Lasers that put voices in your head

Via Physorg.com:

A recently unclassified report from the Pentagon from 1998 has revealed an investigation into using laser beams for a few intriguing potential methods of non-lethal torture. Some of the applications the report investigated include putting voices in people's heads, using lasers to trigger uncontrolled neuron firing, and slowly heating the human body to a point of feverish confusion - all from hundreds of meters away.

A US citizen requested access to the document, entitled "Bioeffects of Selected Non-Lethal Weapons," under the Freedom of Information Act a little over a year ago. There is no evidence that any of the technologies mentioned in the 10-year-old report have been developed since the time it was written.

The report explained several types of non-lethal laser applications, including microwave hearing, disrupted neural control, and microwave heating. For the first type, short pulses of RF energy (2450 MHz) can generate a pressure wave in solids and liquids. When exposed to pulsed RF energy, humans experience the immediate sensation of "microwave hearing" - sounds that may include buzzing, ticking, hissing, or knocking that originate within the head.

Studies with guinea pigs and cats suggest that the mechanism responsible for the phenomenon is thermoelastic expansion. Exposure to the RF pulses doesn´t cause any permanent effects, as all effects cease almost immediately after exposure ceases. As the report explains, tuning microwave hearing could enable communicating with individuals from a distance of up to several hundred meters.

"The phenomenon is tunable in that the characteristic sounds and intensities of those sounds depend on the characteristics of the RF energy as delivered," the report explains. "Because the frequency of the sound heard is dependent on the pulse characteristics of the RF energy, it seems possible that this technology could be developed to the point where words could be transmitted to be heard like the spoken word, except that it could only be heard within a person´s head. In one experiment, communication of the words from one to ten using ´speech modulated´ microwave energy was successfully demonstrated. Microphones next to the person experiencing the voice could not pick up these sounds. Additional development of this would open up a wide range of possibilities."

The report predicts that communicating at longer distances would be possible with larger equipment, while shorter range signals could be generated with portable equipment. Putting voices in people´s heads could cause what the report calls "psychologically devastating" effects. The technology might even allow for communicating with an individual hostage surrounded by captors, although this would require "extreme directional specificity."

With another weapon, electromagnetic pulses could be used to disrupt the brain´s functioning, although this technology was still in the theoretical stages at the time.

Under normal conditions, all brain structures function with specific rhythmic activity depending on incoming sensory information. Sometimes, the brain synchronizes neuronal activity in order to focus on a specific task, but the degree of neuronal synchronization is highly controlled. However, under certain conditions (such as physical stress or heat stroke), more areas of the brain can fire in a highly synchronized manner, and may begin firing uncontrollably.

The report describes a method for replicating this highly synchronized neuron firing across distances of several hundred meters. High-voltage (100 kV/m) electromagnetic pulses lasting for one nanosecond could trigger neurons to fire, disrupting the body´s controlled firing activity. Short-term effects may include loss of consciousness, muscle spasms, muscle weakness, and seizures lasting for a couple minutes. These high-voltage pulsed sources, which would require an estimated frequency of 15 Hz, exist today.

Another form of non-lethal torture described in the report is microwave heating. By raising the temperature of the body to 41°C (105.8°F), humans can experience sensations such as memory loss and disorientation, and exhibit reduced aggression. According to the report, humans can survive temperatures up to 42°C (107.6°F), at which time prolonged exposure can result in permanent brain damage or death.

The microwave heating technique was tested on a Rhesus monkey, where a 225 MHz beam caused an increase in the animal´s body temperature. Depending on the dosage level, the temperature increase occurred within a time of 15 to 30 minutes. After the beam was removed, the animal´s body temperature decreased back to normal. The report suggests the technique could be useful for controlling crowds or in negotiations.

While the investigations reveal intriguing techniques for non-lethal torture, the report does not mention plans for carrying out specific experiments or studies in the future.

