Tuesday, July 19, 2011

Hydrothermal Worm Viewed Under An Electron Microscope

Huffpost Green, 7/18/11, has a short feature by Dean Praetorius showing a wonderful image of a hydrothermal worm taken using an electron microscope. The small version at the left does not do justice to the original. They say: "Taken using an FEI Quanta SEM, this image is amazingly zoomed in 525 times. The real width of the field in the image is 568μm, or 568/1000 of a millimeter. It's far larger than an atom, but still among the smallest living things. The worm, as scary as it looks, is something most people will never actually get to see (or have to worry about, for that matter). Hydrothermal worms are deep sea creatures, almost as small as bacterium, and are largely found near hydrothermal vents in the ocean.

This shot was captured by Philippe Crassous and submitted to FEI's gallery. Other amazing shots taken using FEI's microscopes can be seen here."

(The full image is by FEI and Phillippe Crassous.)

Monday, July 18, 2011

123 Year Old Talking Head

John Stevens writing in The Daily Mail Online, 15 July 2011, has a story called "Voice of Thomas Edison's talking doll is heard again after 123 years as scientists crack the code of mysterious metal ring." He says: For decades it lay in the bottom of a secretary's desk drawer, its purpose unknown. But now, 123 year after it was made, the secret of this bent metal ring,which was found in Thomas Edison's laboratory, has finally been uncovered. Scientists have found that the microscopic grooves on the ring make up the tune of 'Twinkle, Twinkle, Little Star' and mark the world's first attempt at a talking doll and the dawn of America's recording industry. ... But the metal ring - about 2.5 inches around and half an inch wide - was so bent and damaged that scientists couldn't play it. More than four decades later, scientists at the Lawrence Berkeley National Laboratory in Berkeley, California, used image analysis to create a digital model of the record's surface. That model was then used to reproduce the recording as a digital file, not unlike the modern technology behind the voice that emerges from today's talking dolls."

Commenting on the story, IS regular, Gordon Ramsay, says: "There is a description of this doll in Scientific American around 1880. Interestingly enough, the first talking doll was patented by Maelzel in the 1820s, but unlike Edison's, it used a bellows and reeds, etc., to mimic the voice - so the same shift from mechanical synthesis to copy synthesis played out in dolls as well as humans (evolution repeating itself ;-) )."

Thanks and a hat tip to Robert Remez for pointing this story out to us.

Monkbot, a 16th century automaton

Boingboing has re-discovered a 16th century automaton described earlier by Elizabeth King in an article called "Clockwork Prayer: A Sixteenth-Century Mechanical Monk") in Blackbird, an online journal of literature and the arts, Vol. 1, No. 1, Spring 2002. Here is the reprinted description from the Blackbird journal:

"Driven by a key-wound spring, the monk walks in a square, striking his chest with his right arm, raising and lowering a small wooden cross and rosary in his left hand, turning and nodding his head, rolling his eyes, and mouthing silent obsequies. From time to time, he brings the cross to his lips and kisses it. After over 400 years, he remains in good working order. Tradition attributes his manufacture to one Juanelo Turriano, mechanician to Emperor Charles V. The story is told that the emperor's son King Philip II, praying at the bedside of a dying son of his own, promised a miracle for a miracle, if his child be spared. And when the child did indeed recover, Philip kept his bargain by having Turriano construct a miniature penitent homunculus."

Thanks and a hat tip to Sherwin Borsuk for bringing this to our attention.

Friday, July 15, 2011

Stux redux

Just when I thought I'd read everything there was to read about the Stuxnet worm, Wired delivers a blockbuster piece with masterful writing and juicy technical detail. The hidden message feature is only one small tidbit in an incredibly complicated story.

Thursday, July 14, 2011

The Singularity is Far: A Neuroscientist's View

David J. Linden, a neuroscientist, has an article in boingboing (July 14, 2011) that expresses his skepticism about the view of some, such as Ray Kurzweil, that the singularity is imminent. Linden says "Kurzweil ... argues that our understanding of biology—and of neurobiology in particular—is ... on an exponential trajectory, driven by enabling technologies. The unstated but crucial foundation of Kurzweil's scenario requires that at some point in the 2020s, a miracle will occur: If we keep accumulating data about the brain at an exponential rate (its connection maps, its activity patterns, etc.), then the long-standing mysteries of development, consciousness, perception, decision, and action will necessarily be revealed. Our understanding of brain function and our ability to measure the relevant parameters of individual brains (aided by technologies like brain nanobots) will consequently increase in an exponential manner to allow for brain-uploading to computers in the year 2039. That's where I get off the bus. I contend that our understanding of biological processes remains on a stubbornly linear trajectory. In my view the central problem here is that Kurzweil is conflating biological data collection with biological insight." Thanks to Christina Spiesel, IS Group regular, for letting us know about this article.

Steampunk articulatory synthesis

An article by Rebecca Boyle in POPSCI.com, called "Moaning Mouth-Bot Learns to Croon, Is Even Creepier Than Ever," features the "enhanced" version of a talking mouth created by Hideyuki Sawada of Kagawa University in Japan. Check out its scary vocal skills. Thanks and a hat tip to Robert Remez for pointing out this article to us.

The Art of Failure 2011

ieee spectrum online, July 13, 2011, has a slideshow, by Ritchie S. King, of the surprising stuff you find when chips fail.

The figure at the left shows the melted ends of gold wires from a semiconductor that look like a bonsai tree sitting atop a platform.

Image: Stefan Waginger
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