Archive for April, 2010

Geek on the Cheap #135:
Lilypad Alerts Butt Crack

Sunday, April 25th, 2010

Coin slot detector

Bend over, come closer… is there a cool breeze whistling down your butt crack? Is the world jingling its pockets for change to stick in your coin slot? Then I have the Instructable for you: the coin slot detector.

Multimedia artist Amy Khoshbin has combined a Lilypad Arduino, vibrating motor and photoresistor to solve the (hopefully not sticky) problem of plumbercrackitis. The photoresistor measures the amount of light beaming down your foul line. If there’s light, we’ve got visual contact and the vibrating motor is triggered. Time to pull it up, baby!

Unnecessary you say? Just plain silly? The waste of a perfectly good microcontroller which ought better expend its cleverness to flash a cheerful sorority of bright whites?

Oh, I beg to disagree, my friends, lest you find a photo of your broad smile Flickring for all to see.

Geek on the Cheap #134:
Women in Tech in Tiny Numbers — Should we lower our expectations?

Monday, April 19th, 2010

Sunday’s NYTimes included a great article, “Out of the Loop in Silicon Valley,” analyzing the reasons barriers still exist for women in the field of technology. Here are a few stats:

  • women create only 8 percent of venture-backed tech start-ups
  • they account for just 6 percent of chief executives in the top 100 tech companies
  • women account for just 22 percent (less than a quarter!) of software engineers at tech companies

These numbers are discouraging and surprised me. I personally know quite a few women who work as programmers and engineers, but that’s probably because I’m in the field myself. I should have realized, as the article states, that even though women now “outnumber men at elite colleges, law schools, medical schools and in the overall work force,” they’re still woefully underrepresented in engineering and computer science programs — the pipelines to careers in tech.

Which called to mind the low percentage of women in politics. Interestingly, the field of politics also has a “pipeline” problem according to “The Primary Reason for Women’s Under-Representation? Reevaluating the Conventional Wisdom.” The pipeline in this case is a person’s professional background — law, business — where women comprise fewer workers than men, even though the numbers are fairly equal for obtaining university degrees in these subjects.

In both cases, one of the deterrents is the desire to focus on family. A career in tech, as in politics, is seen as, and often can be, many hours over the traditional forty per week and so all-consuming that it’s hard to focus on anything else. It’s the work/life-balance chestnut we’ll be roasting for decades to come.

The bigger issue for me is the question of self-confidence. The NYTimes article states, “Many analysts and entrepreneurs say that attitude ['I have to know everything before I start; I have to have it all figured out'] — rooted in a lack of confidence — is the main reason that when women do pursue start-ups, they often do it later in life than men.”

I bristled when I read this. Why is wanting to be well prepared tantamount to a lack of confidence? And yet the more I rolled the idea around my noggin, the more I wondered if it’s true — partly true, anyway. When I started doing web development in the mid-90s, I jumped right in because it was a spanking-new field and the name of the game was figuring out how to do something with nothing. But when I started programming, I went back to school and took classes because I was nervous and wanted to be prepared — the field was well established and I wanted to shine.

Was I suffering from a lack of confidence?

Here’s another interesting factoid from the NYTimes article: “in a study of 493 undergraduate engineering majors’ intentions to continue with their major, men tended to stick with their studies as long as they completed the coursework, while women did so only if they earned high grades.”

Are we women trying too hard? Should we take a deep breath and just jump in? On the other hand, more than one of my former male bosses has told me that he prefers to work with women because they’re more detail-oriented and responsible.

Maybe we women are just living up to expectations. Good little workers, loving moms, hot-to-trot sexpots with perfectly shaved legs and bikini lines. It’s not too much to ask, is it?

Geek on the Cheap #133:
Does iPad Spell More ePiracy?

Monday, April 12th, 2010

ePiracy

This weekend I read an interesting article about the iPad’s impact on eBook piracy. What?! The thing’s only been available for a week — how could it have had an effect on anything already? Read on, grasshopper.

