China’s Loongson Processor Could Power First Natural-Born Chinese Supercomputer [PopSci]

The People's Republic has unveiled more details on its quest to phase U.S.-made processors from its microchip diet. China's next supercomputer will run purely on Chinese processors, possibly before the end of this year.

China has been developing its own CPUs at the state-run Institute of Computing Technology (ICT) for several years, but iterations of its chip – known as Loongson or "Dragon Core" – have been incapable of breaking into the elite ranks of supercomputing. China's last supercomputer, the Dawning 5000a, was intended to run on Loongson processors, but was eventually constructed around AMD processors when the ICT couldn't deliver a powerful enough chip quickly enough.

The Loongson 3, under development since 2001, should change all this if the ICT can deliver on its promise. Based on the MIPS architecture, the chips theoretically can be strung in 16-core clusters to perform at extremely high speeds, possibly hitting the petaflop performance mark with just 782 16-core chips. That's one quadrillion operations per second, for those of you keeping score.

Right now, of course, this is all on paper (well, a quad-core chip is in prototype, but the proposed 16-core bad boy is still under development). But authorities in the supercomputing field seem to agree that the chips, running in clusters, can hit the performance marks necessary to create a top-tier supercomputer. This isn't the first time the Chinese have promised a home-grown high-performance supercomputer, but for the first time it looks like they are going to deliver.

[Technology Review]

Popular Science is your wormhole to the future. Reporting on what's new and what's next in science and technology, we deliver the future now.


11-Year Old Writes iPhone Drawing App and Donates Proceeds To Children’s Hospital [App Store]

He isn't the youngest kid to write an iPhone app, but 11-year old Cameron is wise beyond his years. He is donating a substantial part of the proceeds from his drawing app iSketch to the Mattel Children's Hospital UCLA.

Writing to Crunchgear, Cameron's father explains the situation:

My son Cameron is 11 years old and, last year, he had a medical problem that prevented him from participating in the physical activities he otherwise enjoys. (He is nearly fully recovered.) During that time, Cameron became interested in computers, and he began to read anything he could get his hands on. He watched Stanford University professors on iTunes, scoured the web for articles on programming and taught himself several different programming languages. (Neither my wife nor I have any idea how to program.) Cameron began to focus on the iPhone and iPod touch devices as the "apps" offered for sale for use on those devices seemed really cool to him. He began to work on a few different apps. After completing some summer camps on programming and continuing to read and learn, Cameron finalized an app, which he calls iSketch, and submit it to Apple. The app, which is a painting/drawing program, was approved by Apple for sale on its App Store in December. (He has since updated it several times..)

Inspired by the care he received at Santa Monica-UCLA Medical Center and Orthopaedic Hospital, Cameron has dedicated a substantial portion of the proceeds from his sales to purchase entertainment and electronic items for Mattel Children's Hospital UCLA's Child Life/Child Development programs in Westwood and Santa Monica so that pre-teens and teens will have additional age-appropriate options available to them during their Hospital stays. Cameron's sales so far have been good, but he hopes to accelerate them so that he can donate even more to the Hospital.

Damn, that is humbling.

Despite Cameron's age, iSketch looks like one of the better drawing apps in the App Store. Even if you aren't interested in drawing on your phone, the 99 cent price tag is going to be worth every penny. [iTunes and iSketch via Crunchgear]


The Truth Still Matters | Cosmic Variance

Over at the Intersection, Chris Mooney is concerned that we haven’t had a science/religion tiff in what, days? So he wants to offer a defense of organizations like the National Center for Science Education, who choose to promote science by downplaying any conflicts between science and religion. For example, the NCSE sponsors a Faith Project, where you can be reassured that scientists aren’t nearly as godless as the newspapers would have you believe.

In the real world, scientists have different stances toward religion. Some of us think that science and religion are (for conventional definitions of science and religion) incompatible. Others find them perfectly consistent with each other. (It’s worth pointing out that “X is true” and “People exist who believe X is true” are not actually the same statement, despite what Chad and Chris and others would have you believe. I’ve tried to emphasize that distinction over and over, to little avail.)

In response to this situation, we uncompromising atheists have a typically strident and trouble-making idea: organizations that bill themselves as “centers for science education” and “associations for science” and “academies of science” should not take stances on matters of religion. Outlandish, I know. But we think that organizations dedicated to science should not wander off into theology, even with the best of intentions. Stick with talking about science, and everyone should be happy.

