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Category: habitats – Page 89

Stellarators, twisty machines that house fusion reactions, rely on complex magnetic coils that are challenging to design and build. Now, a physicist at the U.S. Department of Energy’s (DOE) Princeton Plasma Physics Laboratory (PPPL) has developed a mathematical technique to help simplify the design of the coils, making stellarators a potentially more cost-effective facility for producing fusion energy.

“Our main result is that we came up with a new method of identifying the irregular magnetic fields produced by coils,” said physicist Caoxiang Zhu, lead author of a paper reporting the results in Nuclear Fusion. “This technique can let you know in advance which coil shapes and placements could harm the plasma’s magnetic confinement, promising a shorter construction time and reduced costs.”

Fusion, the power that drives the sun and stars, is the fusing of light elements in the form of plasma—the hot, charged state of matter composed of free electrons and atomic nuclei—that generates massive amounts of energy. Twisty, cruller-shaped stellarators are an alternative to doughnut-shaped tokamaks that are more commonly used by scientists seeking to replicate on Earth for a virtually inexhaustible supply of power to generate electricity.

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By his late 20s, Moe had attained the young adult dream. A technology job paid for his studio apartment just blocks from the beach in Santa Barbara, California. Leisure time was crowded with close friends and hobbies, such as playing the guitar. He had even earned his pilot’s license. “There was nothing I could have complained about,” he says.

Yet Moe soon began a slide he couldn’t control. Insomnia struck, along with panic attacks. As the mild depression he’d experienced since childhood deepened, Moe’s life collapsed. He lost his job, abandoned his interests, and withdrew from his friends. “I lost the emotions that made me feel human,” Moe says. (He asked that this story not use his full name.)

Although many people with depression respond well to treatment, Moe wasn’t one of them. Now 37, he has tried antidepressant drugs and cycled through years of therapy. Moe has never attempted suicide, but he falls into a high-risk group: Though most people with depression don’t die by suicide, about 30% of those who don’t respond to multiple antidepressant drugs or therapy make at least one attempt. Moe was desperate for relief and fearful for his future. So when he heard about a clinical trial testing a new approach to treating depression at Stanford University in Palo Alto, California, near his home, he signed up.

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Endemic to the mountain forests of New Guinea, the King of Saxony bird-of-paradise (Pteridophora alberti) is best-known for the flamboyant, mate-attracting efforts of its males. The bird’s courtship displays – which often double as a means of keeping competitors at a comfortable distance – make use of bright yellow breast feathers, wildly waving head plumes and peppy dance manoeuvres capped off with an exceptionally outsized, almost otherworldly bit of squawking. This video from the Cornell Lab of Ornithology provides a rare glimpse into the world of this idiosyncratic little bird, which has proven notoriously difficult to photograph in its rugged natural habitat.

Director: Tim Laman

Websites: Cornell Lab of Ornithology, Birds of Paradise Project.

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The art of matchmaking has traditionally been the province of grandmas and best friends, parents, and even—sometimes—complete strangers. Recently they’ve been replaced by swipes and algorithms in an effort to automate the search for love. But Kevin Teman wants to take things one step further.

The Denver-based founder of a startup called AIMM has built an app that matches prospective partners using just what they say to a British-accented AI. Users talk to the female-sounding software to complete a profile: pick out your dream home, declare whether you consider yourself a “cat person,” and describe how you would surprise a potential partner.

At first glance, that doesn’t seem too different from the usual swiping-texting-dating formula of modern online romance. But AIMM, whose name is an acronym for “artificially intelligent matchmaker,” comes with a twist: the AI coaches users through a first phone call, gives advice for the first date, and even provides feedback afterwards. Call it Cyrano de Bergerac for the smartphone era.

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Three hundred and sixty-six days ago, CeCe Moore woke up to the headline that would change her world: “Suspected Golden State Killer, East Area Rapist Arrested After Eluding Authorities for Decades.” Later that day, those authorities would hold a press conference in front of the Sacramento County District Attorney’s office to explain how, a day earlier, they had finally put handcuffs on the man believed to have committed a series of sadistic rapes and murders that spread terror through California for more than 40 years. But Moore didn’t have to tune in to know how they had done it. “I knew immediately they had cracked it with genetic genealogy and GEDmatch,” she says.

She knew it because at the time, Moore was working as the genetic genealogy researcher on the PBS show Finding Your Roots and had a consulting business helping adoptees find their biological parents. To aid her searches, she regularly logged on to GEDmatch, a public database where hobbyists upload results from consumer genetic testing companies like 23andMe and Ancestry to find relatives with shared DNA and to reverse-engineer their family trees. It had come to her attention that another genealogist on the site, Barbara Rae-Venter, had been uploading files that seemed out of place, and Moore suspected they came not from family members, but from crime scenes. But she had never imagined that one of them belonged to the man believed to be one of the most notorious serial killers in US history. “This was going to be huge,” she remembers telling people that day.

But not even Moore could have predicted just how huge it would become. In the year since the dramatic arrest of Joseph James DeAngelo, the alleged Golden State Killer, investigative genetic genealogy has emerged as the most powerful new crime-fighting tool since DNA itself. The technique has been used to identify suspects in more than 50 additional cases. Its vast potential to crack tens of thousands more has given rise to a lucrative new forensic science business, the formation of dedicated family-tree-building police units, and the first-ever home DNA kit marketing campaign to get people to send in their spit to solve crimes.

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The Dishwasher. The must-have kitchen appliance for the time-conscious and lazy home-occupiers alike. However, justifying the loss of valuable space and the increase in water-bill that comes with them is sometimes a little tricky… especially when you live in a place that is on the smaller side! This was the motive that led to the creation of Toasher, the portable dishwasher for limited living spaces.

Toasher utilizes a method of interaction that has been lifted from another kitchen appliance, the toaster. The dirty items are lowered into the stainless steel tank, where an ultrasonic transducer agitates the dirt and separates it from the dishes. Add-ons elevate Toasher’s functionality even further; with the modular peg-board that can be attached to the rear of the unit, to expanding the amount of storage that it can hold and allowing it to be used as an item of furniture as well as just a kitchen appliance!

Designer: Lin Shuo De

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According to the United States Geological Survey (USGS), the quake occurred at 4:10 p.m. Jakarta time or 6:10 p.m. local time, 102 kilometers north-northeast of Laiwui in South Halmahera, at a depth of 10 kilometers.

Based on official information from the South Halmahera Disaster Mitigation Agency (BPBD), the quake was mostly felt in the regency for two to five seconds, prompting people to panic and rush out of their homes.

The BPBD is still assessing the aftermath of the quake.

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