The orbiting Tiangong-2 space lab has transmitted quantum-encryption keys to four ground stations, researchers reported on 18 August. The same network of ground stations is also able to receive quantum keys from the orbiting Micius satellite, which is in a much higher orbit, using the space station as a repeater. It comes just after the late July launch of Jinan 1, China’s second quantum-encrypting satellite, by the University of Science and Technology of China. USTC told the Xinhua News Agency that the new satellite is one-sixth the mass of its 2016 predecessor.
“The launch is significant,” says physicist Paul Kwiat of the University of Illinois in Urbana-Champaign, because it means the team are starting to build, not just plan, a quantum network. USTC researchers did not reply to IEEE Spectrum’s request for comments.
Category Archives: News
Space 5G Is On the Launchpad
The next generation of cellphone networks won’t just be 5G or 6G—they will be zero g. In April, Lynk Global launched the first direct-to-mobile commercial satellite, and on 15 August a competitor, AST SpaceMobile, confirmed plans to launch an experimental direct-to-mobile satellite of its own in mid-September. Inmarsat and other companies are working on their own low Earth orbit (LEO) cellular solutions as launch prices drop, satellite fabrication methods improve, and telecoms engineers push new network capabilities.
Continue reading Space 5G Is On the LaunchpadRISC-V Guns for Raspberry Pi, Legacy Chips
Two hardware makers are planning to offer chips later this year featuring the RISC-V free and open architecture standard, joining the $180 Linux-capable StarFive VisionFive RISC-V board that went on sale in January. In late June, Pine64 said it was designing a single-board computer for the market now dominated by Raspberry Pi, and Xcalibyte and DeepComputing said they would begin shipping RISC-V-based laptops at the end of the summer.
The twelve-year-old RISC-V computer instruction set architecture standard belongs to no one and everyone, giving it unique appeal compared to Intel and ARM chips, which require licensing fees. At the same time, RISC-V’s relative novelty and reduced feature set and support are barriers to more widespread adoption. An open source development effort last year to produce a Linux-capable mini-PC with RISC-V ended in failure. VisionFive was involved in that project, too. Like any new tech ecosystem, software support for RISC-V is more limited than in Raspberry Pi’s robust development community, says independent software engineer Leon Anavi in a review of the VisionFive. That said, he encouraged viewers to join in and contribute to the growing RISC-V community.
Continue reading RISC-V Guns for Raspberry Pi, Legacy ChipsFugitive banknote forger ran errands for his elderly neighbours
When the Madrid district of San Blas-Canillejas went into lockdown in 2020, a man who called himself El Lolo, (short for Manuel), offered to shop and do other errands for old ladies confined to their homes.
His neighbourliness made him popular but when his face appeared last week in a list of Spain’s most wanted fugitives, it was a neighbour who gave the police his address. The tip-off led to the arrest of Manuel Bellido Moreno, 46, who was wanted for distributing fake banknotes and had been on the run for more than seven years.
Bellido was arrested in 2014 in the Galician town of Cambados. He was accused, with his wife, of handing out fake currency made by Rafael Velasco, a prolific forger known as “the pharaoh of counterfeit bills”. Velasco faked $3.5 million dollars in $50 and $100 notes, as well as uncut sheets worth another $20 million.
When Bellido was released on remand, however, he vanished. “He was the mastermind, the one who got away,” a police investigator told El País. The investigator said Bellido learnt the dark arts of counterfeiting from Velasco.
A court found Bellido guilty in his absence and sentenced him to nine years. A police investigator suspects him of having produced tens of thousands of fake €50 banknotes.
In San Blas-Canillejas, meanwhile, a new upholsterer moved into a flat on Calle Tapiceria, named after the Spanish for upholstery. Bellido “fixed up furniture, upholstered chairs, put things together and earned some money that way,” according to a former neighbour.
During the pandemic Bellido, who had separated from his wife but lived with his two daughters, offered to run local errands or cook meals for those who could not leave their homes. Regulars at a bar near by told reporters that they saw him as a longstanding member of their community.
Bellido’s popularity was such that neighbours began throwing things at the police when they came to arrest him. Officers had to shelter in an entrance while they waited for back-up, according to local reports. Soon afterwards the man who called himself El Lolo began his jail sentence.