Archive for the ‘geekcraft’ Category

Geek on the Cheap #131:
Scanning a Book in One Minute – Process vs Product

Sunday, March 28th, 2010

How could it be possible to scan an entire book in one minute? By flipping the pages, of course. Researchers Takashi Nakashima and Yoshihiro Watanabe at the University of Tokyo have developed a superfast scanner that lets you digitize a book by rapidly flipping pages.

Their system uses a camera with an incredibly fast shutter (500 frames per second) to take pictures of the text and/or images as the pages are flipped. Except, you might interject, what about the fact that the pages are curved as they’re being photographed (we’re flipping the pages, right?). You’re right! Because the pages are curved, the letters in the text and any images will be distorted in the pictures taken. They would be useless if the clever researchers hadn’t solved this problem by shining a laser on each page that projects a set of lines, which are also photographed. Their software then uses the lines to flatten each image.

(FYI, for those of you who don’t know, converting an image of text [not readable by a Kindle or Nook, for example] into a PDF [a format recognized by text readers] is already quite easy and accessible to all by using OCR software.)

The next step the researchers plan to take is miniaturizing the process for integration into smart phones. “One day,” according to Erico Guizzo, “you might be able to flip the pages of a book in front of your iPhone and get a digitized version in seconds.”

Holy crap! When the news story about the superfast scanner came out on March 17th, I imagine thousands of publishers took this epithet literally as they dropped to their knees to pray it ain’t so.

On the other hand, let’s look at the process for a minute and not just the product. The device is predicated on the existence of a hard copy book, not a digital book. And it’s predicated on the idea that you want to read this hard copy book in digital form. One scenario would be that don’t want to buy the digital form. So you go into a bookstore, pick up a book and scan it — essentially stealing it. Makes the whole idea of getting a digital copy for free hit home, doesn’t it? It really is stealing.

The truth is that it’s not going to get harder to convert books to digital form or to share them in digital form. It’s only going to get easier. So the only thing that will stop the theft of intellectual property is the knowledge, the true sense, that it is theft if you don’t compensate an artist for his or her work. I’m not being all high and mighty here; I’m as guilty as the next person of having downloaded one or two things for free. So I’m saying this to myself as well as everyone else. Not compensating artists is simply not right.

But there is yet another side to this issue: What if you want to digitize the books you have paid for? The ones sitting upon shelf after shelf at home? Daniel Reetz, founder and steward of the DIY Book Scanner community, built his own book scanner for about $300 because he wants his books with him everywhere. (I can relate to this; when I travel, I always overpack books.)

If you’d like to build your own book scanner, his instructions are available at “DIY High-Speed Book Scanner from Trash and Cheap Cameras” or DIYBOOKSCANNER.ORG. (Yet another project to add to my list.) Of course, scanning a book with this DIY device will take a lot longer than a minute, but that just gives you time to fondle your book. Oops, should I not have divulged that?

Geek on the Cheap #124:
More TEI – Demos, Workshops & Kits

Sunday, February 7th, 2010

NOTE: I switched out computers this weekend and Adobe is not allowing me to reinstall CS2 (yes, I’m still using 2). So no pics this week because I’m Photoshop-less.

It’s now been an entire week away from TEI and I must admit the glow is starting to fade as the day-to-day toils of life clog my mind. But here are some great links to take me back to it all:

TUI Blog by form+zweck
Written mainly by Christian Zöllner, one of the creators of the SMSlingshot which was demoed at TEI (it allows you to type in a message then slingshot it onto a wall).

Groove Mechanic: TEI Demo Roundup
This blog by Abel Allison, one of the creators of the TessalTable, offers another nice roundup of the demos.

Technology Review: Malleable Maps, Artistic Robots and Bubble Interfaces
Videos of five of the demos — 3-D Responsive Map, Interactive Art Cobots, Tangible Jukebox (very cool), Augmented Reality Pattern Table (very very cool), Soap Bubble Interface (see my video from last week). Unfortunately, the vids are narrated (oddly) by a monotone voice that makes what’s being described sound almost boring.

Humanism at the MIT Media Lab’s TEI Conference??!
Last but not least, Jon Kolko looks back at the conference and comes up with the conclusion that “the geeks are begging for design.”

KITS

Below are a few kits available from people who gave related workshops at TEI. I would have loved to have taken these workshops, but we could choose only one. Oh well, at least I can pretend to conduct my own pseudo-workshop at home. And you can, too.

Fabric Sensor Kits
Hannah Perner-Wilson is currently a grad student in MIT’s High-Low Tech group (read this interview with Hannah from Fashioning Technology). She held a workshop at TEI on making textile sensors from scratch.

Fritzing
Sounds like fun, doesn’t it? Fritzing is open source software that helps non-technical designers move from physical prototype to actual product: creating a printed circuit board with the appropriate circuit and desired shape.

Vital Threads Biofeedback Apparel
Sean Montgomery is a recent neuroscience PhD who likes to stand out in a crowd. I had a blast meeting him at TEI and seeing his devices in person. On this site, you can get kits for his Truth Wristband (turns from blue to red as the wearer becomes aroused) and Heart-felt Apparel (detects your heart beat and displays it as a pulsing LED heart on your t-shirt).

Top 30 Wiimote Hacks
I also missed the Wiimote Hackery workshop and the presenters — Amanda Wiiliams and Daniela Rosner — don’t have any kits. But Wiimotes are crazy-easy to hack, so here are Hack N Mod‘s top 30 Wiimote hacks (my favorite is #2 Wiimote Controlled Lawn Mower).

Have fun hacking and don’t forget — if you’re not pulling your hair out at some point in the making, you must be doing too many things right.

