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Showing posts with label technology. Show all posts
Showing posts with label technology. Show all posts

Thursday, May 12, 2011

Levitating train flies like a plane, no magnets involved

Levitating train flies like a plane, no magnets involved
Prototype of the proposed levitating Aero Train.

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Monday, May 10, 2010

5 real Iron Man prototypes in the making

5 real Iron Man prototypes in the making

Iron Man 2 hits theaters today, telling a tale about a man in a suit of armor who flies around like a jet and shoots energy bolts from his palms. In the real world, we're not quite there yet, but you may be surprised just how close we are to an Iron Man of our own.

Powered exoskeletons are mostly sought after to enable the soldiers of tomorrow, who will be able to lift hundreds of pounds and run for miles without breaking a sweat. Beyond that, though, they could save lives in the wake of a terrible disaster, or even perform smaller miracles such as helping the paralyzed walk again.

Continue reading to check out five exoskeletons that do all that and more.



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1. HULC

Creator: Lockheed Martin

Powered by: Four lithium ion batteries, 48-hour operation

What it does: Officially the Human Universal Load Carrier, Lockheed Martin's HULC system would allow a soldier to travel 10 miles an hour, even while carrying a 200-pound load. The best part? He would barely feel the excess weight.

The future: Soldiers in the future will be able to carry more complicated and powerful equipment without having to feel the added strain. Lockheed envisions soldiers being able to carry more than just weapons in that they could field more complex electronics to increase their awareness in the field.




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2. HAL-5

Creator: Tsukuba University (Japan)

Powered by: Waist-mounted 100-volt battery pack

What it does: The Hybrid Assistive Limb, or HAL-5, distinguishes itself from almost every other exoskeleton in that it's available now and currently seeing limited use. It uses electrodes resting on the operator's skin to analyze muscle movements, and then enhances the wearer's strength by up to five times what it'd normally be.

The future: A company called Cyberdyne is mass-producing the suits, with early prototypes alreadyavailable for rental in Japan. The HAL-5 isn't designed for the battlefield. Instead, it was made with Japan's elderly-heavy workforce in mind, as laborers would be able to continue to perform with robotic assistance despite their age.




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3. Trojan T Series

Creator: Troy Hurtubise

Powered by: Helmet-mounted, solar-powered battery packs

What it does: Troy Hurtubise's Trojan armor isn't a fully powered suit. Instead, battery packs on the helmet enable the five-way radio, a laser pointer for range-finding and spotting and even an air conditioner. It was popularly referred to as "Halo armor" thanks to its resemblance to the Spartan soldiers in the video game of the same name, and drew criticism for being impractical, despite Hurtubise's claims to its protective capability.

The future: Undeterred, Hurtubise went on to create a second suit, not quite as flamboyant as the Trojan T series (pictured above with a shield), streamlining the suit and making it lighter. The Trojan suits represent his vision of the future soldier, who is more like a walking tank — something that the other exoskeletons on this list could make possible, as they'd allow a trooper to wield such heavy armor.




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4. XOS

Creator: Sarcos/Raytheon

Powered by: External power supply via cable

What it does: The XOS is similar to the HULC in that it allows the wearer to lift upwards of 200 pounds without feeling any strain, thanks to hydraulic assistance and sensors attached to the hands and feet. (The XOS test pilot is said to have been able to perform over 500 reps at that weight, and still feel minimal strain.) Unlike the HULC, the XOS is tethered, meaning it has no onboard power supply. That allows its designers to continually build a more powerful suit without limiting it based on power concerns, though the wearer can't travel very far.

The future: The XOS is already one of the most advanced powered suits (if not the most advanced), though right now that's largely thanks to its tethered power source. A future soldier would not only enjoy increased strength and endurance, but also something just as important: reaction time. The researchers behind the XOS designed it to be responsive down to the second, without any lag, acting like a second skin.




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5. Lifesuit (Prototype 14)

Creator: Monty Reed

Powered by: Compressed air allows the suit to move 2.5 miles per hour

What it does: To understand the Lifesuit, you have to know a little about Monty Reed. Once an Army Ranger, he suffered a severe back injury after a parachute crash and was told he'd never walk again. Now he's walking after extensive rehab, but he won't forget that experience — and so the idea of the Lifesuit was born. The latest iteration, Prototype 14 (or LS14), uses a system of compressed air that can automate the process as well as allow the wearer to pick up objects as heavy as 200 pounds, just like the XOS and the HULC.

