Eyewriter 2.0 + Robot Arm = Livewriter. Combining the FFFFAT Lab’s inspirational Eyewriter project (named this week as one of Time’s top 50 inventions of 2010, and now glasses-free!) with their GML RoboTagger Sharpie Magnum-wielding robot arm, kids were able to try out the eye-tracking graffiti system to print out giant-sized tags of their own names. These projects touch on so many of my favorite areas of interest, so very cool.
Tag: technology
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Livewriter
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Waterproof AlInGaP optoelectronics on stretchable substrates with applications in biomedicine and robotics
Translation: sheets of entirely flexible, waterproof, implantable LEDs. Yes, yes, medical and biotech applications, but imagine how interesting the tattoos at raves will be in a few years!
From Scientific American’s writeup:
As a demonstration of the technology the researchers put LED arrays through any number of experimental implementations. They deposited LEDs on aluminum foil, the leaf of a tree, and a sheet of paper; they wrapped arrays around nylon thread and tied it in a knot; and they distended LED arrays by inflating the polymer substrate or stretching it over the tip of a pencil or the head of a cotton swab. “Eventually the students just got tired” of devising new tests for the light-emitting sheets, Rogers says. “There was nothing that we tried that we couldn’t do.”
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Lumitype
From the New York Times obituary for Louis Moyroud, co-inventor of the phototypesetting Lumitype machine that revolutionized the newspaper industry in the 1950s:
Then, in the early 1940s, Mr. Moyroud and Mr. Higonnet — electronics engineers and colleagues at a subsidiary of ITT (formerly International Telephone & Telegraph) in Lyon, France — visited a nearby printing plant and witnessed the Linotype [the older Victorian-era printing process that was still in use] operation.
“My dad always said they thought it was insane,” Patrick Moyroud (pronounced MOY-rood) said. “They saw the possibility of making the process electronic, replacing the metal with photography. So they started cobbling together typewriters, electronic relays, a photographic disc.”
The result, called a photo-composing machine — and in later variations the Lumitype and the Photon — used a strobe light and a series of lenses to project characters from a spinning disc onto photographic paper, which was pasted onto pages, then photoengraved on plates for printing.
If you’ve ever seen the older lead-alloy-fueled “hot metal” Linotype process you’d agree: it was crazy.
(Photo of the Lumitype/Photon wheel by Flickr user Jeronzinho)
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Pallophotophone
The world’s only working (modern) Pallophotophone plays 80-year-old NBC radio broadcasts:
The pallophotophone was an early audio recorder created by GE researcher Charles Hoxie in 1922. Rather than using magnetic wire or lacquer disks, the device captured audio waveforms on sprocketless 35 mm film as a series of 12 parallel tracks reflected from a vibrating mirror. It was used to record some of the world’s oldest surviving radio broadcasts on Schenectady, New York radio station WGY between 1929 and 1931.
As a forgotten optical medium, I guess its more modern analog would be laserfilm discs. Sort of working along the right path, but just not practical compared to other media coming out at the time. There’s more about the rediscovered pallphotophone recordings on the GE Reports blog.
(Via Coudal)
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Abner Mercury Memory
From a recently declassified history (PDF) detailing the NSA’s computing equipment up to 1964, comes a description of their house-sized computer ABNER’s mercury-powered memory banks:
A succession of pulses (signal or no-signal) travels through an acoustic medium, say mercury, from one end to the other of a “delay line.” […] At the input end of the line is a crystal that converts an electrical pulse to a mechanical wave which travels through the mercury to the other end, where another crystal reconverts it to an electrical signal. The series of electrical signals is recirculated back to input, after passing through detector, amplifier, and driver circuits to restore the shape and strength of the pulses. Also, in the part of the cycle external to the delay line are input and output circuits and “clock” pulses for synchronization. In mercury, the pulses travel at the speed of sound, which is much slower than the speed of electrical signals, and thus the delay in going from one end of the line to the other constitutes a form of storage. […] In ABNER, the mercury tank was a glass tube about two feet long; the delay time was 384 microseconds, or eight words of 48 bits at one-megacycle-per-second rate. Thus the 1,024 words were contained in two cabinets holding 64 mercury delay lines each.
ABNER was named after comic strip character Li’l Abner, reportedly because it was a big, hulking machine that “didn’t know anything”.
(Via Bruce Schneier)
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Iphone Resolution
Phil Plait of Bad Astronomy lucidly explains display resolution, clearing up arguments about the iPhone 4’s retinal display technology:
Imagine you see a vehicle coming toward you on the highway from miles away. Is it a motorcycle with one headlight, or a car with two? As the vehicle approaches, the light splits into two, and you see it’s the headlights from a car. But when it was miles away, your eye couldn’t tell if it was one light or two. That’s because at that distance your eye couldn’t resolve the two headlights into two distinct sources of light.
The ability to see two sources very close together is called resolution.
DPI issues aside, the name “retinal display” is awfully confusing given that there’s similar terminology already in use for virtual retinal displays…
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Uncanny Vallery in Richardson Texas
From the Visual Science blog, Life and Love in the Uncanny Valley:
David Hanson’s robots are by now somewhat familiar faces, including his Einstein robot currently being used as a research tool at Javier Movellan’s Machine Perception Lab at UCSD, and the punk rock conversationalist Joey Chaos. A less familiar face is that of Bina Rothblatt, the blonde at the end of the table in the above photograph. Bina is a robot commissioned by Sirius Satellite Radio inventor Martine Rothblatt to look like her beloved wife.
Hanson Robotics is in a house in the neighborhood where I grew up in Richardson, Texas. They’re doing some interesting work in robot aesthetics and materials, crafting convincing android-type replicants in a studio environment that’s busy around the clock. Flickr user steevithak has a nice photo set up of some of the robots they were tinkering with in 2009.
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Lego Augmented Reality
[Video no longer available]
LEGO DIGITAL BOX – augmented reality kiosk system
Excellent use of AR for marketing: an in-store display that’s actually fun to play with, and it makes you pick up the box in order to see it come alive. Nice.
(Via Make)
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Potemkin Army
The Discover blog reports on a Potemkin army:
Russian balloon maker Rusbal is working on an order from the country’s defense ministry to supply full-scale inflatable military models. The realistic-looking hardware is used in battlefield positions and to protect Russian strategic installations from surveillance satellites, distracting snoops and protecting real combat units from strikes. They can look like real vehicles in the radar, thermal, and near infra-red bands, so they’d even look right through night-vision goggles.
And now from Shakespeare’s Macbeth (Act V Scene IV — you know, the cool part where the incoming army disguises itself as the Birnam forest):
MALCOLM
Let every soldier hew him down a bough
And bear’t before him: thereby shall we shadow
The numbers of our host and make discovery
Err in report of us.Nothing much new, then. Simple visual misdirection is the magician’s greatest asset.
See also:
- Edison’s Warriors, a great article in Cabinet about the U.S. 3132nd Signal Service Company in WWII, a sonic deception team that created strategic disruption using wire and tape recordings with acoustical engineering help from Bell Labs
- Operation Bertram
- The Ghost Army
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Powerpoint Makes Us Stupid
PowerPoint makes us stupid. It’s dangerous because it can create the illusion of understanding and the illusion of control. […] Some problems in the world are not bullet-izable. Gen. James N. Mattis of the Marine Corps, the Joint Forces commander, quoted in today’s New York Times article We Have Met the Enemy and He Is PowerPoint.