Lifeboat Foundation

Neutron stars and black holes may be stellar corpses, but they are among the most active celestial objects. They produce some of the highest-energy radiation ever observed, and scientists have long puzzled over the physics that underlies the process powering their energetic emissions.

Now, in a recent paper published in Physical Review Letters, a Dartmouth physics major and an assistant professor have proposed a new theory that explains how magnetic energy can be very quickly released with explosive energy into charged particles in these extreme environments.

Similar magnetic explosions also occur closer to home, setting off solar flares and the Northern Lights. They can be observed wherever charged gases, called plasma, are found—even in a lab, says Matthew Goodbred ‘23, the paper’s lead author.

Using NASA’s Fermi spacecraft, Chinese astronomers have investigated the variability and spectral behavior of gamma-ray flares in a distant blazar known as 3C 279. Results of the study, presented in a paper published in the Publications of the Astronomical Society of the Pacific, could help researchers better understand the flaring activity of blazars.

Blazars are very compact quasars associated with supermassive black holes at the centers of active, giant elliptical galaxies. Based on their optical emission properties, astronomers divide blazars into two classes: flat-spectrum radio quasars (FSRQs) that feature prominent and broad optical emission lines, and BL Lacertae objects (BL Lacs), which do not.

At a distance of about 5 billion light years, 3C 279 is an FSRQ with an estimated black hole mass of 300–800 million solar masses. It is a bright and powerful gamma-ray source in the high–energy sky and is known as the first blazar showing strong and rapid variability at GeV energies.

Prochlorococcus is the smallest and numerically most abundant cyanobacterium in the oceans. It has a large pangenome and hypervariable genomic islands linked to niche differentiation and phage defense. The smallest and most numerous cyanobacterium in the oceans is Prochlorococcus.

According to recent research by MIT, these microscopic bacteria communicate with one another by a previously unidentified mechanism, even when they are far apart. Because of this, they can pass along entire gene sets, such as those enabling them to assimilate a certain type of nutrition or protect themselves against viruses, even in areas where their population in the water is quite low.

According to the findings, a new class of genetic agents involved in horizontal gene transfer —in which genetic material is directly transferred across animals, whether they are of the same species or not—has been discovered by methods other than lineal descent. Tycheposons are DNA sequences that can spontaneously detach from surrounding DNA and can include multiple complete genes, according to scientists.

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Research finds secret of durability of buildings such as the Pantheon could be in the techniques used at the time.

It is the first bionic hand with a multi-touch feedback feature and boasts a 32-grip pattern.

Psyonic, a bionic device manufacturer, presented the Ability Hand at CES 2023, the world’s first touch-sensing bionic hand. The hand can feel the things it holds, even the most delicate objects. It is a bionic prosthetic device, and the company aims to deliver it to more people than ever.

Continue reading “Ability Hand — a revolution in bionic technology” »

It can also rotate 220 degrees and lift up to 26.5 ounces of weight.

Supernova, a South Korean startup, has designed HUENIT, a robotic arm to help people with various household chores and creative tasks. Supernova showcased its AI Camera and Robot Arm at CES 2023. The company has been developing innovative robots to help people with everyday tasks.

Although many innovative technologies were showcased at the CES 2023, the Huenit Robot Arm captured the attention of visitors. HUENIT is an easy-to-use AI-based multi-functional robotic arm that combines advanced AI technologies with a modular arm to work on complex tasks with high precision. The robot can do everything from making coffee to 3D printing a prototype.

The robot is used for installing implants.

Could a robot make dentistry speedier and more comfortable? That’s what the new Yomi robot aims to do for implants, according to the device’s website. “We created Yomi to tackle one of the dental procedures people fear the most, implants,” write the robot’s inventors on their site.

Continue reading “This first FDA-approved dental robot will make implants safer” »

Not as a charger but as an antenna.

A team of researchers at the University of Massachusetts Amherst has found that the human body could be a useful tool to harvest waste energy and use it to power devices in the future, including those used for 6G, the next generation of wireless communication, a university press release said.

The world has just begun to experience the wonders of 5G wireless communication that has been rolled out in many countries across the world. The next generation, though, referred to as 6G, promises up to 1,000 times faster, even faster data rate and a tenth of the latency seen with 5G.

Continue reading “Human body can help power 6G devices in the future, study shows” »