Best PC Virtual Reality Headsets

Here are the best Virtual Reality Headsets currently available for the PC. Ranging from $400 to over $1000, these are truly the ultimate gaming peripherals.

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How Natalya Brikner Became a Rocket Scientist and CEO Before 30

As Natalya Brikner worked her way through a PhD at MIT’s Space Propulsion Laboratory, she assumed she’d go on to become a professor in the field. She grew up in a small town in northwest Oregon watching the stars and thinking about the aliens among them. Studying rocket propulsion represented a practical application.

But then a project she was working on with a labmate caught the attention of the rocket industry. They created the first working prototype that made use of a propulsion technology for tiny satellites. In 2014, Brikner and Louis Perna founded Accion to commercialize the technology. They demonstrated it in space for the first time one year ago this month.

Brikner and Perna never became professors, but today Brikner—now CEO of Accion—is lining up the first commercial orders for the Cambridge, Massachussetts-based startup’s propulsion systems. Some potential customers are interested in communications, which can include satellites that provide broadband Internet from low-Earth orbit. There are also eager prospects in the military space.

Natalya Brikner is the 29-year-old CEO of Accion Systems.

The dime-sized rocket engines contain a propellant in which charged particles accelerate to enormous speeds to create thrust, which would lend tiny satellites commonly used to collect images and other data from Earth the useful skill of repositioning themselves. The technology could someday be scaled up, too, allowing it to power larger satellites.

Compared to her time as a PhD student, Brikner now does very little research. She spends about 20 percent of her time brainstorming product ideas for proposals and hunting for “technological whitespace” in satellites and other fields, which she describes as extraordinarily fun. During the rest of her time, she’s charged with leading a growing company.

Along the way, Brikner, 29, has built a fanbase. She made the Forbes 2016 30 Under 30 list. Perna says Brikner has always stood out for her ability to be aware and analytical in the moment. She’s confident, with a pragmatic fearlessness.

“Natalya has always been and continues to be decisive,” Perna says. “She knows her preferences and doesn’t waste time on things that aren’t worthwhile.”

Brikner describes herself as hands-off, but still focused on personal and company growth. She likes to push people outside their comfort zones; she makes her employees learn skills and then present them at company seminars to further spread their knowledge.

Brikner says she’s never been afraid to ask for help. There were always advisors during her studies, plus students and entrepreneurs a few years ahead of her, who were willing to help her or back her up. She credits her coach and mentor Anna Rowley—a psychology consultant with a background at large tech companies—with helping her to settle into her role at Accion and keep her team motivated. She also received business and management advice from retired Raytheon CEO Bill Swanson.

Accion’s propulsion system is made to fit inside tiny satellites.

“I’ve found that people are usually extremely willing to help as long as you reach out and admit that you need it,” Brikner says. “People are very generous with their time.”

She started paying that back in high school, when she began dedicating a few hours a week to mentorship. Today she offers her services as a mentor to younger companies. She’s also focused on after-school STEM programs; Brikner says she is exposed to “sexism, and ageism, and other -isms every day,” and does her best to fix them by exposing both boys and girls to the sciences early. She also chooses mentors and advisors who support her values.

Accion’s propulsion system is about the size of a dime.

Accion isn’t Brikner’s first startup. As a graduate student she founded Asteria, which aimed to provide dedicated launches for small satellites based on a micro chemical rocket technology. Brikner says the founding team was a bit sloppy in its creation and decided to close the company before it raised any funds due to its shaky foundation. However, she believes the ideas behind the company still have merit and could someday be used by Accion.

Accion hopes to demonstrate the final version of its thrusters next year. After that, Brikner foresees them helping to dramatically cut the cost of building a satellite. Groups of farmers should soon be able to afford buying time on satellites that they can use to monitor the state of their fields, for instance. Or developing countries without space programs could launch satellites without great expense.

Accion is chasing down its goals with the help of 11 patents and $9.5 million in venture funding, plus a $3 million order from the Department of Defense. But it’s also stepping into the satellite industry at a time when other technologies are progressing rapidly. Mobile phones have pushed imaging and sensing technology to be smaller and smaller, making tiny satellites possible.

“We’re right on the cusp of what will become this huge growth in the small satellite sector,” Brikner says. “What we’re really focusing on is … making our customers’ satellites actually cheap enough to manufacture and launch so they can serve all these other exciting sectors that are popping up.”

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South Carolina Accidentally Sprayed Millions Of Bees With Pesticides

Millions of bees perished in South Carolina on Sunday morning, unintentionally felled by an effort to wipe out disease-carrying mosquitoes. For the first time, Dorchester County had sprayed the pesticide Naled from an airplane instead of by truck. The county says it warned residents that the plane would be coming with a newspaper announcement and Facebook post, but many beekeepers were taken unaware, and did not know to shield their hives. Their bees died on contact with the pesticide, leaving little piles of carcasses behind.