Incapacitating Flashlight

Via ABC News:

Soon cops' flashlights might not only temporarily blind bad guys: they might also stop them in their tracks by disorienting them and making them nauseatingly sick. When suspects turn away or reel, cops or border-security agents can nab and handcuff them.

The flashlight, which is being developed for the Department of Homeland Security (DHS), uses a range finder to measure the distance to the target's eyes so that it can adjust the energy of the light to a level that won't cause permanent damage. Then it rapidly shoots out pulses of light from an array of ultrabright light emitting diodes (LEDs).

The flashes incapacitate a person in two different ways, says Robert Lieberman, CEO of Intelligent Optical Systems, based in Torrance, CA, which is making the device. The flashes temporarily blind a person, as any bright light would, and the light pulses, which quickly change both in color and duration, also cause what Lieberman calls psychophysical effects. These effects, whose effectiveness depends on the person, range from disorientation to vertigo to nausea, and they wear off in a few minutes.

It's not clear why the changing light pulses cause this effect, even though the effect has been well documented, Lieberman says. Helicopter pilots, for example, have been known to crash because they get disoriented by the choppy flashes of sunlight coming through the chopper's spinning blades.

The DHS is funding research on the new nonlethal weapon. According to a DHS press release, cops, border-security agents, and the National Guard could be armed with the new flashlight by 2010. The device is part of a larger effort to develop nonlethal weapons that can help law-enforcement and military personnel control crowds and riots, both in antiterrorist actions and in hostage situations.

The LED flashlight comes with a few caveats. The person being targeted could easily look away, or he or she might be wearing heavily tinted glasses. And the device would not be useful to, say, a security agent who is chasing a suspected attacker. "It is designed to be used on someone coming at you," Lieberman says. Also, the flashlight's effects are less during the day. But Lieberman notes that security agents will more likely face situations in which they need the device at night.

Glenn Shwaery, who researches nonlethal technology at the University of New Hampshire, says that authorities would use the flashlight, and other light-based "dazzler" technologies, to distract a suspect so that they can close in on him or her. "If you disorient or distract somebody and cause them to look away, then they can't focus on their task, which could be aiming a weapon at someone, or looking at a screen with sensitive information, or dialing a phone," he says.

There have been efforts to make dazzlers using lasers, but LEDs could be a safer choice. "Getting an eye-safe wavelength with a laser has been very difficult," Shwaery says. Because laser beams are energetic and focused, they could cause permanent damage to the eye. Shwaery adds that the new LED flashlight would be safe because it uses a range finder and adjusts the energy it throws out. "The ideal goal for nonlethal technologies is that they be scalable."

Researchers at Intelligent Optical Systems are now analyzing combinations of wavelengths and light intensities that have the strongest effect on people while remaining safe. They also need to make the device smaller and easier to carry. Right now, it's about 15 inches long and 4 inches wide. This fall, the team plans to test the flashlight extensively on people at Penn State University's Institute of Non-Lethal Defense Technology.

Holy batcapes! The age of the superhero suit is upon us

From The Sunday Herald:

ITS ROCK-HARD surface can take a full- on assault from a baseball bat, yet remains flexible enough to allow you to kick, leap and roll with perfect ease. Crafted from cutting-edge science, its unique molecular structure means that while providing armoured protection against crude concrete and even barbed wire, it remains light enough to allow you to run at high speed.

It sounds like the stuff of Batman comics - but the superhero suit is here.

Identified as a major breakthrough that could impact on every sector from the military to motor sports, the revolutionary shock-absorbent material d3o is taking the world by storm. Blessed with the kind of properties your average costumed crime fighter would kill for, it is being hailed as an invention with the potential to change entire industries and save real lives.

"It has been a battle against the odds to get this far. I've had to struggle against ignorance of the major players, work out of a back bedroom and beg, borrow and steal to keep development going, but I never doubted that it could be done," said inventor Richard Palmer.

"What we've developed is already being incorporated into everything from police body armour to protective sportswear, and the number of applications is almost infinite.

