Last night [Jon Stewart] interviewed [William Kamkwamba] on The Daily Show. [William] is the young man from Malawi who at the age of 14 built a windmill generator out of discarded items. Now at 22 years old, [William] is working on his SAT scores in hopes that he can attend college in the US. We get a bit more insight about him and his build as he promotes his new book.

[William] was 14 when he completed the three month long build of his generator. He had previously dropped out of school because “my country was experiencing some famine”. The only resource he had at his disposal was a library that is funded by the US government (sounds like that turned out to be a good investment!).

After seeing a photograph of a windmill he was driven to succeed by the mantra: “somewhere somebody did it, it didn’t fall from the sky”. He goes on to explain how he built a circuit breaker (pictured above) to prevent a short circuit from burning his house down. Two nails are wrapped in wire with a magnet in the middle. If there is a short circuit, one of the nails will repel the magnet while the other attracts it. The nail is connect to a switch and when it moves to one side the switch is opened, breaking the circuit. Upon hearing this, [Stewart] makes the obvious comparison between [Macgyver] and [Kamkwamba].

One of the most endearing points in the interview is a story [William] shares about his first experience with the Internet. He was invited to the TED conference in 2007 and someone asked him if he’d used the Internet. Of course he hadn’t and they then started talking about using Google. When the search engine was explained to him he suggested that “windmill” be entered as a query. When millions of hits were returned his revelation was “Where was this Google all this time?”.

This is an amazing story that we can’t get enough of here at Hack a Day. Make sure you don’t miss the interview which starts 12:25 into the episode.

This morning we logged into Google to find a Barcode instead of the normal logo (how strange that Google would change their graphic!). Apparently today is the anniversary of the Barcode. This method of easily labeling items for computer scanning is used for every type of commodity in our society. But do you know how to get the cryptic information back out of the Barcode?

Here’s the challenge:  The image at the top of the post was created by the devious writers here at Hack a Day. Leave us a comment that tells us what the message says and explains how you deciphered it. There are programs that will do this for you and some smartphones can do this from a picture of the code, but we’re looking for the most creative solutions.

The winner will be decided in a totally unfair and biased way and gets their name plastered all over Hack a Day (and possibly slandered a bit).  So get out there and start decoding that machine-readable image.

Update: We’ve announced a winner for this challenge.

As part of a “disruptive technologies” course at the United States Military Academy, [Roy D. Ragsdale] produced a working prototype of a Google Street View-like system called PhotoTrail. Like its corporate-backed inspiration, the system captures georeferenced 360-degree panoramas that can be viewed interactively in a web browser…but at a hardware cost of only around $300. [Ragsdale’s] prototype is based entirely on consumer-grade off-the-shelf components and open source software, all tied together by the yin and yang of DIY: foam core board and a few Python scripts.

This article from IEEE Spectrum magazine provides some background on the selection of parts and construction of the system, including a hardware shopping list and a list of links to all of the open source packages used.

The PhotoTrail prototype is surprisingly small and lightweight. A vehicle isn’t even required; the camera array can be carried overhead by a single person, making it possible to capture remote locations. But [Roy] expects future revisions to be even smaller and less obtrusive, perhaps mounted to a headband. Mount Everest awaits!

Google has unveiled their latest web app. It’s called Google Sidewiki and makes it easy to “Contribute helpful information to any webpage”. We’re not quite so sure. If you have the Google Toolbar installed on your browser, Sidewiki allows you to open a side-panel, add your comments about the page, and read the comments of others.

In a Utopian Internet (Utopernet?) the world’s most predominant experts on all subjects would be browsing websites dropping off clairvoyant nuggets of wisdom like Greek oracles. In reality, letting anyone add to any web page does not equate to instant insight. We’re all familiar with long comment threads and forum posts that contain very low percentages of useful information.

Google considered this “white noise” as a possible problem and implemented a ranking system for which comments are displayed first. This raises another flag, will this become a type of advertising? At some point in the future will comments linking to other pages be ranked based not only on popularity, but on a kickback to the Big G in return for increased exposure?

