Et Tu, Signal?
Software developer Stephen Diehl on Signal's move to introduce support for cryptocurrency: Many technologists viscerally felt yesterday's announcement as a punch to the gut when we heard that the Signal messaging app was bundling an embedded cryptocu.....»»
Hidden information extraction from layered structures through terahertz imaging
Noninvasive inspection of layered structures is challenging for time-resolved imaging methods, where the resolution and contrast can be compromised by prominent signal attenuation with interlayer reflections and dispersions......»»
High-speed electro-optic modulation in topological interface states of a one-dimensional lattice
Electro-optic modulators, which convert signals from the electrical to the optical domain, are at the heart of optical communications, terahertz wireless communications, microwave signal processing, and quantum technology. Next-generation electro-opt.....»»
What would signal life on another planet?
The James Webb Space Telescope may help us find the answer. Enlarge / Surveying the atmospheres of planets beyond the solar system, such as those in the TRAPPIST-1 system (artist’s concept of four of the system’s seven plane.....»»
The best WiFi routers for increasing your wireless connectivity
A stable, reliable wireless signal is a must. Lucky for you, these all deliver. Shop Prime Day deals on WiFi routers:AmazonWalmartBest BuyAs people and homes become more connected, the need for WiFi connectivity continues to increase. This is w.....»»
Vega"s PRETTY CubeSat: Unlocking satnav for Earth data
Our planet is being continuously bathed in radio signals from satnav satellites—which are useful for much more than just navigation. Dedicated space missions acquire these signal reflections to amass valuable environmental information. The shoebox-.....»»
Single sideband modulation technique can relax the bandwidth restriction
As an ultra-wideband microwave signal, amplitude shift keying (ASK) can be used in many applications, such as electronic warfare, wireless communications and modern radar systems. Initially, ASK microwave signals are generated based on radio frequenc.....»»
Bacterial biosensors: The future of analyte detection
Scientists can do some nifty things with microbes, including engineering bacterial cells to sense and signal the presence of specific compounds. These microbial whole-cell biosensors have numerous purposes, from detecting toxins in the environment to.....»»
SEC obtains Wall Street firms’ private chats in probe of WhatsApp, Signal use
Execs' "messages discussing business have been handed to the SEC," report says. Enlarge / A woman walks past a WhatsApp logo during a Meta event in Mumbai, India in September 2023. (credit: Getty Images | NurPhoto ) The.....»»
What is quantum squeezing?
How many times have you shown up to a video meeting with people at work only to find you have terrible internet that day? Maybe the others on the call are cutting in and out, or maybe your own signal is being corrupted on their screen. Regardless, ma.....»»
The Signal Protocol used by 1+ billion people is getting a post-quantum makeover
Update prepares for the inevitable fall of today's cryptographic protocols. Enlarge (credit: Getty Images) The Signal Foundation, maker of the Signal Protocol that encrypts messages sent by more than a billion people, ha.....»»
Invasive species on the menu at London restaurant
A London restaurant is exploring whether eating invasive species such as gray squirrel, American Signal crayfish and Japanese knotweed could help fight their spread, but scientists remain skeptical......»»
Stack"s arrival signals renewed confidence in automated vehicle tech
Argo AI's demise symbolized the self-driving industry's struggles. The return of its founders in a new venture, Stack, may signal the industry's recovery......»»
Proud Boys on trial: Does remorse in court signal a change for this far right group? A psychologist reviews the research
When I watched the members of the US far-right group the Proud Boys from afar before and during the Capitol riots of January 6 2021, I thought their name was quite apt. They always seemed proud—arrogant, even—and entitled......»»
Researchers present novel principle for nitric oxide-mediated signaling in blood vessels
Although a simple molecule, nitric oxide is an important signal substance that helps to reduce blood pressure by relaxing the blood vessels. But how it goes about doing this has long been unclear. Researchers at Karolinska Institutet in Sweden now pr.....»»
Glaciers could provide powerful new volcano monitoring tool
Glaciers could become a powerful tool for monitoring some volcanoes, according to new research that shows for the first time how the altitude of glaciers located on volcanoes could signal future unrest including the threat of an eruption......»»
August auto sales signal softening market
Auto sales in August increased to 1.33 million, up 17 percent over a year ago, but there are signs the market could be contracting......»»
The origin and functional diversification of the Pert-Arnt-Sim (PAS) domain—an intracellular sensor
Signal transduction and perception regulates biological activities to adapt to changing environments. The Pert-Arnt-Sim domains are commonly available sensors found across diverse receptors in bacteria, eukaryotes, and archaea. However, the extent of.....»»
Trojanized Signal, Telegram apps found on Google Play, Samsung Galaxy Store
ESET researchers have identified two active campaigns targeting Android users, where the threat actors behind the tools for Telegram and Signal are attributed to the China-aligned APT group GREF. Most likely active since July 2020 and since July 2022.....»»
Google removes fake Signal and Telegram apps hosted on Play
Before linking an account, be sure the app you're using is legit. Enlarge (credit: Mateusz Slodkowski/SOPA Images/LightRocket via Getty Images) Researchers on Wednesday said they found fake apps in Google Play that masq.....»»
Researchers develop oversampled channelization technology for radio astronomy wideband digital signal
The wideband receiving system of large radio observation equipment obtains a great number of real-time astronomical signals, and the signal preprocessing, transmission, processing and storage have become urgent issues in their operation......»»