But they’re not happy; Chris and others (Josh Rosenau at Thoughts from Kansas is a thoughtful example) think that the NCSE can be more effective if it proactively tries to convince people that science and religion need not be incompatible. As an argument toward this conclusion, Chris attempts to horrify us by offering the following hypothetical conversation between a religious believer and an NCSE representative:

Religious believer: I know you say that evolution is good science, but I’m afraid of what my pastor says–that accepting it is the road to damnation.

NCSE: As a policy, we only talk about science and to not take any stance on religion. So we couldn’t comment on that.

Religious believer: I do have one friend who accepts evolution, but he stopped going to church too and that worries me.

NCSE: All we can really tell you is that evolution is the bedrock of modern biology, and universally accepted within the scientific community.

Religious believer: And I’m worried about my children. If I let them learn about evolution in school, will they come home one day and tell me that we’re all nothing but matter in motion?

NCSE: ….

To which I can only reply … um, yeah? That doesn’t seem very bad at all to me. Do we seriously want representatives of the NCSE saying “No, the claim that accepting evolution is the road to damnation is based on a misreading of Scripture and is pretty bad theology. If we go back to Saint Augustine, we see that the Church has a long tradition of…” Gag me with a spoon, as I understand the kids say these days.

Of course, we could also imagine something like this:

Religious believer: I know you say that evolution is good science, but I’m afraid of what my pastor says–that accepting it is the road to damnation.

NCSE: Oh, don’t worry. There’s no such thing as “damnation,” your pastor has just been misleading you.

Religious believer: I do have one friend who accepts evolution, but he stopped going to church too and that worries me.

NCSE: Well, that will happen. Prolonged exposure to scientific ways of thinking can lead people to abandon their religious beliefs. But don’t worry, you’ll be happier and have a more accurate view of how the universe works if that’s what happens.

Religious believer: And I’m worried about my children. If I let them learn about evolution in school, will they come home one day and tell me that we’re all nothing but matter in motion?

NCSE: That would be great! Because that’s what we are. But it’s not as depressing as you make it out to be; correctly understanding how the world works is the first step toward making the most out of life.

How awesome would that be? I don’t actually advocate this kind of dialogue in this particular context — as I just said, I think science organizations should simply steer clear. But these answers have a considerable benefit, in that I think they’re “true.”

That’s the major point. Advocacy and educational organizations have the goal of supporting science and education the best way they can, but there are limits. For example, they should stick to the truth. I tried to make this point in my post about politicians and critics — some people have as their primary goal advocating for some sort of cause, whereas others are simply devoted to the truth. But an organization advocating for science needs to take both into consideration.

And there are some scientists — quite a few of us, actually — who straightforwardly believe that science and religion are incompatible. There are absolutely those who disagree, no doubt about that. But establishing the truth is a prior question to performing honest and effective advocacy, not one we can simply brush under the rug when it’s inconvenient or doesn’t make for the best sales pitch. Which is why it’s worth going over these tiresome science/religion debates over and over, even in the face of repeated blatant misrepresentation of one’s views. If science and religion are truly incompatible, then it would be dishonest and irresponsible to pretend otherwise, even if doing so would soothe a few worried souls. And if you want to argue that science and religion are actually compatible (not just that there exist people who think so), by all means make that argument — it’s a worthy discussion to have. But it’s simply wrong to take the stance that it doesn’t matter whether science and religion are compatible, we still need to pretend they are so as not to hurt people’s feelings. That’s not being honest.

I have no problem with the NCSE or any other organization pointing out that there exist scientists who are religious. That’s an uncontroversial statement of fact. But I have a big problem with them making statements about whether religious belief puts you into conflict with science (or vice-versa), or setting up “Faith Projects,” or generally taking politically advantageous sides on issues that aren’t strictly scientific. And explaining to people where their pastors went wrong when talking about damnation? No way.

Right now there is not a strong consensus within the scientific community about what the truth actually is vis-a-vis science and religion; I have my views, but sadly they’re not universally shared. So the strategy for the NCSE and other organizations should be obvious: just stay away. Stick to talking about science. Yes, that’s a strategy that may lose some potential converts (as it were). So be it! The reason why this battle is worth fighting in the first place is that we’re dedicated to promulgating the truth, not just to winning a few political skirmishes for their own sakes. For what profit is it to a man if he gains the whole world, and loses his own soul? (Mt. 16:26.)