Several dozen people in South Carolina have acquired Zika while traveling, but there are no reports yet of the virus being transmitted via local mosquitoes.

[The Washington Post]

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Sponsored: Extreme Prosthetics

We are at Oak Hill so Livesay can put his new leg, which allows its wearers to participate in extreme sports like motocross, through its paces. That is, if the mud dries before another rainstorm rolls in.

This will be Livesay’s first time riding on a professional motocross track. But his love of the sport started much earlier.

MEET CHRIS LIVESAY

Livesay has been an athlete all his life. Growing up, he particularly enjoyed riding dirt bikes with his friends in the woods behind his house. Livesay continued his active lifestyle during his 22-year military career, serving as a Green Beret and doing tours in both Afghanistan and Iraq. In 2003, his left knee was shot during a firefight in Iraq. The injured leg was later amputated above the knee.

Once he went through rehabilitation, Livesay continued to participate in sports, from archery to golf to biathlon. “I probably accomplished more after my amputation than I ever did before,” he said.

Some activities, however, are extremely difficult without a biological knee and ankle. When Livesay skis, for example, he uses “outriggers” that allow him to balance on just one leg, which is less stable than two-legged skiing and also increases the risk of injury to the healthy leg. In order to ski with two legs, or to do extreme sports like wakeboarding or motocross, Livesay would need a more dynamic artificial leg.

These sports require participants to hold their knees and ankles at set angles, then to shift position by crouching lower or rising higher. This is beyond the ability of most prosthetic legs. An above-the-knee prosthetic leg designed for walking, for example, has a knee like an adjustable hinge. When the foot touches the ground, the knee locks to provide support, and when the walker takes a step, the knee swings. But the locked position doesn’t allow the wearer to significantly change the angle of the knee, and the swinging position doesn’t offer enough resistance for the leg to push up or bend down.

Unable to use his walking leg for motocross, Livesay hadn’t been on a bike in 16 years. That’s when he met Schultz.

THE BIODAPT LEG

In 2008, Mike “Monster” Schultz was a professional snowcross racer. Then his left leg was injured in an accident on the track. Like Livesay, he lost the leg above the knee.

Determined to get back on a bike, Schultz began tinkering with alternate prosthetics. He needed a knee that would offer resistance when he bent it, so he could rise into a standing position as his bike went over jumps, then lower himself back into the seat afterwards. That’s when he thought of the compressed air in shock absorbers.

After much trial and error, Schultz created a prosthetic knee called the MotoKnee and a foot called the VersaFoot, both of which incorporate shock absorbers like the ones found in mountain bikes. By adjusting the amount of compressed air in the shocks, Schultz can calibrate the joints to offer just the right amount of resistance. This allows wearers to customize the leg for different sports, and different comfort levels.

In the fully assembled leg, the VersaFoot connects to the MotoKnee, which connects to the socket that holds the wearer’s leg. The joints that connect each component can also be adjusted minutely to position the leg’s components at exactly the right angles. Below-the-knee amputees can also use Schultz’s innovation by attaching their leg sockets directly to the VersaFoot.

In addition, the plates for the VersaFoot can be swapped out to customize it for different applications. For riding motocross, attach a foot plate that will hitch onto the pedal. For skiing, use one that can lock onto a ski. And so on.

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An ESA Satellite Was Hit By Space Debris

A piece of space debris has dinged the European Space Agency’s Sentinel-1A satellite, the agency reported yesterday. The particle struck a solar panel on the satellite on August 23, causing a small loss in power and slightly changing its orbit and orientation.

When engineers activated Sentinel-1A’s onboard cameras, they found a damaged area roughly 16 inches wide. This actual particle was probably less than a tenth of an inch in size, but would have been traveling up to 24,000 miles per hour when it clipped the satellite. It’s not clear yet whether it was natural or debris leftover from human activities.

Fortunately, spacecraft are built to handle such impacts. Sentinel-1A, which is part of ESA’s Copernicus program to observe Earth’s environment, is operating normally, ESA said.

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Dyson’s New Canister Vacuum Will Always Right Itself After It Falls Over

Upright vacuums with the dust bin and motor all attached to the handle can be a bit heavy to push around, but canister vacs are notorious for constantly tipping as they roll across your floors. Possibly taking inspiration from those classic Fisher-Price Weebles toys that never fall over, Dyson has created a canister vacuum that can always right itself.

Read more…

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