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I’m Sorry Dave, I’m Afraid I can’t Do That

HAL9000 Personal Computer

“Let me put it this way, Mr Amer. The 9000 series is the most reliable computer ever made. No 9000 computer has ever made a mistake or distorted information. We are all, by any practical definition of the words, foolproof and incapable of error. “

With that in mind, who wouldn’t want a HAL 9000 personal computer at home? For his latest project, [Eduardo Zola] brings us a very realistic Raspberry Pi powered HAL 9000, complete with an all seeing eye.

In case you’re not familiar (boo!) HAL 9000 is a character from 2001: a Space Odyssey. His name is an acronym for a Heuristically programmed ALgorithmic sentient computer who is responsible for controlling the Discovery One spacecraft, and well, he goes crazy.

[Eduardo] has built this replica out of wood, a bit of paint, a Raspberry Pi, a speaker, webcam and a beautiful red all-seeing-eye, lit with LEDs. It’s a rather fitting entry to our Hackaday Prize contest.

It’s not quite done yet, but HAL 9000.2 is coming out soon!


Filed under: Raspberry Pi, The Hackaday Prize

Kenyan Teen’s Invention Protects Cattle and Lions

Lion Scarecrow

[Richard's] community in Kenya had a problem. The people depended on local livestock for survival, but the local lion population had started consuming that very same food source. The result was that people suffered from loss of the livestock, but the lions also suffered when the people killed them to protect their source of food. [Richard] knew he could do something to help both his community, and the lion population. He ended up building a lion attack prevention system.

He first tried a sort of scarecrow, to keep the lions away from the cattle. Unfortunately the lions proved to be too “tricky” and quickly realized that the scarecrows were no threat. Then one day, [Richard] was working with a flashlight. This led him to realize that the lions seemed to be afraid of moving light. That gave him the idea for his invention.

He had previously taken apart his mothers new radio, much to her dismay. He learned a lot about electronics in the process. He combined his electronics knowledge with this new knowledge about lions, to create his lion attack prevention system. The core component is the turn signal circuit from a motorbike. The circuit is hooked up to a rechargeable battery and a solar cell. This all runs through a switch so [Richard] can turn it on only when needed. The circuit is switched on at night to keep the lions away. [Richard] claims that they have experienced no lion attacks since the system was put in place two years ago!

This protects both the local cattle as well as the lions themselves. The whole thing is powered from the sun, so it’s likely to last a very long time. This kind of project may seem simple to many readers, but it’s a great example of the good ideas and ingenuity that can grow out of necessity. Oh, did we mention that [Richard] is only 13 years old? His invention is now reportedly being used all over Kenya and has led [Richard] to receive a scholarship to what he calls “one of the best schools in Kenya”.

While this hack has clearly changed the lives of many people in [Richard's] region. You don’t have to make something overly complicated to change the world.

[Thanks Keith]


Filed under: misc hacks

800+ LED Wall With Diffuser Panel is a Work of Art

LED Wall

What happens when you take over 800 individually addressable super bright RGB LEDs and house them in a giant diffused panel? You get awesome. That’s what you get.

[Epoch Rises] is a small electronic music and interactive technology duo who create cool interactive projects (like this wall) for their live shows and performances. They love their WS2812B LEDs.

The cool thing about this wall is that it can take any video input, it can be controlled by sound or music, an iPad, or even generate random imagery by itself. The 800 LEDs are controlled by a Teensy 3.0 using the OctoWS2811 library from Paul Stoffregen which is capable of driving over 1000 LEDs at a whopping 30FPS using just one Teensy microcontroller. It works by using Direct Memory Access to send data over serial into the Teensy’s memory and directly out to the LEDs with very little overhead — it is a Teensy after all!

As an added bit of interactivity, they’ve also written an app for Kinect that allows the wall to react to people dancing in front of it!

Let’s see them make a bigger one next time — Like this 1470 pixel stage wall!


Filed under: led hacks, Microcontrollers

‘Startup Guy’ fashion is literally a style in Banana Republic’s Summer line

'Startup Guy' fashion is literally a style in Banana Republic's Summer line

Do you want a look that says “work hard, play hard, disrupt hard”? Well, then, the Gap’s Banana Republic has all the business casual you can handle, lovingly called “The Startup Guy.”

The fashionable technologist struts about SOMA in a “cool belt,” “half-tucked shirt,” and a crumpled pants cuff that reveals sexy calves behind brown suede loafers.