AMT and I-MEC

I am currently working on a project, and collecting data on Advanced Monitoring & Targeting (Energy Consumption ) along with Intelligent Motor Energy Controls.

I am a novice in this technology,any ideas, suggestions, or personal experience feedback

you could offer would be greatly apprecia

The Danger of Hackers Getting Into Airplanes’ Flight Computers [Rant]

As if we didn't have enough with crotchbombs and the TSA, the FAA is now saying that "[passenger networking] may result in security vulnerabilities" exposing flight systems to hackers. But, how serious is this danger?

The FAA says that their airworthiness tests "do not contain adequate or appropriate safety standards for these design features." So basically, it seems that there's a grey area for now, leaving the responsibility to the airplane manufacturers. They gave these guidelines to Boeing, but that's about it:

1. Boeing must ensure electronic system security protection for the aircraft control domain and airline information domain from access by unauthorized sources external to the airplane, including those possibly caused by maintenance activity.

2. Boeing must ensure that electronic system security threats from external sources are identified and assessed, and that effective electronic system security protection strategies are implemented to protect the airplane from all adverse impacts on safety, functionality, and continued airworthiness.

In theory, the flight systems and passenger networks on the Boeing 747-8 and the ever-delayed Dreamliner are separated. But Vijay Takanti, VP for Security for Exostar (which is partially owned by Boeing, according to Runway Girl Mary Kirby), says that "there is some crossover and [the industry] is trying very hard to make sure the number of crossover points are very limited."

What does Takanti mean with "crossovers points"? And why don't just keep both networks separated to avoid any potential hacking nightmares? That would fix any potential security breaches, right?

It seems that this may not be the case, which is what the FAA is hinting at in their guidelines: The mere existence of two networks in a plane—one accessible by the passengers—is a security hole in itself. The FAA says that Boeing should find a way to prevent "access by unauthorized sources external to the airplane, including those possibly caused by maintenance activity."

That's the key. While it could be quite difficult to do, tampering with the networking systems inside the plane is a possibility during the maintenance stage. And, if history has taught us anything, any security system can be broken, no matter how well engineered it is. Add to this the fact that planes are now being connected to the internet itself, and you have the potential ingredients for some remote hackers to do something bad.

As they admit themselves, the FAA doesn't have regulations for these inflight networking systems. This makes me a bit nervous. It is not that their regulations or tests could make things hacker-proof—nothing is hacker-proof—but the idea of leaving this responsibility to private companies is not good enough, as demonstrated in recent times.

The only 100% secure option is this: Fly without any kind of passenger networking. But then again, would you live without your newly-acquired habit of viewing YouTube cat videos during flights? Would you sacrifice your inflight mail or your web browsing, like you have already sacrificed your dignity at the security checkpoint? Should we stop running our always-connected lives because of a remote security threat?

Maybe we need to update the True Odds of Airborne Terror Attack chart. Maybe there's nothing to worry about. Do terrorist have the resources to coordinate a sophisticated attack like this, and take control of a plane in any meaningful or dangerous way? Given their crotchbomb plans, probably not. But I don't want to find out, FAA. Let's nail all these issues before they become a real problem. [Runway GirlPhoto by Jeff McNeill]


Four Robots, Four Different Ways To Climb Walls [Robots]

Here are four robots that leave me unsettled in four unique ways. The robots in this clip, developed at Ben-Gurion University of the Negev in Israel, each employ their own distinctive method of wall-climbing. This snail-inspired bot uses hot glue.

One of the robots is equipped with magnetic treads for sticking to any metal surface. Another, looking like some sort of terrifying mechanical arachnid, has four legs with fishing hooks for scuttling around on textured surfaces. I already worry about spiders crawling on my walls. Now, thanks to the roboticist behind the project, Amir Shapiro, I have to worry about robots creeping up on me too.

The least menacing of the bunch, seen in the video climbing a white board, has four tiny wheels covered in 3M sticky tape, allowing it to roll slowly across smooth vertical surfaces. That guy? He's OK with me. [Bot Junkie]


Acer Founder Is Not Impressed With His American Counterparts [Blockquote]

Stan Shih, founder of Acer, has made a bold prediction with a cowardly timeline: that US computer brands aren't competitive enough to stick it out another 20 years. That'd work out just great for, let's see... oh, right, Stan Shih!

