternating current in the conductor. This can be detected and transformed into sound or other signals that carry information.
This text uses material from Wikipedia, licensed under CC BY-SA