"At the moment a complete superhero suit made of our material would be a bit too heavy and far too expensive, but those challenges should be overcome within the next few years."

Speaking at an awards ceremony in London last week, where he was named the O2 X Entrepreneur of the Year 2007 in recognition of his achievement, Palmer told the Sunday Herald of a torturous invention process which saw him laughed at and driven to the edge of ruin.

In a nutshell, d3o is an advanced polymer with an intelligent molecular structure that flows with you as you move but, when shocked, locks together to become rigid enough to absorb impact energy. In its simplest form, it is like an automatic knee-pad that can be sown seamlessly into a pair of jeans.

Yet when former DuPont scientist Palmer approached the world's largest polymer companies with his invention, they said it was impossible. Despite his evidence, several key industry boffins refused to believe such a fabric could ever be successfully manufactured.

"I stood there telling them that I'd already done this, but they outright refused to entertain the possibility. Were they calling me a liar? A fool? I really don't know, but I was frustrated, furious and appalled by the lack of imagination that commercial science exhibited."

In 1999 Palmer sold his house and car, moved into a friend's spare bedroom and did it himself. Providing funding out of his own pocket, he kick-started the process in a garage lab, calling in academic help from friends where needed and pushing d3o to the point where it was ready for production.

Today the material they said couldn't happen is fast becoming a common component of cutting-edge protective equipment, with the d3o brand beginning to feature in a range of winter and motor sports products worldwide. It has been adopted enthusiastically by the likes of US Olympic ski team, the four-times Everest climber Kenton Cool and Olympic cyclist Craig McClean. Industry observers predict the miracle cloth could be earning annual global revenues of $2 billion within five years.

"The hardest part now is keeping focused. Every day brings fresh enquiries about potential new applications for d3o from airlines, police forces, and car manufacturers," said Palmer.

Presenting his award on Thursday, O2 director Simon Devonshire said: "Richard is an inspiration to anyone with a dream and the drive to realise it."

While he intends to continue developing and enhancing his revolutionary new material, Palmer's Brighton-based development lab team has already produced a range of other products. They include a rigid Frisbee that folds like a soft handkerchief when you catch it, and the world's first bullet-proof wallpaper, a lightweight protective covering that absorbs and contains the deadly shrapnel generated when a projectile pierces most buildings.

"I know it must sound like we're trying to build a Batlab here, but I make no apology for that," said Palmer. "This is what science is supposed to be; something that excites the imagination and inspires the mind."

Cellphone radiation killing honeybees?

From the Toronto Star:

Apr 16, 2007 06:15 PM

Canadian Press

A mysterious malady that is causing honeybees to disappear en masse from their hives in parts of North America and Europe may be linked to radiation from cellphones and other high-tech communications devices, a study by German researchers suggests.

While the theory has created a lot of buzz in the beekeeping world, apiarists say there could be any number of reasons why the bees are deserting their hives and presumably dying off in large numbers, including changing weather patterns and mite or other kinds of infestations.

What they do agree on is that whatever is causing the phenomenon, known as colony collapse disorder (CCD), it is playing havoc with the production of honey and other products from the hive – and threatening the growing of fruit and vegetable crops, which depend on bees for pollination.

The small study, led by Prof. Jochen Kuhn of Landau University, suggests that radiation from widely used cellphones may mess up the bees' homing abilities by interfering with the neurological mechanisms that govern learning and memory. It also appears to disrupt the insects' ability to communicate with each other.

To conduct the study, Kuhn placed cellphone handsets near hives and observed that radiation in the frequency range of 900 to 1800 megahertz caused the bees to avoid their homes.

But Brent Halsall, president of the Ontario Beekeepers' Association, said there are a lot of notions about what's causing bee colonies to dissolve like honey in a hot cup of tea.

High-frequency electromagnetic radiation from cellphones could be a factor, he acknowledged, but so could many other influences.

"Everybody's got their own little pet theory, but it's really hard to say," Halsall said from his home just south of Ottawa, where he keeps about 200 hives. "The bottom line for us as beekeepers is the industry in Ontario is already under a lot of stress because the bulk wholesale price of honey is below the cost of production."