Shih's claim is that US manufacturers are incapable of putting lower priced products on the market, and so will die off like so much chaff. BUT: while companies like Lenovo and Acer have made strides recently, in the PC market there's still high demand for top-tier products, and Dell and HP are still huge—and hugely popular—companies.

The bigger problem, of course, is that in twenty years anything can happen. Maybe we won't be using laptops at all by then. Maybe we'll do all our computing from the Google chips implanted in our brains. So before Stan Shih gets too excited about 2030, maybe he should focus first on making laptops that don't melt in 2010. [PhysOrg]


If thy rifle scope offends thee, pluck it out | Bad Astronomy

jesus_with_rifle[Update: In this post I originally said that Biblical passages are inscribed in the sights, however, what is actually inscribed are references to these passages, such as "JN8:12" referring to John 8:12. I corrected the text below. I don't think changes anything but I want to be accurate.]

There has been a minor uproar over an ABC news report that some rifle sights made by a Michigan company and bought by the US military have Biblical inscriptions in them.

According to the article, the military Powers That Be apparently didn’t know about the inscriptions (though apparently some soldiers knew; see below). The military does have rules forbidding proselytizing any religion in Iraq or Afghanistan (where the rifles are used), and this could be seen as such. Certainly it’s fodder for the people there to claim the US is waging a holy war, so the inscriptions are a pretty bad idea.

What to do about this?

First, on the military side, they need to sever the contract with the company, called Trijicon. I would hope that there is some other company that can make scopes for the rifles — if not, then the military needs to tell Trijicon to stop inscribing the ones they buy. The existing scopes are a problem to be sure, but that’s already done. Maybe they can be swapped out, or the inscriptions scraped off, though of course the expense in time and money would be huge. As far as the military goes, I think it’s almost certainly not worth it; they may simply have to (haha) bite the bullet, continue to use the rifle scopes, and hope for the best.

Trijicon, on the other hand, really screwed this up. They put the U. S. government in a bind here, both financially and perceptually. Whether they did this knowing it would violate U.S. laws or not, they need to be fined at the very least, and publicly humiliated as well.

Why humiliated? One of the Bible passages referenced on the scopes reads, "Whoever follows me will never walk in darkness, but will have the light of life."

Remember, that’s referenced in the scope of a rifle designed to kill people. Unless I have grossly misinterpreted the Sermon on the Mount, I don’t think that’s exactly what Jesus had in mind.

So Trijicon is icky and weird and allegedly did something illegal. However, Michael Weinstein of the Military Religious Freedom Foundation goes farther. He said: "It’s wrong, it violates the Constitution, it violates a number of federal laws…" I agree it’s wrong and that it violates laws. I suspect a First Amendment case can be made here, but I’m not sure it’s a good one, or that it’s worth making. I’m not a lawyer, but it seems to me that an indirect violation of the Establishment Clause has probably occurred, and since it was done unknowingly by the military, the violation of the federal law is a better avenue of pursuit if action is taken to stop the inscriptions. I’m glad the issue has come to light, but I certainly don’t think we need to rake the Marines and Air Force as a whole over the coals because of it.

Now, having said that, there’s the matter of some soldiers knowing about the inscriptions. Weinstein says that "…commanders have referred to weapons with the sights as ’spiritually transformed firearm[s] of Jesus Christ.’" If that is true, then we have a far clearer problem. Those soldiers have indeed violated the First Amendment, and again, if this is true those military personnel need to be chastised — at the very least. I am of the opinion they shouldn’t be in charge of troops in religious tinderbox areas like Iraq and Afghanistan as well. The idea of religious zealots fighting on our behalf in an area that has been torn apart by religious zealotry for millennia strikes me as a really, really bad idea.

But then, again in my opinion, Weinstein goes too far in his rhetoric:

"This is probably the best example of violation of the separation of church and state in this country," said Weinstein. "It’s literally pushing fundamentalist Christianity at the point of a gun against the people that we’re fighting. We’re emboldening an enemy."

This statement makes me uncomfortable. I suspect Al Qaeda will use this as propaganda against us, but then they do that for everything; they hardly need more fodder for that. But this being the best example of Establishment violation… I think Weinstein needs to take a look at Kansas, Pennsylvania, Oklahoma, and most recently Mississippi. Creationists make bigger violations than this over breakfast every day.