The future: Unlike the XOS and the HULC, the Lifesuit isn't being produced with the military in mind. Instead, Monty Reed is looking to replace the wheelchair. His exoskeleton would let those who have lost the ability to walk or have been partially paralyzed get their mobility back. Three variants of the Lifesuit are planned, including the Home Suit, which would be like a walking wheelchair; the Rescue Suit, which would aid workers during disaster recovery, allowing them to lift and clear rubble with ease; and the Rehab Suit, which helps everyone from the elderly and paraplegics train their bodies.

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Sunday, August 16, 2009

Real Transformer... I wish I was a kid now. They have some fun toys


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New flat flexible speakers might even help you catch planes & trains


A groundbreaking new loudspeaker, less than 0.25mm thick, has been developed by University of Warwick engineers, it's flat, flexible, could be hung on a wall like a picture, and its particular method of sound generation could make public announcements in places like passenger terminals clearer, crisper, and easier to hear. Lightweight and inexpensive to manufacture, the speakers are slim and flexible: they could be concealed inside ceiling tiles or car interiors, or printed with a design and hung on the wall like a picture.

Pioneered by University of Warwick spin-out company, Warwick Audio Technologies' the 'Flat, Flexible Loudspeaker' (FFL) is ideal for public spaces where it delivers planar directional sound waves, which project further than sound from conventional speakers.

Steve Couchman, CEO of Warwick Audio Technologies, believes it could entirely replace the speakers currently used in homes and in cars, as well as in public address systems used in passenger terminals and shopping centres.

He says: "We believe this is a truly innovative technology. Its size and flexibility means it can be used in all sorts of areas where space is at a premium. Audio visual companies are investigating its use as point of sale posters for smart audio messaging and car manufacturers are particularly interested in it for its light weight and thinness, which means it can be incorporated into the headlining of cars, rather than lower down in the interior."

All speakers work by converting an electric signal into sound. Usually, the signal is used to generate a varying magnetic field, which in turn vibrates a mechanical cone, so producing the sound.
Warwick Audio Technology's FFL technology is a carefully designed assembly of thin, conducting and insulating, materials resulting in the development of a flexible laminate, which when excited by an electrical signal will vibrate and produce sound.

The speaker laminate operates as a perfect piston resonator. The entire diaphragm therefore radiates in phase, forming an area source. The wave front emitted by the vibrating surface is phase coherent, producing a plane wave with very high directivity and very accurate sound imaging.

"Another great application would be in PA systems for public spaces," says Steve. "The sound produced by FFLs can be directed straight at its intended audience. The sound volume and quality does not deteriorate as it does in conventional speakers, which means that public announcements in passenger terminals, for example, could be clearer, crisper, and easier to hear."



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Tuesday, August 11, 2009

Fountain of Youth in a Wine Rx?


iStock

60 Minutes January 25, 2009

The Studies

“Resveratrol Improves Health and Survival of Mice on a High-Calorie Diet,” Nature, 2009

The Hype

Morley Safer interviewed the founders of Sirtris, a company planning a pill form of resveratrol, a compound found in red wine. He ended up doing a lot of cheerleading. Among the untested claims the show let slide: that a pill could forestall diseases in our 50s, 60s and 70s, and that it works using the body’s natural defenses against Alzheimer’s, cancer and diabetes.

The Subtler Truth

Though it’s often a paragon of journalistic rigor, 60 Minutes has a record of falling short on health issues. Its breathless 13-minute coverage of resveratrol, which has been tested mostly on mice and yeast, presented no opposing view and was tempered only by a single (and damning) statistic: “9 out of 10 drugs that look good in mice ultimately fail in human trials.” Says Gary Schwitzer, a professor at the University of Minnesota and founder of journalism watchdog site HealthNewsReview.org, “The job they’ve done on health and medical-science stories makes me watch the rest of their stories with greater scrutiny. Sometimes journalists become enamored and fawning about the progress of science. They check their skepticism at the door.”

The Bottom Line

There seems to be some sort of connection between heart health and red wine, but it’s not clear that resveratrol is why. And considering that plenty of animal tests don’t credit resveratrol, one has to wonder at all the puffery. When it comes to surprising health claims, even the much-vaunted 60 Minutes needs to be viewed with a critical eye.

Conclusion

I think that even if it doesn't do anything maybe if I believe in it I will have a placebo affect. Hey its worth a try. If you want to buy the supplement they have it at GNC or Amazon and its not expensive.



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