Digital Twins are virtual models of the physical world. They use the Internet of Things, artificial intelligence and complex data in models that create insights and support (real-time) decision making. It is perhaps healthcare that holds the greatest potential for Digital Twins.
A string of Chinese video platforms are accelerating moves toward producing high-quality, 8K ultrahigh definition content by integrating 5G, artificial intelligence and virtual reality technologies.
It’s an important step toward moving 8K video into people’s living rooms, experts said.
Chinese UHD video production and distribution platform Sikai Garden Network Technology Co Ltd, also known as 4K Garden, plans to send UHD content to different terminal devices, including televisions, outdoor 8K light-emitting diode screens and VR headsets, and to explore diversified and innovative applications for the UHD industry, said Wu Yi, chairman of 4K Garden.
Throughout most of human history, the goal was to establish a better life for people. Whether proponents of change admit to it or not, they hope to make everything perfect. However, this very impulse to improve security against everything bad and eliminate all physical ills could precipitate just another kind of doom.
To borrow the words of a Jeff Goldblum character, those of us who did the most to uplift humanity may have been “so preoccupied with whether they could, they didn’t stop to think if they should.”
In Carl Sagan’s The Demon-Haunted World, he pointed out that the modern world is complicated. Everything we don’t understand is something to fear (unless you are a specialist in it), and it is a thing that can be ignorantly speculated about in a vacuum, as vaccines are by many on social media.
Rather than give up on humanity’s ability to come to correct judgments, Sagan offers the tools of critical thinking, taking the form of the famous Baloney Detection Kit. The rules are things you can always try to offer someone if they believe nonsensical conspiracy theories.
| Hackaday
Quantum computers aren’t quite ready for the home lab, but since there are ways to connect to some over the Internet, you can experiment with them more easily than you might think. [Norbert] decided to interface a giant quantum computer to an ordinary Arduino. Why? Well, that isn’t necessarily clear, but then again, why not? He explains basic quantum computing and shows his setup in the video below.
ORLANDO, Fla., Jan. 6 (UPI) — SpaceX kicked off a surge in launch activity Thursday with the successful launch of 49 of the company’s Starlink communications satellites from Florida, heading south along the state’s coastline.
Five SpaceX missions may launch in the next month on the southern polar trajectory, flying closer to the Florida coast toward Miami than most launches, according to the U.S. Space Force.
Continue reading “SpaceX successfully completes first launch of 2022 from Florida” »
They claim that more than 100,000 passengers could be affected in a single day. 🤔
#engineering
Several high-profile executives of U.S. airlines warned on Monday, January 17, of an oncoming “catastrophic” aviation crisis that will take hold by Wednesday should AT&T and Verizon activate their new 5G services, a report from Reuters reveals.
Continue reading “US Airlines Warn of a ‘Catastrophic’ Crisis Caused by New 5G Services” »
US airlines warned about 5G, now Emirates and others are suspending flights to the US. So what’s going on and why is 5G such a concern? Let’s talk about frequencies.
Airlines in the United States fear the rollout of 5G this week could ground planes and cause huge disruptions. So why aren’t Australian airports affected?
While they don’t give the physical thrill of a real one, model roller coasters are always fun to watch. However, they actually make a poor analog of a full-sized ride, as gravitational force and aerodynamic drag don’t scale down in the same way, model roller coasters usually move way faster than the same design would in the real world. [Jon Mendenhall] fixed this deficiency by designing a model roller coaster that accurately simulates a full-sized ride.
The track and cart are all made of 3D printed pieces, which altogether took about 400 hours to print. The main trick to the system’s unique motion is that the cart is motorized: a brushless DC motor moves it along the track using a rack-and-pinion system. This means that technically this model isn’t a roller coaster, since the cart never makes a gravity-powered drop; it’s actually a small rack railway, powered by a lithium-ion battery carried on board the cart. An ESP32 drives the motor, receiving its commands through WiFi, while the complete setup is controlled by a Raspberry Pi that runs the cart through a predetermined sequence.
Continue reading “3D Printed Model Roller Coaster Accurately Simulates The Real Thing” »
As the number of electric cars on the road grows, so does the need for electric vehicle (EV) charging stations and the Internet-based managing systems within those stations. However, these managing systems face their own issues: cybersecurity attacks.
Elias Bou-Harb, director of the UTSA Cyber Center for Security and Analytics, and his colleagues — Claud Fachkha of the University of Dubai and Tony Nasr, Sadegh Torabi and Chadi Assi of Concordia University in Montreal — are shedding light on the vulnerabilities of these cyber systems. The researchers are also recommending measures that would protect them from harm.
The systems built into electric cars perform critical duties over the Internet, including remote monitoring and customer billing, as do a growing number of internet-enabled EV charging stations.
FSO communication systems are where free space acts as a communication channel between transceivers that are line-of-sight (LOS) for successful transmission of optical signals. The channel can be atmosphere, space, or vacuum, whose characteristics determine the transmission and reception of optical signals for designing reliable and efficient communication systems. Using FSO technology data is transmitted by propagation of light through atmospheric or space communication channels, allowing optical connectivity. FSO communication offers a high data rate to meet the tremendous increasing demand of broadband traffic mostly driven by Internet access and HDTV broadcasting services. Compared to fiber optics technology, FSO offers much more flexibility in designing optical network architectures at very high speeds, at tens and hundreds of Gbit/s rates. However, FSO communication is affected by atmospheric effects, which limits sensitivity and achievable data rates with acceptable BER. Some of these degradations are turbulence, absorption, and scattering, and various mitigation techniques exist for reliable and efficient data transmission [1] and to increase the communication performance. Both point-to-point, point-to-multipoint, multipoint-to-point, and multipoint-to-multipoint FSO communications are possible, depending on the different scenarios of establishing optical links. FSO communication is the most practical alternative to solve the bottleneck broadband connectivity problem. The data rates provided by FSO links continue to increase in both long-and short-range applications. FSO will be one of the most unique and powerful tools to address connectivity bottlenecks that have been created in high-speed networks during the past decade due to the tremendous success and continued acceptance of the Internet. The next generation of Internet connectivity will push the limits of existing infrastructure with high-bandwidth applications such as videoconferencing, streaming multimedia content, and network-enabled portable devices. Clearing these bottlenecks is crucial for the future growth and success of the contemporary Internet society. The bandwidth of optical communications access and edge networks will be needed to satisfy these demands. Communication systems are concerned with the transmission of information from a source to a user. The purpose of a communication system is therefore to transfer information. A very basic block diagram of any communication system (optical or radiofrequency (RF)) is shown in Fig. 4.1.
Fig. 4.1 shows a single point-to-point system, whereas in a multiplexed system there may be multiple input and output message sources and users (also called destinations). Fig. 4.2 shows other possible configurations and links for multipoint connections.
OWC is the next frontier for high-speed broadband connection and offers the following unique features and advantages: high bandwidth/capacity, ease of deployment, compact size, low power, and improved channel security. OWC can transmit and exchange voice and video communication data through the atmosphere/free-space at the rates of tens of Gbit/s and much more.
