With DogPhone, Your Canine Friends Can Call You Any Time for a Chat
A University of Glasgow researcher has made a device that will enable pet dogs to communicate with their owners over long distances. Dr. Ilyena Hirskyj-Douglas, a specialist in animal-computer interaction at the university’s School of Computing Science, has been building devices for her 10-year-old Labrador for a while now. Her focus is on building devices that “give dogs choices or options to do things for enrichment reasons.” DogPhone is a device that Hirskyj-Douglas developed in collaboration with colleagues from Aalto University in Finland. The device allows a dog to video-call their owner.
Hirskyj-Douglas says in a video posted by the university itself, “Dogs have been trained to answer calls but no one really knows what a dog would do if they had control over a video call. This device was really designed to just flip it and to see what a dog would do if they had control over the video and over the internet themselves.”
She added that the current pet market showcases a lot of technologies that allows a human to video-call their dogs. “But really your dog has no control over this,” she said.
DogPhone looks like a ball which is fitted with an accelerometer. When a dog picks it up and shakes it, the accelerometer senses the movement and initiates a video call on a laptop set up in the house. This allows the dog to see and interact with its owner whenever it wants to. The owner can also make the call on the device and the dog can choose to answer or ignore it.
Hirskyj-Douglas said this on testing the DogPhone on her pet: “We used this over several weeks and I gave it to him whenever he was left home alone for a long period.”
While it was quite exciting for her initially, she admits she was anxious when she did not receive a call from him. However, she thought that her dog experienced it in a different way. He was confused at the beginning but was “perfectly fine with it” after a while.
Hirskyj-Douglas said, “I think, from this experiment what is really demonstrated to me is that we can really form technology very differently for animals. Animals can be active users of technology. They can control technology. We just need to really reshape our thinking about how we see the future of dog technology.”
The paper says that it “explores the creation of a video call device to allow a dog to remotely call their human, giving the animal control and agency over technology in their home.”
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For the first time, researchers have managed to simulate a fundamental process of cosmic particle acceleration in a laboratory: the first series of discoveries that will transform our understanding of cosmic rays. Now, scientists from the Universities of Birmingham and Chicago have created a tiny, 100-micrometre Fermi accelerator, in which mobile optical potential barriers collide with trapped atoms, in a partial replica of how cosmic particles pick up energy in space. The technique not only replicates cosmic ray behaviour but also sets a new benchmark in quantum acceleration technology.
Lab-Built Fermi Accelerator Using Cold Atoms Validates Cosmic Ray Theory and Advances Quantum Tech
As per findings published in Physical Review Letters, this fully controllable setup demonstrated particle acceleration through the Fermi mechanism first proposed by physicist Enrico Fermi in 1949. Long theorised to underlie cosmic ray generation, the process had never been reliably replicated in a lab. By combining energy gains with particle losses, researchers created energy spectra similar to those observed in space, offering the first direct validation of Bell’s result, a cornerstone of cosmic ray physics.
In Fermi acceleration, ultracold atoms are accelerated to more than 0.5 metres per second using laser-controlled barriers. Dr Amita Deb, a coauthor and researcher at the University of Birmingham, mentioned, ‘Our chimney is more powerful than conventional quantum nano-measurements, which are the best acceleration tools in the world so far, and while its simplicity and small size can be compelling, its lack of a theoretical speed limit is the most attractive feature.’ The ultracold atomic jets could be readily controlled with high precision in the subsequent experiments.
This progress means that, for the first time, complicated astrophysical events like shocks and turbulence can be studied in a laboratory, lead author Dr Vera Guarrera stated. This opens new avenues for high-energy astrophysics and also for applications in quantum wavepacket control and quantum chemistry.
Researchers plan to find out how different behaviour affects energy cutoffs and acceleration rates. A compact Fermi accelerator of this type could be a cornerstone for studies of fundamental physics and also connect to emerging technologies such as atomtronics.
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Astronomers now propose that “failed stars” known as brown dwarfs could be powered by dark matter. Dark matter makes up about 85 percent of the universe’s matter but does not shine; it interacts only via gravity. Brown dwarfs form like stars but lack enough mass to ignite fusion. The theory suggests brown dwarfs in galaxy centers might trap dark matter in their interiors. When that dark matter annihilates, it releases energy that heats the star, turning the dwarf into a brighter “dark dwarf.” If such objects exist, finding them would give scientists a new clue to the nature of dark matter.
Dark Matter in Failed Stars
According to the new model, dense brown dwarfs at the centers of galaxies act like gravity wells that accumulate dark matter. Because dark matter interacts only via gravity, it naturally drifts to galactic cores, where it can be captured by star. As University of Hawai‘i physicist Jeremy Sakstein explains, once inside a star dark matter can annihilate with itself, releasing energy that heats the dwarf. The more dark matter a brown dwarf collects, the more energy it outputs. Crucially, this effect only works if dark matter particles self-annihilate (as with heavy WIMPs); lighter or non-interacting candidates like axions would not create dark dwarfs.
They propose using a chemical signature: a dark dwarf should hold on to lithium-7 that normal brown dwarfs burn away. The researchers say powerful telescopes like NASA’s James Webb Space Telescope might already be sensitive enough to spot cool, dim dark dwarfs near the Milky Way’s center. Detecting even one would strongly suggest that dark matter is made of heavy, self-interacting particles (like WIMPs).
In related work, Colgate astrophysicist Jillian Paulin coauthored studies of ancient “dark stars” fueled by dark matter, while SLAC physicist Rebecca Leane and collaborators have shown that dark matter capture could heat brown dwarfs and exoplanets – a process called “dark kinetic heating”. Together, these ideas highlight how even dim, unusual stars could illuminate the nature of dark matter.
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