China unveils bionic antelope robot to observe endangered Tibetan species.
A lifelike bionic Tibetan antelope robot uses 5G and AI to monitor herds in Hoh Xil without disturbing them.
Category: internet – Page 3
Hybrid chip enables two-way conversion between terahertz and optical signals for ultrafast communications
Researchers at EPFL and Harvard University have engineered a chip that can convert between electromagnetic pulses in the terahertz and optical ranges on the same device. Their integrated design could enable the development of devices for ultrafast telecommunications, ranging, spectroscopy, and computing.
Terahertz radiation describes a band of waves on the electromagnetic spectrum with frequencies higher than microwaves (which are used in telecommunications technologies like Wi-Fi) but lower than infrared light (used in lasers and fiber optics). Their short wavelengths mean that terahertz (THz) signals can transmit large amounts of data very fast, but connecting THz radiation to existing optical and microwave technologies has been extremely challenging.
In 2023, researchers in the Laboratory of Hybrid Photonics came one step closer to bridging this gap when they created an extremely thin photonic chip made of lithium niobate that, when connected to a laser beam, produced finely tailorable THz waves. Now, the team has reported a novel design that not only generates THz waves but detects incoming ones as well by converting them to optical signals.
Alarming New System Can Identify People Through Walls Using Wi-Fi Signal
Adding to the technological horror show is a troubling new system known as “WhoFi,” a high-tech apparatus that can track humans through Wi-Fi.
A team of researchers at the Sapienza University of Rome recently released a paper outlining a new system capable of detecting “biometric signatures” through distortions in Wi-Fi signals. Notably, the system can surveil humans regardless of lighting conditions, and can sense them through walls.
The researchers say that WhoFi can capture “rich biometric information,” identifying individual people with a 95.5 percent accuracy rate.
Flexible transmitter chip could make wireless devices more energy efficient
Researchers from MIT and elsewhere have designed a novel transmitter chip that significantly improves the energy efficiency of wireless communications, which could boost the range and battery life of a connected device.
Their approach employs a unique modulation scheme to encode digital data into a wireless signal, which reduces the amount of error in the transmission and leads to more reliable communications.
The compact, flexible system could be incorporated into existing internet-of-things devices to provide immediate gains, while also meeting the more stringent efficiency requirements of future 6G technologies.
The battery-powered Starlink Mini is here
Starlink is a life-changing Internet service that connects people and villages too remote for towers and cables to reach. My own Starlink Mini has been critical in helping me pursue life as a digital nomad from almost anywhere in Europe. And right now, Starlink’s the only game in town for relatively cheap and fast consumer internet that can be quickly deployed into data dead spots.
My overriding thought after using the PeakDo LinkPower for the last few weeks is this: why doesn’t SpaceX make one of these?