Banana Republic’s San Francisco chic was obviously inspired by Refinery 29′s much-beloved list of “Cute Guys in Tech.” When asked to describe his personal style style, techie heartthrob David Stokes responded, “Effortless…literally.”

San Francisco has long had a notorious rebellion against high-end fashion. Mark Zuckerberg used to wear a hoodie everywhere, even to the chic tech awards show, The Crunchies and — famously — onstage at the D8 conference.

Indeed, some people think that Silicon Valley has no style at all. “Vanity Fair struggles to find Silicon Valley’s ‘Best Dressed,’” ran a headline from ZDnet, for a list of fashionistas that sometimes hailed from outside the Bay Area.

But, if you can’t beat ‘em, why not join ‘em? Banana Republic has taken the bold move of transforming anti-fashion into the summer’s must-have threads. You can check out the entire line here.








9 ways a well-designed site will boost SEO and engagement

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9 ways a well-designed site will boost SEO and engagement
Image Credit: Dreamstuff

While web design is traditionally thought of as an artistic way to show off a brand's image, its benefits are really much more far-reaching than that. A well-designed website can lend a helping hand to SEO efforts, increase conversion rates, and improve interaction and engagement with site visitors. Thanks to recent improvements and growth in the web design industry, it's become easier than ever for small businesses and entrepreneurs to design aesthetically-pleasing sites with a high ROI.

While a beautiful website doesn't necessarily mean a huge uptick in conversions, it can certainly help. Some of the most valuable benefits of having a well-designed website include:

1.) Longer Average Time on Page.

While clicks are good, you're really looking for visitors who will stay on your site and read your content. This is generally indicative of more engaged readers, who lead to higher conversion rates and lower bounce rates. Well-designed websites encourage people to stay by helping them move from page to page, like an experienced tour guide.

One study showed that design can be more beneficial in some cases if it encourages users to scroll down a page rather than click somewhere else on site, because it is easier for visitors to do so.

2.) Branding.

If you, as a company, are able to attract enthusiastic buyers, you've done your job. One way to do this is through high-quality web design which highlights and effectively communicates and strengthens your brand image. Software like Axure and Invision are making it easier than ever to attract these enthusiastic buyers by simplifying web design collaboration.

3.) Consistency.

While your customer wants a quality product or service, deep down they are craving something else. They want consistency. Think about why people buy food at their favorite fast-food joint. They often go because they can count on getting the same flavor and choices every single time. A McDonald's in Hong Kong will give you the same burger as the McDonald's in New York City. High quality web design does the same thing; it helps your company establish brand consistency, which is something many customers desire.

Some of the most successful companies in the world as well as top site designers claim they have long seen greater engagement because of consistency in site features such as company logos, “breadcrumbs” and content location on page.

4.) Scalability.

While your site may be effective today, will it still be attractive three years down the road? High quality web design means scalability. If your business grows or styles change, your site should be able to scale and adapt accordingly. Sites designed without great care or attention to detail usually necessitate starting over when major changes occur, due to a lack of scalability and adaptability.

5.) Added Exposure.

If you have truly fantastic web design, you may even find additional exposure through CSS galleries. These are professional design galleries that websites showcase. They can bring additional traffic you would never have had otherwise. One software that's made web design collaboration easier and simpler is Flatsies. With improved collaboration comes higher quality web design and added exposure.

6.) Cross Browser Compatibility.

Everyone has their own preference for browsing. Some like Firefox. Others like Safari or Google Chrome. Some people still swear by Internet Explorer. A well-designed website ensures that your site will be clearly visible and functioning on all browsers. This maintains a professional image and makes the most out of all visits.

7.) Reduced Maintenance.

In the business world, downtime is lost time. When your site goes down, you are missing out on exposure, conversions, and sales. A high quality website will limit outages, as well as the amount of time you need to clean things up and eliminate bugs. This gives you more time to focus on the things that matter.

8.) Shareability.

If your website is well-designed, it will be easily shareable. This provides opportunities for visitors to share content, suggest products to friends or interact with your brand. Furthermore, it builds social signals, which increase your brand's reach and awareness. Many experts speculate that social signals are also used in Google's ranking algorithm.

9.) Better Search Engine Visibility.

While your primary goal should be to accommodate your human visitors, high quality web design also influences your site's rankings in search engines. Google actually employs manual search quality raters who visit websites and score them based on usability, quality of content, and other metrics related to design. High-quality web design accomplishes this, and thus influences search engine rankings.