Geek on the Cheap #123:
TEI ’10 – Best Conference Ever

Monday, February 1st, 2010

TEI Studios from jay silver on Vimeo.

So I went to the TEI Conference last week and had a fantastic time — learning, meeting people, having braingasmic fun. This conference concerns itself with the interlinking of the digital and physical worlds through tangible interfaces, whole-body interaction and interactive surfaces.

There were about 230 attendees from around the world and everyone was brilliant, accomplished and collaborative. Although English was the lingua franca, people were gabbing in German, Japanese, Portuguese, Swedish, Chinese (just to name a few) — a refreshing breeze through my Brocas since I live in very white Vermont.

Of course, right off the bat, I went to the wrong building. Somehow I didn’t know that MIT has built a brand new Media Lab building, a cross between an Apple store and Kubrick’s 2001 — very white with lots of glass, a floor-to-ceiling central atrium with wrap-around labs and walkways criss-crossing from one side to the other. Apparently I have no sense of direction at all whatsoever, because the second I was off the conference floor I was lost. (Though quite happily so.)

A couple of photos I took from the ground floor - click the image to see a slideshow

I had planned to tweet during the papers, but I couldn’t get past the rudeness of having a computer in my lap while someone’s presenting. I know from first-hand experience that it’s awful to look out at an audience and not find anyone looking back at you. And I didn’t tweet from the hotel because you had to pay for wifi, which I refused to do (yes, I’m cheap).

However, I did shoot a few videos, and this week’s Geek includes a couple that describe the breadth of the work shown at the conference.

The Soft and the Hard

We all use interfaces every day — our phones, microwaves, light switches, cars. We push a button, click a mouse, swipe a finger. We expect them to be where they always are which is, in fact, considered to be good design.

However, what if an interface is temporary, ephemeral? Do we really need to know where it is all the time if we know what it is? And what if the interface requires great care in its handling? Does this make it more precious or the work it accomplishes more dear? These are just a few of the questions that come to mind with the work of Tanja Doring, an integration of art and technology:

With Soumitra Bhat, however, we have a lovely synthesis of music, technology and social impact. He has created TouchTone, an electronic musical instrument for children with cerebral palsy. It’s a clever way of giving these children access to the joy and therapeutic benefits of making music. Normally, their limited physical abilities make it impossible for them to play a musical instrument.

These two innovations describe the breadth of work presented at the conference — from concrete applications of interaction design to more abstract ideas of how we might use the various properties of physical objects in combination with either current or projected computational and/or electronic capabilities.

Stay tuned for more next week — workshops (and kits). The video at the top is just a tease of how cool they were.

Geek on the Cheap #111:
The Holidays Are Creeping Up

Monday, November 9th, 2009


Yes, it was just Halloween but Hanukkah/Xmas/Kwanzaa (in order of appearance) are just around the corner. So here are three DIY projects to get started on, in order of difficulty (though none of them is truly difficult). Two of them require a minimal amount of sewing and one involves duct tape. Take your pick:

Cellphone Beanbag Chair
ThinkGeek customer photo of cellphone beanbag chairWhy does your cellphone need a beanbag chair? Because it needs to relax after getting poked all day by somebody’s gigantic meaty fingertips. Never made a beanbag before? It’s easy: 1) cut out 2 circles of fabric, 10 inches in diameter each; 2) put the “right” sides (the sides you want to show) of the fabric facing each other and sew the edges together, except for about 2 inches; 3) turn the fabric rightside out; 4) pour in dried beans until the bag is about 75% full; 5) stitch up that 2-inch hole. Now if this is too much work for you, ThinkGeek is selling them for a mere $9.99. Be sure to check out the customer action shots. Those are some happy, relaxing devices.

RFID-Blocking Wallet
What’s RFID and why do you want to block it? RFID is radio frequency identification — the technology used to tag and track animals in the wild. It’s also used in some credit cards, many corporate IDs, and in U.S. and Euro passports. Why should you care? Because an RFID can be hacked with $8 worth of gear. So for $8, a thief can steal your credit card name and number or any other information stored in your RFID-enabled card. Or weirder yet, your movement could be tracked if someone wanted to know where you were.

RFID-blocking walletBut with a little aluminum foil and duct tape, you can make your own RFID-blocking wallet. Yes, I know, this sounds suspiciously crazy, as though I’m telling you aliens are reading your brain waves — beware! But RFID isn’t alien; in fact it’s pretty simple technology. And the ease with which it can be hacked is well known. In fact, there are RFID-blocking wallets and cardholders on sale at Amazon for as little as $14.39. But wouldn’t it be more fun to Macgyver your own? (My husband wants one of these.)

Touchscreen Gloves
Touchscreen glovesIt’s getting cold here in Vermont, which means I’ve switched from my zip-up fingerless driving gloves to my boring-but-vastly-warmer fleece-lined gloves. This also means that in order to use a device with a capacitive touchscreen, such as my iPod Touch, I need to take off said fleece-lined gloves. Brrrrr. Instead, I would prefer to be able to control my device with those toasty gloves still on my hands. And no, I don’t want sew some funky fingerhoods on fingerless gloves and have to fool with them every time I want to poke my device. What to do?

Easy fix. Sew patches of conductive thread on the tips of your gloves. This allows the conductive property of your fingertips/thumbtips to reach your device. I must admit, this is my favorite project of the three here and I will soon be updating all my winter gloves. You can find full instructions at GirlieGirl Army. And yes, you clever cheap geek, conductive thread is not cheap compared to everyday cotton thread. But there are many fun things you can do with conductive thread. For example, you could mod gloves for your friends, make a robot t-shirt with LED eyes or create a winter hat that lights up from front to back. To see more projects, go to Instructables.