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Feb 16, 2023

Carbonaceous Dust Grains Within Galaxies Seen In The First Billion Years Of Cosmic Time

Posted by in categories: cosmology, evolution

Interstellar dust captures a significant fraction of elements heavier than helium in the solid state and is an indispensable component both in theory and observations of galaxy evolution.

Dust emission is generally the primary coolant of the interstellar medium (ISM) and facilitates the gravitational collapse and fragmentation of gas clouds from which stars form, while altering the emission spectrum of galaxies from ultraviolet (UV) to far-infrared wavelengths through the reprocessing of starlight. However, the astrophysical origin of various types of dust grains remains an open question, especially in the early Universe.

Here we report direct evidence for the presence of carbonaceous grains from the detection of the broad UV absorption feature around 2175A˚ in deep near-infrared spectra of galaxies up to the first billion years of cosmic time, at a redshift (z) of ∼7. This dust attenuation feature has previously only been observed spectroscopically in older, more evolved galaxies at redshifts of z3. The carbonaceous grains giving rise to this feature are often thought to be produced on timescales of hundreds of millions of years by asymptotic giant branch (AGB) stars. Our results suggest a more rapid production scenario, likely in supernova (SN) ejecta.

Feb 16, 2023

See the lifelike face of Zuzu, a man who lived 9,600 years ago in Brazil

Posted by in category: futurism

A facial approximation reveals what Zuzu, a man who lived 9,600 years ago in Brazil, may have looked like.

Feb 16, 2023

Giant meat-eating dinosaur footprint is largest found in Yorkshire

Posted by in category: food

An almost meter-long footprint made by a giant, meat-eating theropod dinosaur from the Jurassic Period represents the largest of its kind ever found in Yorkshire. Curiously, the unusual footprint appears to capture the moment that the dinosaur rested or crouched down some 166 million years ago.

The Yorkshire coast is renowned for producing some visually and scientifically incredible fossils, including thousands of . A popular destination for professional paleontologists and fossil fans, people come from far and wide to see what they can find; however, it is not every day that a footprint measuring 80 centimeters in length is discovered.

This record-breaking print was found by local archaeologist Marie Woods in April 2021. She had gone out along the coast and found this amazing fossil completely by chance. In her excitement and disbelief, Marie made contact with local fossil experts, but none were aware of the track she was describing. Following this, she then contacted Dr. Dean Lomax, a affiliated with The University of Manchester and author of “Dinosaurs of the British Isles.”

Feb 16, 2023

Now you can sit back and watch a robot pump gas into your cars

Posted by in categories: robotics/AI, transportation

The system can be attached to any fuel dispenser, offering a hands-free solution.

In an era where technology is taking over all spheres of life, refueling techniques have remained mainl a mechanical process that demands the utmost attention from the user. As a solution to this, Denmark-based Autofuel is offering a robotic refueling system that cuts the need for drivers’ attention or direct involvement.

Feb 16, 2023

Fission rocket concept could reach Solar Gravitation Lens in 15 years

Posted by in categories: chemistry, space travel

The concept could one day capture incredibly detailed images of distant alien worlds.

NASA is betting on nuclear propulsion technologies. The space agency’s Institute of Advanced Concepts (NIAC) awarded a grant to a company called Positron Dynamics for the development of a novel type of nuclear fission fragment rocket engine (FFRE).

The lightweight nuclear fission engine concept could outperform traditional chemical rocket engines while also allowing for long-lasting, deep space missions.

Continue reading “Fission rocket concept could reach Solar Gravitation Lens in 15 years” »

Feb 16, 2023

SPIDAR: A groundbreaking spider-like robot is ready to change robotics

Posted by in categories: robotics/AI, transportation

Thrusters may provide propulsion in any direction and can “roll” around the limb.

Meet the University of Tokyo’s SPIDAR, the backronym of “SpherIcally vectorable and Distributed rotors assisted Air-ground amphibious quadruped Robot,” with multimodal locomotion capability.

Continue reading “SPIDAR: A groundbreaking spider-like robot is ready to change robotics” »

Feb 16, 2023

Unleashing Harvey AI: ChatGPT-powered tech transforming legal industry

Posted by in categories: law, robotics/AI

Allen & Overy (A&O), one of the world’s largest law firms, has partnered with OpenAI-backed artificial intelligence (AI) start-up Harvey AI to automate legal document drafting and research.

The London-based law firm claims that over 3,500 of its lawyers have already tested Harvey AI, an adaption from OpenAI’s ChatGPT software, according to a press release published by the company on Wednesday.

Feb 16, 2023

From chatbots to facial recognition, here’s how AI impacts your daily life

Posted by in category: robotics/AI

AI has the potential to improve our lives and increase efficiency but it also raises important ethical and societal questions.

Artificial Intelligence (AI) has come a long way since its inception and is now an integral part of our daily lives.

Continue reading “From chatbots to facial recognition, here’s how AI impacts your daily life” »

Feb 16, 2023

Researchers resurrect dead birds as drones, thanks to taxidermy

Posted by in category: drones

A team of researchers has successfully developed drones from the bodies of stuffed dead birds. While a little macabre, the team members believe such drones could one day be used to watch animals without being seen.

But, as revealed at the American Institute of Aeronautics and Astronautics SciTech 2023 Forum, the same taxidermy drones could also be used to spy on human subjects by governments or militaries.

Feb 16, 2023

Elon Musk Has Issued A Stark Warning Over AI. This Isn’t His First Time

Posted by in categories: Elon Musk, government, robotics/AI

Elon Musk, an outspoken AI commentator, has reiterated his calls for safety checks at the World Government Summit in DubaiMusk founded OpenAI to promote AI regulation, but says the company’s changed since Microsoft’s investment.

Microsoft and Google are vying to best one another in the field, which Musk worries drives down safety checks in the pursuit of winning the race.

Thanks to the success of ChatGPT, 2023 kicked off with intense hype around the power of artificial intelligence. It’s no wonder Elon Musk, one of tech’s most outspoken public figures, had something to say on the subject.