Conclusion

Clearly, high-quality web design has numerous business benefits. If you're looking to upgrade your site's design or want to launch a new site, you will want to consider multiple factors including the consistency of your branding on site, its shareability and browser compatibility, among many others.

You may also be interested in considering new technologies that make communication between web design firms and businesses like yours easier and more effective.

Your website design matters more than you might think: Don't let a poor-quality site hold you back from getting the conversions your business needs to thrive.


John Boitnott is a longtime digital media consultant living in San Francisco. His writing has appeared in NBC, The Village Voice, FastCompany, and USAToday.


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Fantastic, futuristic fuel-cell limo ready for road testing (gallery)

Fantastic, futuristic fuel-cell limo ready for road testing (gallery)

Above: Gull-wing doors give driver and passengers alike plenty of room.

Image Credit: NanoFlowcell AG

At the Geneva Motor Show in March, German firm Quant revealed a car powered by what it called ‘nanoFLOWCELL’ technology.

Now, the flow-cell vehicle will make its road-going debut, as the car has been approved for real-world testing by the TÃœV, or Technischer Ãœberwachungsverein, Germany’s road safety monitoring agency.

The first thing most will notice about the Quant e-Sportlimousine is its stunning styling. With a low hood line, double-bubble roof, and single-piece gull wing doors it manages to look new and distinctive without resorting to the kind of overt weirdness that might turn people off.

But it’s that flow-cell technology that deserves real attention.

Flow cells could be described as a cross between regular batteries and fuel-cells. Liquid electrolyte is circled through two tanks, between which is a membrane. Electrical charge passes through this membrane from one cell to the other, producing power for an electric drivetrain.

It’s that simple, but the flow-cell’s makers suggest it has high charge density, high performance density and low weight–enough for five times greater performance than a lithium-ion battery of equivalent weight.

The company thus quotes a range of 600 kilometers (372 miles). That’s from a flow-cell with 120 kWh of storage capacity–more than a Tesla Model S–but the company’s claims imply the flow-cell itself should weigh a lot less than a lithium-ion battery pack.

And like the Tesla, the prototype e-Sportlimousine isn’t short of performance.

Torque is quoted as a faintly unbelievable 2,138 pounds-feet “times four”, though Quant’s performance claims do seem to back up this prodigious output–the 0-62 mph sprint takes 2.8 seconds, and top speed is “over 217 mph”.

Ordinarily it would be easy to dismiss these claims as flights of fancy, but since one of Europe’s strictest roadworthiness agencies has given the car the green light for public road use, perhaps there’s some substance here.

The real benefit is that Quant can test its vehicle in real-world conditions. While cars would be a natural vessel for flow-cell technology, the firm also has its eyes on improving the cost and sustainability of maritime, rail and aviation technology too.

The cockpit of the Quant does not lack for luxury. Comfy seats? One hopes. The Quant's gull-wing doors make a striking head-on profile. Gull-wing doors give driver and passengers alike plenty of room. The Quant limousine is powered by an unusual form of fuel-cell technology the company calls "nanoFlowcell." Quant looks pretty good coming and going.

This story originally appeared on Green Car Reports.








Why we need to slow down on the gigabit Wi-Fi standard, 802.11ax

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Why we need to slow down on the gigabit Wi-Fi standard, 802.11ax

Above: Get ready for a super-speedy future.

Image Credit: jonel hanopol/Flickr

Last month, the Wi-Fi Alliance and the Institute of Electrical and Electronics Engineers (IEEE) announced that they would begin to look toward 802.11ax, a new successor to the 802.11ac Wi-Fi standard.

Though still in the early days, the IEEE has started to set priorities for the new standard. At the top of the list is a four-fold increase in network speed for devices, possibly allowing individual device connections, even for those with limited battery power, to move to the gigabit range for the first time.

Sounds awesome, right? Not so fast.

New radio technology known as MIMO-OFDA will power this increase. MIMO means multiple-input, multiple-output: In other words, using multiple antennas to send multiple data streams to devices – a technology that has been in play since 802.11n. And OFDA is a variant of the orthogonal frequency division multiplexing (OFDM) technologies used in 4G cellular and previous Wi-Fi standards.

Chinese equipment company Huawei — which is heading up the IEEE's 802.11ax working group — has already done trials of MIMO-OFDA systems that have hit 10.53 Gbps in the lab using the existing 5 Gigahertz (GHz) Wi-Fi band. Surely both manufacturers and users will be clamoring for access to this new technology, right?