There is also the consideration that web pages might not like what comments are being left in Sidewiki. We’ve noticed that emails referencing the Labor Movement often have link advertisements in Gmail about how to prevent Unionization. What would the Sidewiki for pages covering controversial topics such as religion, sexual persuasion, and abortion look like?

We will admit this is a well intentioned idea with a lot of potential. But everything depends on how well it is executed.

Google has acquired reCAPTCHA and plans to use the system for digitizing books. Wait… what? CAPTCHA is the method of requiring a user to type in a visually obscured word to prove they are human. How can this digitize books? The answer is a bit obscure and takes some time to discover, but you’ll have fun along the way. Read the rest of this entry »

If you want books, but don’t want to pay for them, there is a better way than walking into your local book store and pocketing them. Try grabbing them online, from Google!

Everyone must be aware of the Google Books Library project by now. If you’re not, it’s basically a way for Google to ensure all of the world’s book content is accessible and searchable. Through the Book Project, Google works with libraries to scan and archive their older and out of print materials. Up until recently, viewers of books in the Google Library Project web space were limited to viewing books within the browser. Not any more. Google Book Downloader is a utility that rips books from Google and saves them as PDFs so you can view them with any device or desktop that can view this file format. Using Microsoft’s .NET framework, the Google Book Downloader application allows users to enter a book’s ISBN number or Google link to pull up the desired book and begin a download, fishing off with exporting the file to a PDF. Full setup instructions and download are available on Codeplex.

Google’s Gmail is a highly viable option for email. With numerous features and options like widgets, a task list, labels, and chat, Gmail has a slight tendency to get overwhelming and might force us to loose focus on what it is really all about: email.

What can make Gmail better? For starters, how about no ads; they are cluttering and distracting. What about getting rid of the widgets and unnecessary features like labels and chat that we think are supposed to make us more productive but really only make us lose our focus to send, read and reply to email? Nobody knows Zen better than [Leo] at Zen Habits. We weren’t surprised that he and his friends (with Firefox and Greasemonkey) have found a way to trim all the unnecessary elements from Gmail and make it into an email powerhouse that focuses on a basic productive email client. The minimalist inbox for Gmail consists of Greasemonkey scripts for:

• Removing gadgets
• Hiding labels, chat and footer
• Removing ads
• Removing stars
• Getting rid of the Gmail logo and searchbar
• Removing menu navigation bar
• Cleaning up and removing unnecessary buttons

To get started focusing on email, and only email, head on over to ZenHabits for a list of associated scripts and what exactly they can do to help you on your road to the minimalist Gmail.

With the fresh competition of Bing, we are reminded that search engines haven’t changed much since Google came along. Bing has made some nice advancements, like video previews, but still has a way to go to be truly different than Google. [Long]put together this prototype of a real time search system based off of Bings API. He was inspired by Google Wave which we hope to see soon. Wave is primarily for communication, redefining how email and messaging would work. We can’t help but think that Google probably has some cool stuff in the secret vaults for searching too.  [Long]’s project seems like a decent start, but like the goodtimes.searchengine, we think it needs some work. What happened to the cool video previews? More importantly, why can’t we turn off the parental filter?

goodTimes.searchEngine is an experimental set up to display search engine results. Be sure you’re using Firefox or IE, because it isn’t working with chrome right now.  [Gordon] pointed us to it and asked for our feedback. We had a pretty quick list of improvements we would like to see, such as the category changes not popping up in new windows, or the new windows appearing on top for that matter. Or most importantly, a way to transition from the fancy preview window to a new tab or window. We are curious to hear your thoughts on this. What would make it better? Is it even needed? Is he building a tool to fix a problem that isn’t there? With Bing showing some nice new features over google, would something like this be of more use?

Traffic monitoring has been available on Google Maps for some time, but has been limited to highways and major roads. According to the Google LatLong blog, traffic tracking support is now available for smaller surface roads in select cities. The data is gathered through mobile phones running My Location. Anybody wishing to help out can sign up their phone and opt into My Location to participate in the anonymous data collection. Now you won’t have to gamble on whether or not your back road alternative route is congested when there’s construction on the freeway. Dash tried something similar with their two-way traffic reporting, but we’re guessing that Google’s version will have even better performance thanks to a rapidly increasing install base.