Using Magnets and Stink Bombs to Keep Sharks at Bay

In 2005, Eric Stroud, the managing partner of Shark Defense, a New Jersey company that specializes in shark-repelling technologies, happened to be carrying a rare-earth magnet as he passed a tank full of sharks. The sharks fled, and Stroud took note. After further tests, Stroud and his colleagues found that sharks that came within 20 inches of rare-earth magnets similar to the one he had been carrying would consistently swim away.

The discovery earned Shark Defense $25,000 from the World Wildlife Fund’s annual International Smart Gear Competition, which rewards inventors who develop new methods to keep animals from getting tangled in commercial fishing lines. Shark Defense is now investigating ways to embed the metals in nets. And Stroud says the same metals, worn as an anklet, could act as a personal shark deterrent.

One Camera With 40,000 Lenses Helps Prevent Blurry Images

For all its virtues, digital photography has yet to correct one age-old weakness: If you blow the focus, you’ve most likely lost the shot. An emerging lens system, known as plenoptics, will change that. The product of more than a decade of research from Adobe and institutions including Stanford and Indiana universities, plenoptic cameras capture multiple focal settings in one snap, so users can refocus after the fact. The German-made Raytrix R11 is the first mass-produced plenoptic camera available in the U.S.

New Alloy Can Convert Heat Directly Into Electricity

Ni45Co5Mn40Sn10 — undergoes a reversible phase transformation, in which one type of solid turns into another type of solid when the temperature changes, according to a news release from the University of Minnesota. Specifically, the alloy goes from being non-magnetic to highly magnetized. The temperature only needs to be raised a small amount for this to happen.

A process called hysteresis causes some of the heat energy to be lost, but this new alloy has a low hysteresis, the researchers say. Because of this, it could be used to convert waste heat energy into large amounts of electricity.

One obvious use for this material would be in the exhaust pipes of vehicles. Several automakers are already working on heat transfer devices that can convert a car’s hot exhaust into usable electricity; General Motors is using alloys called skutterudites, which are cobalt-arsenide materials doped with rare earths.

Humans Might Be Able to See the Earth's Magnetic Field, Like Birds Do

Without realizing it, humans might be able to innately detect Earth’s magnetic field, thanks to a compound found in our eyes. Or we may have been able to do so some time in the past.

Plenty of animals are known to be able to perceive geomagnetism, using it to navigate and even to hunt their prey. Proteins called cryptochromes, which exist throughout the plant and animal kingdoms, lend several species this ability. The proteins are related to the circadian rhythms of animals and plants, and recent studies have shown it apparently enables light to serve as a geomagnetic locator.

Electrons in cryptochrome molecules come in entangled pairs, and the Earth's magnetic field may cause one of the electrons to wobble. A chemical reaction in response to the wayward electron's altered spin lets birds see magnetic fields in color, according to a theory published last summer.

But as far as researchers thought, cryptochrome doesn’t do much to help us orient ourselves, hence why people have to rely on celestial objects, known landmarks and GPS to figure out which way is north.

But a new study suggests the protein could actually express itself in the retina to help detect geomagnetism. Neuroscientists at the University of Massachusetts took a human version of cryptochrome 2, and inserted it into fruit flies that lacked their own version. The fruit flies’ magnetic perception was restored, as Wired Sciencereports.

It may not work this way anymore — there are not exactly voluminous reports of humans navigating simply by peering at magnetic field lines — but it could have proved valuable in helping our earliest ancestors navigate, according to researchers who spoke to Wired. Maybe someday researchers will figure out how to exploit this ability once again, and you won’t need that GPS function in your smartphone after all.

The study is reported in today’s issue of Nature Communications.

Haptic Vibrating Belts Guide U.S. Soldiers Through the Darkness

Soldiers already have plenty of nighttime tech to help them navigate battlefields, but goggles can be clunky and obtrusive, and backlit GPS displays can betray a lurking warfighter’s position. A new haptic interface developed by Army researchers will help soldiers feel their way through the darkness instead.

Point/Counterpoint: Internet IDs Are a Terrible Idea | Popular Science

They go by many names—trusted identities, ID ecosystems, Internet driver’s licenses—but the basic idea is always the same: Create a single online credential system that somehow increases accountability, combats fraud and identity theft, and helps deter cybercrime. Over the years we’ve seen many of these schemes trotted out in the private sector only to fail time and again. And for good reason. These plans are not only impractical, they also ignore history, confuse the primary threats we face online, and, worst of all, have the potential to do infinitely more harm than good.

