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YouTube / AeroVelo

Human-Powered Helicopter Wins Sikorsky Prize

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YouTube / AeroVelo

Last year I wrote about the Sikorsky Prize, a $250,000 purse that would go to any group that could: make a human-powered helicopter that can fly for 60 seconds, reach an altitude of 3 meters (peak), and remain within a 10-square-meter area during that time. The prize was established in 1980, and people have been working to win it ever since. On June 13 of this year, the prize-winning flight finally took place. The winners are the team at AeroVelo. Here's video:

The flight lasted 64.1 seconds and reached an altitude of 3.3 meters. Here's a less inspiring video showing the four reference camera views used in determining altitude, duration, and drift within the 10-meter square area. The best part is at 1:40 when everybody freaks out, realizing that the feat has finally been accomplished:

And here's what a failed attempt looks like (from March 15):

(There's way more where that came from on the AeroVelo YouTube Channel.)

Popular Mechanics has a nice feature on the flight. Here's a snippet:

The prize-winning flight came at the very end of five days of test flights, after which the space would no longer be available. On two earlier flights, Reichert pilot the craft, called Atlas, to heights of 2 meters and 2.5 meters. With just minutes remaining before the team was scheduled to vacate the stadium to make way for an evening soccer practice, Reichert managed to squeeze in one last flight. Within 10 seconds a horn sounded signaling that he had exceeded the 3-meter mark.

At that point, Reichert knew that the challenge was to keep supplying enough power through his legs to keep the craft from descending too quickly. On two previous flights in which he'd flirted with the three-meter mark, Reichert had descended too abruptly and fallen afoul of a phenomenon called vortex ring state, in which a helicopter essentially gets sucked down by its own downwash. Both times Atlas had been wrecked. ...

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Courtesy of Nature
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science
Scientists Create Three Puppy Clones of 'Snuppy,' the World's First Cloned Dog
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Courtesy of Nature

Snuppy, the world's first cloned dog, died in 2015, but his genetic legacy lives on. As the National Post reports, South Korean scientists recently described in the journal Scientific Reports the birth of three clone puppies, all of which are identical replicas of the famous Afghan hound.

Those who lived through the 1990s might remember Dolly, the Scottish sheep that gained fame for being the very first mammal to be cloned from an adult cell. Following Dolly's 1996 cloning, scientists managed to replicate other animals, including cats, mice, cows, and horses. But dog cloning initially stymied scientists, Time reports, as their breeding period is limited and their eggs are also hard to extract.

Ultimately, researchers ended up using somatic cell nuclear transfer (SCNT) to clone a dog, the same method that was used to make Dolly. In the early 2000s, a team of South Korean scientists inserted DNA harvested from an Afghan hound's skin cells into a dog egg from which the DNA had been removed. The egg divided, which produced multiple cloned embryos.

The scientists implanted 1095 of these embryos in 123 dogs, an exhaustive initiative that yielded just three pregnancies, according to NPR. Of these, Snuppy—whose name is a combination of "puppy" and Seoul National University's initials—was the only survivor.

Snuppy died from cancer in April 2015, just shortly after his 10th birthday. To celebrate his successful life, the same South Korean researchers decided to re-clone him using mesenchymal stem cells from the dog's belly fat, which were taken when he was five. This time around, they transferred 94 reconstructed embryos to seven dogs. Four clones were later born, although one ended up dying shortly after birth.

The tiny Snuppy clones are now more than a year old, and researchers say that they don't think that the pups face the risk of accelerated aging, nor are they more disease-prone than other dogs. (Dolly died when she was just six years old, while cloned mice have also experienced shorter lifespans.) Snuppy's somatic cell donor, Tai, lived just two years longer than Snuppy, dying at age 12, the average lifespan of an Afghan hound.

Researchers say that this new generation of Snuppys will yield new insights into the health and longevity of cloned animals. Meanwhile, in other animal cloning news, a Texas-based company called ViaGen Pets is now offering to clone people's beloved pets, according to CBS Pittsburgh—a service that costs a cool $50,000 for dogs.

[h/t National Post]

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iStock
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History
Hole Punch History: 131 Years Ago Today, a German Inventor Patented the Essential Office Product
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iStock

The next time you walk into a Staples, give thanks to Friedrich Soennecken. During the late 1800s, the German inventor patented inventions for both a ring binder and the two-hole punch, thus paving the way for modern-day school and office supplies. Today’s Google Doodle celebrates the 131st anniversary of Soennecken’s hole puncher—so in lieu of a shower of loose-leaf confetti, let’s look back at his legacy, and the industrial device that remains a mainstay in supply rooms to this day.

If Soennecken’s name sounds familiar, that’s because in 1875 he founded the international German office products manufacturer of the same name. (It went bankrupt in 1973, and was acquired by BRANION EG, which still releases products under the original Soennecken label.) Not only was Soennecken an entrepreneur, he was also a calligraphy enthusiast who pioneered the widely used “round writing” style of script. But he’s perhaps best remembered as an inventor, thanks to his now-ubiquitous office equipment.

As The Independent reports, Soennecken likely wasn’t the first to dream up a paper hole-punching device. In fact, the first known patent for such an invention belongs to an American man named Benjamin Smith. In 1885, Smith created a hole puncher, dubbed the “conductor’s punch,” that contained a spring-loaded receptacle to collect paper remnants. Later on an inventor named Charles Brooks improved on Smith’s device by finessing the receptacle, and he called it a “ticket punch.”

For unclear reasons, Soennecken was the one who ended up being remembered for the device: On November 14, 1886, he filed his patent for a Papierlocher fur Sammelmappen (paper hole maker for binding), and the rest was history.

“Today we celebrate 131 years of the hole puncher, an understated—but essential—artifact of German engineering,” Google said in its description of the Doodle. “As modern workplaces trek further into the digital frontier, this centuries-old tool remains largely, wonderfully, the same.”

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