There are about 10,000 beekeepers in Canada, operating a total of 600,000 honeybee colonies, says the Canadian Honey Council on its website. The majority are commercially operated, with Alberta, Saskatchewan and Manitoba producing 80 per cent of Canada's 154 million kilograms of honey annually.

It's been a tough winter for Ontario's 150 to 250 commercial apiarists, who have lost about 23,000 of their 76,000 hives. Those lost hives, which at full capacity in summer house about 60,000 bees apiece, represent the loss of about $5 million worth of the industrious insects, he said.

"I think weather might be one of the big factors this year," Halsall said. "We had a very warm winter until mid-January and then, bang, it got cold."

From what he's observed so far in his hives, Halsall believes he's lost about half of his bees.

In some of his colonies, eggs had been laid and it appeared adult bees had been trying to keep the new brood alive in the face of the sudden drop in temperature. "There was honey inches away, but they probably starved to death as they tried to protect the brood."

Still, he thinks that whatever the causes of honeybee deaths in Ontario, and likely in the rest of Canada, they are different from those decimating hives in the United States.

In at least 24 states, bees have been dying in droves, with some commercial apiarists reporting huge losses, the American Beekeeping Federation reports on its website. "One lost 11,000 of his 13,000 colonies; another 700 of 900, another 2,500 of 3,500, another virtually all of his 10,000."

U.S. beekeepers estimate that more than one-quarter of their 2.4 billion colonies have been affected by CCD.

The American bee population had already been under threat in recent years from the varroa mite, a tiny parasite that devastated many keepers' hives and destroyed most wild honey bee populations.

While the varroa mite is also a problem in Canada, treatments to rid it from hives differ here compared with south of the border, and Halsall said his hives were virtually mite-free by the time winter arrived. Still, he and some other keepers have had huge losses in their hives.

"The bottom line is: We've got a problem in Ontario. There's a lot less bees than we used to have and we don't know why."

"It could be many different factors that are causing the bees to die or all of them together are enough to cause the problem and we just have the right set of wrong circumstances coming together."

The phrase of the day is "Feraliminal Lycanthropizer"

Great article on the Fortean Times website about sonic weapons -- loads of interesting material pertaining to military applications, ghost hunting and behavior modification, but I was struck by this passage in particular:

"The link between periods of insanity and exposure to specific infrasound frequencies forms the basis for the ‘Feraliminal Lycanthropizer’, a device claimed to stimulate atavistic animality, sexual excitement, and a loss of inhibitions in its target. As described in an essay published in Dainty Viscera magazine, the Feraliminal Lycanthropizer creates two infrasound frequencies – 3Hz and 9Hz – which, combined, generate a lower, third frequency of 0.56Hz. The machine also uses a combination of four subliminal, looped, audio tape recordings – playing both forwards and backwards – outside the normal audible pitch."

Freaky.

Soft Body Armour

From Wired News:

Think of things that can protect you against knives and bullets. Kevlar? Yes. Steel plates? Sure. Pancake syrup?! Probably not high on your list. Well, prison guards and other uniformed types may soon be armored with viscous stuff that would make Mrs. Butterworth proud.

The material, a mix of liquid polymers and silica (tiny sandlike particles), is called shear thickening fluid. Left alone, it’s a free-flowing goo; when something hits it at high velocity, the bits cluster into a rigid barrier. After the force of impact dissipates, it reverts to a gel. Protective-gear maker Armor Holdings is integrating STF into bullet-proof vests. That means fewer layers of anti-ballistic fabric, making them lighter, more comfortable, and cheaper. The company aims to start selling to prisons later this year. Other perilous pursuits will soon benefit as well: British startup d3o Lab is rolling out STF-enhanced ski wear, skateboard shoes, and goalie gloves. Whether you’re in Sun Valley or San Quentin, Mrs. Butterworth’s got your back.