To see the other side of this argument, click here to read the "point" in our point/counterpoint.

Let’s start with one of the more recent plans (though not the most recent--that honor belongs to a new suggestion from the Danish police that anonymity be banned online entirely): The Obama Administration’s federated Internet identity system. Also known as the National Strategies for Trusted Identities in Cyberspace (.pdf),” or simply “N-Stick,” this government coordinated proposal again aims to reduce online fraud and identity theft while at the same time grease the wheels of e-commerce.

N-Stick

On the surface there’s actually plenty to admire about the initiative. Not only does it recognize that we’ve become increasingly reliant, both from an economic and personal standpoint, on the Web, but it also promises to takes steps toward creating “an online environment where individuals, organizations, services, and devices can trust each other”—all in a way that doesn’t divulge any personal information, mind you. The Administration was even savvy enough to recognize that any such government-run program would be inherently suspect so it subsequently made the NSTIC a purely “opt-in” system to be executed by the private sector and led by the Commerce Department.

And if all that sounds too good to be true, that’s because it is. Look at bit deeper and the NSTIC is actually nothing more than a cyber-utopian pipe dream. Behind all the good intentions, lofty goals, and reassurances of privacy, the plan would, at best, give citizens a decidedly false sense of security, privacy, and control. At worst, it would create a daunting array of new privacy nightmares to contend with.

Here’s the problem—or rather problems. As is generally the case with online ID schemes, the actual execution of the NSTIC goals falls under the we’ll-figure-it-out-as-we-go approach. Questions surrounding technical guarantees, government power over ID issuance, nationality, anonymity, and even incentives and business models all remain unanswered. Like any plan lacking necessary specifics, it tends to raise far more questions than it answers. Yes, these initiatives are admittedly difficult to implement (especially considering we’re dealing with the sprawling Wild West that is the Internet), but moving forward without tackling regulatory policy and procedural safeguards is irresponsible and, frankly, a waste of time. Given that similar schemes have been tried before and failed for exactly the same reasons, this should be abundantly clear to the government by now. And what exactly makes the Obama Administration think NSTIC will succeed where companies like Microsoft and Google have already failed? Yeah, that’s not really clear either.

Jay Stanley of the ACLU’s Speech, Privacy and Technology Program, succinctly sums up the problem thusly: “[The NSTIC] is basically a strategy, not a plan.”

What Are the Actual Risks?

Similarly, the creators of this strategy seem to display a profound misunderstanding of the primary risks we actually face online. In this case, the underlying assumption is that most of our Internet woes are due to a lack of sufficient authentication. If you ask Columbia computer science professor Steve Bellovin, this is demonstrably false. And the man who helped create USENETshould probably know. While it’s true that password based security has plenty of faults, the biggest problem we continually face was (and is) buggy code, says Bellovin. Indeed, as he noted in his original response to the government’s first NSTIC draft, “all the authentication in the world won’t stop a bad guy who goes around an authentication system.”

This can (and has) been done in any number of ways: Hackers can find bugs to exploit before authentication is performed. They can also find bugs within the actual authentication system. The simple fact is that Internet is chock full of buggy network servers. In fact, buggy code is a part of all large computer programs and the direct result of software complexity. Anyone who’s ever dealt with malware should know this.

Also dubious is the notion that NSTIC will actually protect our online anonymity any more than the systems we currently have in place. While the government touts the advantages of using “trusted third parties,” and “unlinkable” certificates that won’t divulge personal info, at the end of the day, “someone at some point is still verifying and authenticating that you are who you say you are,” says Lee Tien, a senior staff attorney for Electronic Frontier Foundation.

“So the question becomes, what exactly are those verifying authorities doing with your data?” Could they be compelled to hand it over to the government or police? And if we’re talking third parties here, wouldn’t there eventually be some push to monetize all that valuable info? How else will the companies involved actually make money? Again, the bottom line is that these credentials will still live somewhere on the Internet, which in turn means that whoever hosts them (even if there is no centralized database) will also have the ability to de-anonymize the ID and link it to a person. That, my friends, is not anonymity.

Evolution machine: Genetic engineering on fast forward

The basic idea is hardly original; various forms of directed evolution are already used to design things as diverse as proteins and boats. Church's group, however, has developed a machine for "evolving" entire organisms - and it works at an unprecedented scale and speed. The system has the potential to add, change or switch off thousands of genes at a time - Church calls this "multiplexing" - and it can generate billions of new strains in days.