Not exactly. The 802.11ac standard — currently the "latest and greatest" — was only approved in January of this year. While we in the Wi-Fi community have great hopes for 802.11ac, most clients do not even support it yet, and the rollout in clients has been slow so far.

The same is true for enterprise-class equipment. Although the key wireless local area network (WLAN) manufacturers introduced enterprise-grade hardware later in 2013, adoption has not taken off just yet. So that means most enterprise and hotspot networks today are still based on 802.11n, or older, technology.

Since your WLAN is only as fast as your clients, a critical mass of 802.11ac clients and a compelling business case are what will drive infrastructure (access point) upgrades. Clients who are still using 802.11g or 802.11n Wi-Fi technology will still have 802.11g or 802.11n connectivity speeds — even if the network has been upgraded to 802.11ac. These slower clients will reduce the overall network efficiency for everyone, even the 802.11ac innovators.

For these reasons, by all analyst accounts the real enterprise activity on 802.11ac won't start until 2015.

And it's not just the business case that we need to worry about. The technological advances being put forth in the 802.11ax specifications are tremendous, and the ability of manufacturers to design and produce compliant equipment is becoming more and more challenging.

This trend began back with 802.11n. MIMO, a very challenging technology to implement, was first introduced with 802.11n. The complexity of this technology created a slow roll-out of devices, first one-stream devices, then two stream, then three, etc., with very few four-stream devices hitting the market before devices based on the 802.11ac specification were already being introduced.

This trend is being repeated with 802.11ac technology. The full capabilities of 802.11ac are incredible, but we're only a small part of the way there when you consider the equipment that is shipping today. At this point it is very unclear how long it will take for the full capabilities of 802.11ac to be realized, and if they even will before manufacturers shift their attention to 802.11ax.

Another important fact to consider — and one that often seems to be overlooked when discussing 802.11 technology advancements — is that the predominant number of devices powered by Wi-Fi in the future will be handheld devices, including tablets, smartphones, and the like.

One of the biggest issues with these devices is their battery capacity, often leaving these devices in the proverbial dust. Most of the smart phones in use today support 802.11n, at best, and only the lowest level of MIMO: one stream. 802.11ac support is difficult to find, but increasing rapidly. But again, because of the limited battery power, 802.11ac support will most likely be only for one-stream devices, falling far short of the overall capabilities 802.11ac has to offer.

The OFDA technology being proposed with 802.11ax does hold some promise here, as this technology should be able to boost throughput without requiring additional transmitters, as is required today for multiple MIMO streams (and additional throughput). But it's still very early in the specification cycle, so we'll need to keep our eye on how 802.11ax addresses the limited power constraints of handhelds and smart phones.

There's no denying the fact that the future points towards faster, more capable wireless networks, and at a faster and faster rate. It's no different than the meteoric rise in data rates we've seen on wired networks over the past decade.

But at the same time it's important for device manufacturers to take a step back and work on implementing the standards that have already been adopted, and for industry visionaries to be sure they are specifying technologies that can be implemented across the full range of products, especially portable products.

After all, 802.11 is about mobility, isn't it?


Jay Botelho is director of product management at WildPackets, a network analysis solutions provider for networks of all sizes. Reach him @jaybotelho.


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Tired of being spied on? These startups try to keep your secrets safe


The private messaging arena is so hot right now that, as I'm writing this story, my inbox is filling up with story pitches about the launch of yet another ephemeral messaging app.

And it’s not just product launches: These apps are getting money. Just last week an app called Wiper, which claims to wipe a conversation from your phone, your friend’s phone, and Wiper’s servers with a single swipe of the finger tip, landed $2.5 million in funding.

With money comes crowding. Snapchat clones are everywhere these days, and while deleting your data is all the rage, it doesn’t seem connected to actual privacy. In fact, the whole notion of a private chat app is sort of bunk. Snapchat has been hacked, and developers have created Snap-saving apps to circumvent the self-destructing component of messages.

That’s not to say there is a shortage of reasons to be concerned with privacy.

NSA whistleblower Edward Snowden's leaks have revealed that the National Security Agency has been siphoning citizen data through the backdoors of Internet companies. As a result, the fatigue we’re all feeling from having our browsing habits mined, analyzed, and morphed into "targeted" ads is — for some people — turning into a desire for real privacy.

Private messaging apps have emerged in stalwart opposition to data-hoarding companies like Facebook and Google.

"If I went around with a tape recorder and told people I was going to record our conversation, keep it for as long as I want, and maybe share it with third parties, nobody would go for that," says Wiper co-founder Manlio Carrelli. His app means to give users control over how long their messages exist, rather than timing them to self-destruct, empowering users to take control of their information.

