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Articles by Emanuel Cavallaro
Technology for OEM Design Engineers
Navy demonstrates laser power beaming Captured by a special camera, a laser beam invisible to the naked eye shoots across the dark expanse of the David Taylor Model Basin at the Naval Surface Warfare Center in Bethesda, MD.
Technology for OEM Design Engineers
Navy demonstrates laser power beaming Captured by a special camera, a laser beam invisible to the naked eye shoots across the dark expanse of the David Taylor Model Basin at the Naval Surface Warfare Center in Bethesda, MD.
Researchers transmit energy with laser in ‘historic’ power-beaming demonstration
Early power beaming demonstrations took place in 1975, the first in Waltham, Massachusetts in the laboratories of Raytheon, and the second at the Goldstone Station of the Nasa Deep Space Network in California. Those were the two most important such demonstrations in history, Jaffe told his audience. “The third one you're going to see in a few minutes,” he said.
Nano-Particles Increase Fiber Laser’s Power and Improve Eye Safety
Getty Images and Jonathan Steffen Holmium-infused glass fibers are key to high-powered lasers. Emanuel Cavallaro | Jul 24, 2019 Researchers at the U.S. Naval Research Laboratory have devised a new way to build powerful lasers that are more efficient and safer for your eyes by using nano-particles. The particles are used to create “rare-earth-ion-doped fiber,” which is silica fiber infused with ions of the rare-earth element holmium. The material lets the laser get to 85% efficiency.
Researchers use nano-particles to increase power, improve eye safety of fiber lasers
Colin Baker, U.S. Naval Research Laboratory, holds a silica glass rod (optical preform) that will be pulled into an optical fiber suitable for production of an eye safer laser at U.S. NRL, DC on March 26, 2019. Credit: U.S. Navy/Jonathan Steffen Scientists at the U.S. Naval Research Laboratory have devised a new process for using nano-particles to build powerful lasers that are more efficient and safer for your eyes.
Is Burning Man Just a White-People Thing?
Last year I attended Burning Man for the first time, convinced by a friend who had returned from the event in 2015 bubbling over with excitement. “You have to come with me,” she told me and another (black) friend. “We’ll make our camp the blackest one out there.” She was only kind of joking. Months later, I arrived in Black Rock City, Nev., the temporary desert city built each year by Burning Man attendees, and I was greeted by several black “burners” who said how happy they were to see me.
KING STALLION DEMO GOES OFF WITHOUT A HITCH - airsoc.com
The powerful helicopter hovered overhead with its bulky payload, silhouetted against the morning sun, the culmination of several days of collaboration between engineers, cargo specialists and Marines. It was a crisp January morning at Naval Air Station Patuxent River, Maryland, when a small group of Marines and Navy civilians looked on as the CH-53K King Stallion demonstrated a key capability, lifting a 18,870-pound Joint Light Tactical Vehicle (JLTV) about 100 feet above the ground.
Meet the podcasters bringing Alcoholics Anonymous into the Digital Age
Andrew took his life on July 2, 2012. He was 26 years old. Later that month, his father, Mark, hosted the 372nd episode of “Recovered,” an unofficial Alcoholics Anonymous podcast. There isn’t an official one. His voice cracking with emotion, his sentences punctuated with pregnant pauses, Mark read from “The Big Book”, the fundamental text for AA, and played songs by Wilco and The Avett Brothers. For many years, Mark and Andrew had both struggled with addiction. Both had sought help.
Meet the Podcasters Bringing Alcoholics Anonymous Into the Digital Age
Andrew took his life on July 2, 2012. He was 26 years old. Later that month, his father, Mark, hosted the 372nd episode of “Recovered,” an unofficial Alcoholics Anonymous podcast. There isn’t an official one. His voice cracking with emotion, his sentences punctuated with pregnant pauses, Mark read from The Big Book, the fundamental text for AA, and played songs by Wilco and The Avett Brothers. For many years, Mark and Andrew had both struggled with addiction. Both had sought help.
Meet the Podcasters Bringing Alcoholics Anonymous Into the Digital Age
My analyst and I grew more intimately connected each week of treatment...but I never saw this indecent proposal coming. It’s the waning moments of my fourth session with a new therapist. I’m holding back — and she knows it. My entire body feels tense, not ideal for the setting. I try to relax, but the plush leather couch crumples under me when I shift, making the movements extraordinary. I’ve barely looked into my therapist’s blue eyes at all, and yet I think the hour has gone very well.
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