In “eBook Piracy ‘Surges’ After iPad Launch,” the founder of TorrentFreak found that “unauthorized” eBook downloads of the top 10 paperback books in the business category increased by 78% on BitTorrent after the iPad launch. I have to say I was surprised. Not only that downloads jumped in such a dramatic fashion, but that business books are so popular.

Then I discovered in reading a study by Attributor that the most pirated eBooks — nothing to do with the iPad — fall into the category of business and investing . I’m not sure whether I find this amusing or ironic, since this is the category of reader most likely to be informed about the consequences of lost revenue. Apparently there is no Venn diagram of knowledge and ethics in the category of business and investing.

Oh well. I have to admit I thought a 78% jump in illegal downloads was extraordinary. If I were a business writer or publisher, I’d be — pardon the pun — seeing red.

Then I continued reading the article and my fears were slightly assuaged by the fact that “the absolute download numbers [of eBooks] are relatively small compared to those of music and films.”

Okay, but the purchase of books is probably just as small when you run the same comparison. Also, many books and eBooks are simply unavailable for download. So once they are available, will we see the same rates of piracy as we do with music and movies?

Maybe, maybe not.

As the TorrentFreak reminds us, “when the iPod was launched there were no digital download stores, making file-sharing networks the only option to get music easily.” So if it’s easy and relatively cheap, people will buy instead of steal, right?

Maybe, maybe not.

Geek on the Cheap #132:
iPad versus Skinput — Device versus Surface

Sunday, April 4th, 2010

No, this is not yet another review of the vaunted iPad. Yes, I did swing by the local Apple store on Saturday to check it out: it looked/worked like my iPod Touch ballooned a few times larger, with lots more fingerprints. Enough said. (If you want an iPad review, you can read a ridiculous number of iPad stories from Wired.com or just go and play with an iPad yourself.)

What you may not have heard due to all the Apple mania, is that the JooJoo tablet also came out this past weekend. Originally dubbed the CrunchPad, it’s had a tortuous journey to market and looks a little like the iPad’s ugly stepsister (see also Engadget’s unboxing video).

Soon there will be more and more tablets to choose from, just as there are now a plenitude of netbooks on the market. So the question is: Which is the future — tablet or netbook? Or neither?

Both tablets and netbooks are taking two user issues into consideration: size and functionality. Ideally, we users would like all the functionality of our desktop or laptop computers in a smaller (more portable) form factor. Or, we want at least the functionality of our smart phones in a larger form factor. The netbook partially solves the first issue and the tablet partially solves the second. There’s also the creator vs. consumer issue. The netbook makes it easier to be a creator with a built-in keyboard and access to productivity software. The tablet makes it easier to be a consumer with a simple touch interface and ready access to entertainment and social networking.

Of the two, the tablet has captured the imagination in a more concrete way. According to Wired, the tablet “will change the world.” (A mini-entertainment center is a lot more fun than a mini-workhorse.)

But in fact we kind of want it all, don’t we? We want small size (phone size) and high functionality (desktop functionality). We want to be able to create at times and consume at times. But how many devices do we want to purchase and carry around and have to sync? Instead of more devices, what about one small device and many surfaces?

This is where something like Skinput comes in. It projects an graphical user interface (GUI) on your arm, then reads the vibration when you tap your arm. The example they show in the video of controlling another device strapped to your arm is where you can see its utility. It wouldn’t work for typing, for example, because you’d be one-handed. But imagine being able to project a GUI or a keyboard wherever you want — like the Virtual Laser Keyboard (VKB), only smaller, more accurate, more graphically extensible.

Now imagine a tiny device in your pocket that transmits to a tiny projector that you can use for input and output, or to a “screening” surface that you can fold up and stick in your pocket. Now that’s the future. The tablet is merely the right now.