Allowing messages to stay stored on servers unless the user chooses to destroy them is a relatively unusual compromise. It provides something of a middle ground in an all or nothing space where users can either give data away to mainstream apps for indeterminate use — or regularly delete all data using an ephemeral messaging service like Snapchat.

‘This is tremendously difficult’

But with so much of the focus on obliterating content, data security may be taking a back seat. Manlio tells me that if you're looking to keep messages for a long time, Wiper is probably not the app for you.

Messages on Wiper's servers are encrypted and the company works with a "top three cloud service provider,” he says. However, that doesn’t necessarily tell me anything concrete about how secure my information is, such as the level of encryption the services uses, whether it’s end-to-end (in this case, yes), and what the server security looks like, which is all important in understanding just how secure your data is.

"I feel like there are a lot of novices stepping in, because this is actually tremendously difficult," says Nico Sell, CEO of the private messaging app Wickr, an ardent supporter of Internet privacy.

To her point, Jon McAfee, who founded the eponymous security software company, tried his hand at private messaging with Chadder. The app is so secure that users have had trouble logging in or even finding other people using the app. Heightened security in some instances can also really slow down the sending and receiving of messages, which is not popular with users.

User friendliness and security have long been at odds. Most people don’t install security software on their mobile devices because it’s a cumbersome and often confusing process. The same goes for using encryption tools like Pretty Good Privacy, or PGP, a military-grade encryption tool that uses two different keys to encrypt and decrypt files.

Secret messaging apps have the opportunity to automate secure communications and create truly private messengers. But without security standards, measures of encryption are all over the map — with some apps being less secure than others.

Just say no to storage

Let’s take Sobrr, for example, an app conceived over a drunken bachelor party weekend by Bruce Yang. The "private" social network only holds onto friendships and communications for 24 hours before hard-deleting everything, because sometimes you want to forget about what happened last night. Outside of that window, the app only keeps friendships that you indicate are worth maintaining. Amazon S3 handles Sobrr's backend and stores its user data — your phone number, location, friendships, etc. While Sobrr encrypts messages, that doesn’t ensure your information is secure.

"Any database is 100 percent guaranteed to be hacked. We have to get away from storage," says Sell.

Maybe Sell's approach is a little overzealous, but she takes securing personal information very seriously. User data never touches Wickr‘s servers. Messages are sent device to device, and all personal information is located on the registered device. Plus messages are encrypted so that only the intended device can see messages.

Wickr also uses Perfect Forward Secrecy, which prevents hackers or the NSA from decrypting intercepted messages at a later date.

The great thing about the flood of private messengers, despite their differing levels of security, is that start-ups and consumers are talking about expectations for data privacy in applications. Most of these companies talk about “end-to-end” encryption, which wasn’t the case even two years ago. A lot of that is because consumers are asking for security, they just don’t necessarily understand it.

Even Wickr, a company devoted to security, doesn’t really try to sell security to its customers.

"When we talk to kids about Wickr, we say it’s an app that sends you self-destructing messages. I don’t tell them about a private messenger, I say we’ve got stickers, graffiti," says Sell.

Trendy today, necessary tomorrow?

These apps seem like trendy little chat tools now, but their use will likely dictate the future of social interactions on mobile and in the web.

Messaging is a major component of any social platform. Linkedin, Facebook, and Google all have their own instant-messengers, and Twitter is built on one-to-one messages. Making the next wave of communication tools is paramount to any major social tech company.

Ephemeral messaging is definitely that next stage. For confirmation, just look to Facebook, which has twice tried to create an ephemeral messaging app, first Poke and now Slingshot, in efforts to challenge Snapchat’s self-eviscerating photo-messaging dominance (to little success). Of course, Facebook makes no pretense of keeping your data truly private: Its business model depends on collecting as much information about its customers as possible, the better to target ads to them.

Snapchat was only the beginning. The apps of tomorrow have the chance to give consumers control over their information and to provide user friendly security — or they risk being as ephemeral as the messages they fabricate.


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Snapchat is a photo messaging application developed by four Stanford students. Using the app, users can take photos, record videos, add text and drawings, and send them to a controlled list of recipients. Users set a time limit for how... read more »

Wickr's mission is to provide secure communications that Leave No Trace. People are being tracked online is ways they do not understand by numerous governments and corporations throughout the world. Your private communications are wo... read more »