Telecom
Every decade or so, the wireless industry rolls out a new cellular communications standard that can transmit more data more quickly. Already under development is the next round, called "5G" because it's the fifth major generation ...
May 17, 2018
0
2
Engineering
You don't have to ask Alexa, or even push a button. With new devices pioneered by a University of Washington computer science team, battery-less objects made entirely of plastic could communicate with other devices on your ...
Dec 12, 2017
0
2
Security
Contactless card payments are fast and convenient, but convenience comes at a price: they are vulnerable to fraud. Some of these vulnerabilities are unique to contactless payment cards, and others are shared with the Chip ...
Aug 3, 2016
0
12
Business
Amazon is currently being investigated for selling illegal electronic devices, including radio signal jamming devices that can be used to confuse drones, thwart security systems and interfere with Wi-Fi networks.
Mar 22, 2024
0
33
Hi Tech & Innovation
A bright yellow machine resembling a cross between a vacuum cleaner and a small scooter scrapes a narrow village road in Cyprus, working to solve a painful mystery from the divided island nation's conflict-ridden past.
Sep 11, 2023
0
1
Consumer & Gadgets
Imagine an October surprise like no other: Only a week before Nov. 5, 2024, a video recording reveals a secret meeting between Joe Biden and Volodymyr Zelenskyy. The American and Ukrainian presidents agree to immediately ...
Jul 17, 2023
0
3
Automotive
Lawmakers on Capitol Hill are pushing to keep AM radio in the nation's cars.
May 19, 2023
1
3
Telecom
With the rapid development of modern wireless systems such as radar and communications, there is an urgent need for the integrated development of multi-functional RF antennas. Since weight, size, and space placement are at ...
Apr 21, 2023
0
6
Internet
Sweden's public radio said Tuesday that it would stop being active on Twitter, but it did not blame new labels that Elon Musk 's social media platform has slapped on public broadcasters, leading some major North American ...
Apr 18, 2023
0
17
Engineering
Sandia National Laboratories engineers are working on a device that would help ensure captured carbon dioxide stays deep underground—a critical component of carbon sequestration as part of a climate solution.
Dec 13, 2022
0
57
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