Perhaps he means Iraq when he says "this country", though the context in the article is unclear. Either way, though, I think caution is called for in our rhetoric over things like this. There’s a clear path here, and no need to exaggerate the situation.

The image of Jesus with a rifle is everywhere on the web, but I couldn’t find the original. If anyone knows who did this, please leave a comment!


Next Stab Proof Vests Could Be Inspired By Ocean Snails’ Shells [Nature]

This bad-boy-in-a-shell could be used as inspiration for body armor, according to scientists. Meet the Crysomallon Squamiferum, or 'scaly-foot gastropod.' He could end up saving your life.

Hailing from the Central Indian Ridge, the snails can ward off attacks from crabs and other menaces thanks to what its hard shell is composed of. Inside hydrothermal vents iron sulphide particles are found, and combined with a spongy middle layer it means that when something strikes it—like a mean crab's claw—it absorbs energy by allowing the shell to crack, or "microcrack" as the scientists at the Massachusetts Institute of Technology are calling it.

The shells also offer a form of attack, as well as defense. In a small way, at least. The iron sulphide will apparently make any attacking claws blunt, by grinding them down.

Whether we'll see it on the next stab-proof vests is anyone's guess, but at least we now know to avoid these scaly-foot gastropods. I'm certainly not going to eat any when I'm next in France, anyway. [New Scientist]


Behold! The Terrible, DVR-Proof TV Ad [TV]

Watching this ad for Grasshopper phone systems, you might not notice anything amiss. Watching this ad for Grasshopper phone system while fast forwarding, you still probably won't notice anything amiss. And that's the whole point.

The ad foils commercial-skipping DVR users by planting a brand icon—that grasshopper there—in the middle of the screen throughout the ad, and ending with a simple information panel. It looks more or less the same whether viewed at regular speed or high speed, so even if ad-skippers don't have to sit through the audio pitch, they still end up absorbing some of the ad's information, in theory. Another neat trick: By using this gimmick, Grasshopper has fooled numerous bloggers into posting about their ad. Planning on spending your commercial break browsing Giz? Ha. Grasshopper'd.

If they have the choice, people don't watch ads, and increasingly, people do have a choice. I imagine we'll see more than a handful of awkward stunts like this over the next few years, at least until traditional TV advertising falls by the wayside, replaced by something more akin to the unskippable ads we're starting to see in online video. [Adrants via Gawker]


Stainless Steel vs. Carbon Steel

I have been given the glorious task of performing a cost reduction study on a current part that is made from stainless steel (303 and 440). I have been asked to reduce the cost by making it from carbon steel rather than stainless. I have already determined that there might not actually be a reduct

Jobs of the Future: Space Pilots, Personal Branders & Growers of Body Parts | Discoblog

spaceshpThe personal brander job doesn’t sound like such a stretch, and the space pilot gig is definitely something for young rocket enthusiasts to aspire to… but grower-of-body-parts is definitely not something you expect to see advertised at a job fair this year. But a new study done by the British government has indeed included this unique profession as one of the important jobs in the future.

The report commissioned by Britain’s Department for Business, Innovation and Skills was carried out by market research group Fast Future, and tried to determine a list of both jobs that do not currently exist and current jobs that could become more prominent by 2030.

The BBC writes:

Potential jobs of the future will include more farmers of genetically engineered crops and livestock, specialists in climate change reversal, and personal branders who will help individuals to establish their own brand across social networking sites.

Not just that, the report predicts police officers will be needed to monitor weather manipulation, and electronic waste data managers will be employed by people who do not want to be tracked online.

Oh, and if you’re feeling a little slow, the report predicts that surgeons may be around to “boost your RAM” as it were, giving people the ability to get extra memory capacity.

Yay! The future is coming. Strap on your jet-packs.

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Image Credit: Flickr / Thorne Enterprises


1752 Manuscript, With the “Real” Story of Newton and the Apple, Goes Online | 80beats

Newtonp2Attention lovers of old-timey science: the good stuff keeps on coming. Last month, when Britain’s Royal Society released digital versions of some of its greatest scientific papers to celebrate its 350th anniversary, we brought you delightfully odd and gruesome samples from the library. Now the society has uploaded another batch of classic manuscripts, including a book containing an early account of Isaac Newton’s apple story, one of science’s most famous anecdotes.

