Telecom
Researchers at the Indian Institute of Science (IISc) are working on designing antennas that can empower 6G technology, which is instrumental in realizing efficient V2X (Vehicle to Everything) communications.
Mar 24, 2023
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42
Robotics
Researchers from Bochum and Saarbrücken have detected security vulnerabilities, some of them serious, in several drones made by the manufacturer DJI. These enable users, for example, to change a drone's serial number or ...
Mar 2, 2023
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172
Engineering
In recent years, teams of engineers worldwide have been trying to develop acoustic devices based on piezoelectrics (i.e., materials that can produce electricity when mechanical stress is applied to them) integrated with conventional ...
Computer Sciences
Heat causes errors in the qubits that are the building blocks of a quantum computer, so quantum systems are typically kept inside refrigerators that keep the temperature just above absolute zero (-459 degrees Fahrenheit).
Feb 21, 2023
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634
Hardware
Imagine sitting in a packed stadium for a pivotal football game—tens of thousands of people are using mobile phones at the same time, perhaps video chatting with friends or posting photos on social media. The radio frequency ...
Feb 21, 2023
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94
Engineering
A new ultra-low-power method of communication at first glance seems to violate the laws of physics. It is possible to wirelessly transmit information simply by opening and closing a switch that connects a resistor to an antenna. ...
Jan 24, 2023
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4611
Engineering
3D-printed radio antennas that could help bring stronger mobile phone signals and faster internet connections to people living in remote communities have been developed by researchers at the University of Sheffield.
Jan 16, 2023
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95
Robotics
The Five-hundred-meter Aperture Spherical radio Telescope (FAST), also known as the China Sky Eye, is the world's largest single-dish radio telescope. Its reflector is a partial sphere of radius R=300 m. The planar partial ...
Jan 13, 2023
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57
Internet
Emerging forms of thin-film device technologies that rely on alternative semiconductor materials, such as printable organics, nanocarbon allotropes and metal oxides, could contribute to a more economically and environmentally ...
Dec 28, 2022
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164
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
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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