Where can I purchase some Hydrophilic Spheres?

a.k.a. polyacrylamide polymer http://www.theartisticshop.com/water%20polymer%20crystals.htm

Growing Spheres Item GB-700

Hydrophilic water gel Growing Spheres are made from a polyacrylamide polymer with a strong affinity for water. Chemists call this property hydrophilic. A hydrophilic substance is one that takes up water easily – just as a dry sponge might if dropped into a pail of water. If placed into water, Growing Spheres will absorb water and swell to several hundred times their original size. Because the amount of water Growing Spheres will absorb depends on the salt content of the water, we suggest you use pure clean water from the tap.









Why the "Norway spiral" has the Russian government spooked

The Rosetta Project Is Preserving Every Language Ever Spoken

The Long Now Foundation--currently breaking ground in Texas at the future site of its first monument-sized 10,000-year clock--is pursuing several programs in addition to the clock. One of these, the Rosetta Project, takes as its daunting mission the documentation of every human language currently in use; some 7,000 in total, the majority of which are in danger of disappearing without a trace. Directing this ambitious venture is Laura Welcher, a linguist who has specialized in building archival resources for indigenous North American languages. They're documenting the world's languages and storing them on one small disc that currently contains 13,000 microetched pages of word lists from 1,500 languages.

2011 IDEA Winners

02011ideago04.jpg()led's on screen

A Giant, Man-Made Island Could Act as a Battery for Wind Power

green-power-island-wind-energy-battery.jpg

Top 60 Best Street Art

Design -10 / 59 59 Amazing Street ArtDesign -41 / 59 59 Amazing Street ArtDesign -22 / 59 59 Amazing Street ArtDesign -21 / 59 59 Amazing Street ArtDesign -20 / 59 59 Amazing Street ArtDesign -16 / 59 59 Amazing Street ArtDesign -15 / 59 59 Amazing Street ArtDesign -11 / 59 59 Amazing Street ArtDesign -9 / 59 59 Amazing Street ArtDesign -3 / 59 59 Amazing Street ArtDesign -8 / 59 59 Amazing Street Art

Aircraft punch holes in clouds, leave snow in their wake

We've seen recently that air travel can have an oversized impact on the atmosphere, at least relative to emission of things like greenhouse gasses, because they seed clouds that can persist for hours. Now, researchers have taken a detailed look at what happens when aircraft fly through clouds that already exist. Under many circumstances, it turns out that the aircraft have the opposite effect, causing pressure changes that trigger the formation of large holes in the cloud, with the missing water falling out as snow.

Ask the Architect: Neil M. Denari

Mac Distribution by State

sshot-1

Leverage Freedom Chair

Off the Grid Billboard Powered By What it Advertises- Oranges

en design, eco design, sustainable design, off the grid,DDB Advertising, Orange-powered billboard, fruit power, Tropicana, Tropicana billboard, electrochemical orange power, alternative energy

Red wine: Exercise in a bottle?

New research in the FASEB Journal suggests that a daily intake of resveratrol prevents the ill effects of simulated weightlessness on muscle and bone metabolism

Consumer Reports Confirms In-N-Out Burger Is The Best And McDonald's The Worst

8 Amazing Animal Migrations

Entering the Enchanted Realm highly pressurized glacier ice that contains almost no air bubbles. Thus it absorbs the visible light despite the scattered shortest blue fraction, giving it its distinct deep blue waved appearance.

Why the "Norway spiral" has the Russian government spooked

James Oberg at IEEE Spectrum has been following the "disaster-ridden" Russian missile program that lead to last month's spectacular spiral lights display over Norway. He offers some insight into the fascinating political story going on behind the scenes.

Strange - in the sky

Atmospheric flare from a minuteman III ICBM missile from Kanoa on Vimeo.

This amazing video was shot at an astronomical observatory in Hawaii. It's real, according to Bad Astronomy blogger Phil Plait. In fact, there's another camera that captures the same phenomenon from a different angle. So the question becomes, "What the hell is that?" Plait details a possible explanation, worked out by members of the Astronomy Picture of the Dayforum.

... what leaps out is that the expanding halo is limb-brightened, like a soap bubble, and fades with time. That strongly points toward something like a sudden impulse of energy and rapid expansion of material, like an explosion of some kind. Note that the ring itself appears to be moving, as if whatever caused it was moving rapidly as well.

