Mar 28, 2020
"𝚒 𝚑𝚊𝚟𝚎 𝚊 𝚙𝚊𝚛𝚝𝚗𝚎𝚛 𝚒𝚗 𝚌𝚛𝚒𝚖𝚎"
-tuck everlasting, partner in crime
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"𝚒 𝚑𝚊𝚟𝚎 𝚊 𝚙𝚊𝚛𝚝𝚗𝚎𝚛 𝚒𝚗 𝚌𝚛𝚒𝚖𝚎"
-tuck everlasting, partner in crime
An Arizona teen replaced an aircraft wing’s leading-edge flap with a spinning cylinder. This could increase lift, reduce drag and help prevent some aircraft stalls and spins, his data suggest.
Washington, D.C. — A device that harnesses the same aerodynamic effect that makes a curveball swerve might one day boost aircraft safety. How? Such a device could prevent some aircraft stalls and spins. Such instabilities underlie one in every 10 small-plane accidents in the United States, notes Rylan Gardner.
The 14-year-old lives in Mesa, Ariz., where he attends 9th grade at Franklin Junior High School. He designed such a device as a science fair project.
Air speeds up as it flows over the upper surface of an aircraft’s wing. That faster flow lowers the air pressure. It’s that pressure difference between the upper and lower surfaces of a wing that generates the lift that keeps an aircraft aloft.
But there’s another way to generate lift, he notes. This alternative is known as the Magnus effect. It develops when air flows past a rotating sphere or cylinder, Rylan explains.
Rylan Gardner, 14, of Mesa, Ariz., displays the device he used to control a spinning cylinder during wind-tunnel tests of his proposed aircraft-safety system.
CREDIT: Linda Doane/SSP
On the side of the sphere or cylinder that’s rotating into the wind, the air slows down. Here, air pressure increases. On the side where the surface rotates away from the wind, air speeds up. There, air pressure drops. The difference in pressure between the two sides creates a push against the cylinder or sphere. This generates lift.
Rylan explored this idea in a science fair project last year. That research qualified the teen to compete here, late last month, in the ninth annual Broadcom MASTERS competition.
MASTERS stands for Math, Applied Science, Technology and Engineering for Rising Stars. This program for middle-school researchers was created by Society for Science & the Public (which publishes Science News for Students). The Broadcom Foundation, headquartered in Irvine, Calif., sponsors the event, which brings together 30 finalists each year to tackle team challenges.
Last month, Rylan showcased his Magnus-effect research at the meeting.
Here’s an explanation — and demonstration — of the Magnus effect in action.
CREDIT:Veritasium/YouTube
Stop stalling!
Aircraft stalls and spins account for not quite one in every eight fatal accidents in small planes, the teen notes. Even experienced pilots can have trouble recovering from such stalls and spins. But replacing the leading edge of an aircraft’s wing with a rotating cylinder might help, he says.
For example, one dangerous event is known as a deep stall. It occurs when the airflow from a plane’s wings washes directly over the plane’s tail. This can render the control surfaces on the tail useless. But if a cylinder embedded in an aircraft’s leading edge were rotating with backspin (where the front of the cylinder constantly rotates upward), that would change where the wing generates lift, Rylan explains. This would create lift farther back than normal on the top of the wing. And on the bottom surface, areas of high pressure that push upward also would shift toward the rear of the wing. Together, those changes would cause the airplane to pitch forward. That, in turn, should cause airflow from the wing to shift off of the aircraft’s tail, ending the deep stall.
“Potentially, this system could reduce crashes and improve the safety of modern air travel,” Rylan says.
Broadcom MASTERS awards first- and second-place prizes in each of the STEM categories. (STEM stands for Science, Technology, Engineering and Mathematics.) For his qualifying project, Rylan nabbed the first-place award — worth $3,500 — in Engineering.
In most student science competitions, the majority of the finalists’ scores are based on qualifying science-fair projects. That’s different from how it works at Broadcom MASTERS. Here, roughly four-fifths of the finalists’ scores are based on both their creativity and teamwork in helping to solve on-the-spot research challenges.
"With sales of smartphones and personal computers cooling, Nvidia, Intel, AMD and a raft of startups are crafting new processors to tap into a broader AI market that is growing 50% a year.
Android devices can be fatally hacked by malicious Wi-Fi networks
The vulnerability resides in a widely used Wi-Fi chipset manufactured by Broadcom and used in both iOS and Android devices. Apple patched the vulnerability with Monday's release of iOS 10.3.1. "An attacker within range may be able to execute arbitrary code on the Wi-Fi chip," Apple's accompanying advisory warned. In a highly detailed blog post published Tuesday, the Google Project Zero researcher who discovered the flaw said it allowed the execution of malicious code on a fully updated 6P "by Wi-Fi proximity alone, requiring no user interaction."
Alaina Gassler took home the $25,000 top prize at the Broadcom MASTERS teen science competition. Her qualifying project could boost vehicle safety by eliminating blind spots for car drivers.
WASHINGTON, D.C. — On a weekend where the nation’s capital was focused on hosting its first World Series games in seven decades, 30 young researchers from across the nation were on deck for a hard-hitting competition of their own. In a sense, all were winners already. Each had, after all, beat out hundreds of others for the chance to face off in team play. But only one contestant — Alaina Gassler, 14 — would take home the top prize: an educational award worth $25,000. Her award was one of more than a dozen announced at an evening gala on October 29.
Alaina was one of 30 finalists from 13 states who competed in the ninth annual Broadcom MASTERS competition. MASTERS stands for Math, Applied Science, Technology and Engineering for Rising Stars. The program was created by Society for Science & the Public, which publishes Science News for Students.
Alaina and the other finalists had to be in sixth, seventh or eighth grade when they competed in a local or regional science fair. To qualify for Broadcom MASTERS, their research had to have been judged within the top 10 percent of all projects at that fair. Those projects all fell within the fields of science, technology, engineering or mathematics (STEM). Alaina had developed a novel system aimed at boosting auto safety.
But those qualifying projects would only account for 20 percent or so of a finalist’s score at this week’s event. The rest of the score would come from how an individual was judged while working within one of the six teams to solve a spectrum of assigned, on-the-spot science and engineering challenges.
“Congratulations to Alaina, whose project has the potential to decrease the number of automobile accidents by reducing blind spots,” says Maya Ajmera. She is president of Society for Science and the Public.
Alaina goes to school in West Grove, Penn. “I didn’t think I’d win an award this big,” she enthused at the gala. “I was happy just getting the small medal that everyone got at the beginning of the night!” she added.
The Samueli Foundation provided Alaina’s winnings. This non-profit organization was created by Broadcom founder Henry Samueli and is based in Newport Beach, Calif.
Fifteen of the finalists took home major awards or the funds to attend a science camp of their choice. For the first time, this year, 60 percent of the finalists were female.
"With sales of smartphones and personal computers cooling, Nvidia, Intel, AMD and a raft of startups are crafting new processors to tap into a broader AI market that is growing 50% a year.
Applied Materials, the leader in materials engineering for the semiconductor industry, announced that Broadcom will join Applied’s EPIC plat
Applied Materials has announced Broadcom as an EPIC Innovation Partner, highlighting a shared commitment to advancing next-generation chip technologies, AI infrastructure, and semiconductor manufacturing excellence.
This collaboration reflects the growing focus on accelerating innovation across high-performance computing, connectivity, and advanced electronics solutions powering the future of technology.
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