A biography written by William Stukeley, one of Newton’s contemporaries, relates the apple story as Newton himself told it to Stukeley. The text of Stukeley’s Memoirs of Sir Isaac Newton’s Life has long been available online, but the Royal Society opened up digital access to the handwritten manuscript itself Sunday [Scientific American]. In his 1752 book on Newton, Stukeley writes:

After dinner, the weather being warm, we went out into the garden and drank tea under the shade of some apple trees, only he and myself.

Amidst other discourse, he told me he was just in the same situation as when formerly the notion of gravitation came into his mind.

Why should that apple always descend perpendicularly to the ground, thought he to himself, occasion’d by the fall of an apple, as he sat in a contemplative mood.

Why should it not go sideways or upwards, but constantly to the earth’s centre? Assuredly, the reason is that the earth draws it.

While Newton personally told this story to Stukeley, the latter’s book wasn’t published until a quarter-century after Newton’s death. And the great scientist himself may have embellished the anecdote. Keith Moore, the Royal Society’s head of library and archives, said: “Scholars know where the apple story comes from, and clearly it’s an anecdote Newton polished. What we want is for the public to see the manuscript itself. It wasn’t just Newton that polished it, succeeding generations put a gloss on it as well – that story just humanises him just a little bit” [The Guardian]. Indeed, some popular retellings have embellished the tale to add that the apple didn’t just plop to the ground near Newton, but actually clonked him on the head.

However padded or polished, the apple story still inspires the imagination. Thomas Levenson, MIT professor, DISCOVER contributor, and author of Newton and the Counterfeiter, tells DISCOVER that scholars have gone to great length to investigate its details, including some who took cuttings of what they believed to be Newton’s original apple tree. MIT has an apple tree grown from the supposed Newton cuttings that saw first fruits in 2006.

Stukeley’s Newton book isn’t the only newly released manuscript, though. The Royal Society also digitized Henry James’ fossil sketches, Richard Waller’s watercolors, and more.

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Image: The Royal Society


Sand Blasting Data Required

We are developing a sand blasting media engineered from recyclable plastic that will compete with 3 or 4 existing medias currently on the market. To help us position this product and help us have an understanding of the actual size of the market could someone assist us with the following 2 marke

New Candidate For Apple Tablet Name: The iPad [AppleTablet]

Here's what we know, from MacRumors: last July, Apple dummy corporation Slate Computing, LLC applied for a trademark for an "iPad." Similar applications have since been filed in England, Australia and Hong Kong. Also: what a terrible name.

We'd heard rumors of the iPad starting way back in August, when it appeared on a mysterious Border's survey. Since then, though, iSlate has been the frontrunner. But with some of the iPad applications being filed just this week, we may be looking at an awkwardly named tablet device indeed.

The first reactions here at Gizmodo HQ were that it sounded like anything from a feminine hygiene product to a terrible way to nickname your apartment, but it turns out MADtv beat us to the punch:

With all the lawsuits Apple's already facing, can they really stand another from a defunct late-night sketch comedy show? Guess we'll find out soon enough! [MacRumors]


Sound Generator Could Kill Humans at Ten Meters [Weapons]

This seems like a harmless tube. In fact, it was harmless: Israeli farmers used the first version to scare birds from crop fields. Then, somebody converted it into a crowd dispersion mechanism. And then, they discovered it could kill.

The Thunder Generator uses mixture of liquefied petroleum, cooking gas, and air to create explosions, which in return generate shock waves capable of stunning people from 30 to 100 meters away. At that range, the weapon is absolutely harmless, making people run in panic when they feel the sonic blast hitting their bodies. However, at less than ten meters, the Thunder Generator could either cause permanent damage or kill any person.

It comes in a single-barrel configuration, but according to the manufacturer—ArmyTec—you can mount it everywhere, and combine it with other barrels to create even more powerful design. You can even mount several cannons on different places, and synchronize them so you can create a sound barrier perimeter capable of dissuading your enemies. In fact, you can even make the sonic wave to turn 90 degrees to fire around corners, all by using a curved barrel design.

I can wait these people to install a sightly-lower power version of these things in raving clubs everywhere. My bones and ears are not crushed enough. [Thunder Generator via Defense News]


555 Timer for Motor Pulsing – Fire!

I am trying to build a simple a stable 555 timer to switch a smallish dc motor off and on. In simulation it works. However, when I proto the board, everything works right, on/off interval is good, relay opens and closes.......................until I add the motor, then I get the magic smoke from th