Asterix board member calvin 737 was the first to suggest it might be related to a Minuteman III missile launch around that time. As more people on the forum dug into it, the timing was found to be right. The missile launched from Vandenberg Air Force Base (in California) at 03:35 Hawaii time, just minutes before the halo was seen. I noticed the stars of Cassiopeia are visible in the webcam, so the view was to the northeast, which is the right direction to see the missile as well. OK, the timing and direction are perfect, so the rocket is clearly the culprit... but how, exactly?

[An idea posted by board member neufer] was that this was from a detonation charge in the missile's third stage. There are ports, openings in the sides of the third stage. Those ports are sealed for the flight until the right time, when they're blown open by explosive charges. This allows the fuel to escape very rapidly, extinguishing the thrust at a precise time to allow for accurate targeting of the warhead. At this point, the missile is above most of the Earth's atmosphere, essentially in space. So when that gas suddenly released from the stage expands, it blows away from the missile in a sphere. Not only that, the release is so rapid it would expand like a spherical shell -- which would look like a ring from the ground (the same way a soap bubble looks like a ring). And not only that, but the expanding gas would be moving very rapidly relative to the ground since the missile would've been moving rapidly at this point in the flight.

In his original post, Plait also explains why he thinks this is the true explanation, and why several alternate ideas don't hold up.

LifeEdited tiny design contest

SEE ALL IDEAS

Google Helps Journalists Make Data More Informative, And Beautiful

CityHub Plug-In Pop-Up Modular Hotel Is A Better Capsule

cityhub-both.jpg

Corporate or Crazy?

Infographic Of The Day: The Alchemy Behind Facebook And YouTube

user-generated
But even more amazing is how much this all is actually worth, when you factor in the ad rates that are being charged by companies such as Facebook and YouTube. One of the most amusing facts is that Facebook changes their ad rates based on your relationship status. If you're single, you're worth $1.24 per ad thousand impressions (a so-called CPM); if you're in a relationship, that drops to $1.14. Men, meanwhile, are worth $1.16 compared to $1.05 for women:
UGC-2

10 Things To Do With Hosta Leaves

2011-6-29-hosta.jpg
Alesis iO Dock turns your iPad into a powerful recording device
Alesis iO Dock

EADS Rethinks the Way Planes Fly With New All-Electric Aircraft Design

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More Than 2,000 Businesses Registered At This Wyoming House

WCS helps other businesses establish shell companies, businesses that exist only on paper and often just to hide assets. They also sell "shelf" companies, which come with built-in credit histories and regulatory findings for added legitimacy.

Would You Pay $50 A Month To Watch All The Movies In Theaters You Want?

MoviePass is a new in-beta service that lets movie buffs watch as many movies in theaters as they want for $50 a month.

There's no need for tickets, just show your smartphone at a participating theater and you're in. The service, which is in trials in San Francisco, is trying to shake up the movie business by bringing the "Netflix model" of flat-rate pricing to the multiplex.

It's cool to see someone trying out some innovation in the idea-starved movie theater space. And if you see at least four movies a month, it could be a decent deal. Though, I don't know that there are actually four new movies a month I want to see.

All-You-Can-Watch MoviePass Brings Netflix Model to Theaters[WIRED]

From Now On, I'm Only Using Bear Paw Forks to Eat

Why You Should Get A No-Nose Seat:

no nose bicycle seat photo

Interview: Laird Scranton - Who are the Dogon?

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Hollywoodonomics: how Harry Potter and The Order of the Phoenix "lost" $167M

Last summer, Deadline released this balance-sheet ("participation statement") detailing the alleged financial state of the corporate entity struck to run the Warner Bros movie "Harry Potter and The Order of the Phoenix." The movie, which had grossed nearly $1B at the time, was nevertheless running $167M in the red.

Sick man robs bank for $1, demands jail and healthcare

A North Carolina man with no health care robbed a bank for $1 in order to go to jail and get his ailments seen to. He is hoping to be convicted of a felony, so he can get the benefits he lost after he was laid off from his 17-year Coca-Cola delivery job. He has carpal tunnel, a bad back, and "a protrusion on his chest." He is in chronic pain. He has promised to reoffend if he isn't convicted and treated.

Toronto police swear off kettling

"The crowd control technique implemented at Queen & Spadina on June 27 will not be used again by the Toronto Police Service," spokeswoman Meaghan Gray said in the statement, a response to a list of G20-related questions sent by the Star...