Archives: ‘Sci/Tech’ Category

Chatty shows face at local anime fair

25 Mar 2006

ChattyChatty, a talking mannequin with a human face, is on display at the Tokyo International Anime Fair 2006 (at Tokyo Big Sight through March 26).

Developed by Ishikawa Optics & Art Corporation, Chatty has a face that is brought to life by means of a video projector inside its head. A video image of an actual human face (or the face of a computer-generated character, if you prefer) is projected onto the inner surface of the mannequin's face, which serves as a three-dimensional video screen. Audio synced with Chatty's video lip movements gives the face an astonishingly realistic look.

Chatty's presence at the anime fair brings Ishikawa one step closer toward realizing its dream, which is to see the technology behind Chatty's face be put to use in speech-capable historical figures for museum exhibits, theme park guides, or human-faced androids.

[Sources: IT Media, Chatty homepage (check out the video of Chatty reciting Humpty Dumpty in Japanese!)]

UPDATE: Video of Chatty emerges. The Humpty Dumpty mantra continues.

Ryuichi Sakamoto expands attack on controversial law

23 Mar 2006

Ryuichi SakamotoAt a press conference held in Tokyo on March 23, composer Ryuichi Sakamoto made a public appeal to the government to exempt all secondhand electrical goods from the Electrical Appliance and Material Safety Law (a.k.a. PSE Law, or DENAN). The law, which is set to take effect April 1, will prohibit businesses from selling electrical goods that do not bear the PSE mark (that signifies compliance with the law?s safety standards). In other words, before putting products up for sale, dealers will be forced to file paperwork and perform tests (such as 1,000 volts for one minute) on each and every pre-2002 electrical product in order to obtain a PSE mark. Though the government recently revised the law so that it does not apply to certain "vintage" electric instruments with high scarcity value, Sakamoto called upon the government to expand the exemption to all secondhand electrical goods.

?It is not up to the bureaucrats to determine what is ?vintage? and what is not," said Sakamoto, who was joined at the press conference by several other musicians, including composer/performer Hideki Togi and producer Kenzo Saeki. "The things we use should not be a matter for the government bureaucracy to decide. They think that we musicians will shut up because vintage instruments are no longer subject to the law, but I?d like to see everyone get behind those who make a living in the recycled goods business.?

Sakamoto was scheduled to deliver a formal written demand, in the form of a petition, to the Minister of Economy, Trade, and Industry after the press conference. The petition includes the signatures of about 50 musicians, including Tetsuya Komuro and Misayoshi Yamazaki, as well as 8 music organizations.

[Sources: Mainichi Shimbun, Kyodo]

Rare goblin shark caught at mouth of Tokyo Bay

23 Mar 2006

A goblin shark (Mitsukurina owstoni), considered a living fossil by scientists, was caught by a trawler off the coast of Miura, Japan. The 1.3-meter, 4-kg fish is a rare bottom-dwelling species of shark. Catching the shark in the relatively shallow waters around the mouth of Tokyo Bay is considered highly unusual.

Goblin shark

One defining characteristic of the goblin shark is its elongated snout. The goblin shark's teeth closely resemble those of a known fossil species of shark, earning it the nickname of "living fossil."

Katsumi Suzuki, 42, a fisherman working at Kami-Miyata Port in Miura City, says he caught the shark while net-fishing for monkfish in 350-meter deep water. Yokohama City Aquarium and Yokohama Hakkeijima Sea Paradise Aqua Museum official Takayuki Shishikura, 42, says, "This shark demonstrates the abundance of sea life in the waters around Tokyo Bay."

[Source: Yomiuri Shimbun]

Things in danger of vanishing…

22 Mar 2006

Things in danger of vanishing because of the Electric Appliance and Materials Law

Nanzuka Underground (Shibuya, Tokyo) has put together an exhibit entitled "Things That Are In Danger Of Vanishing Because Of [the] Electric Appliance And Materials Law." The law, which is set to take effect on April 1, has been widely criticized for its expected impact on the secondhand electronics industry, particularly with respect to musical equipment. Though METI appears to have done some backpedaling to ease the restrictions on certain "vintage" electronics, the concerns remain.

Organized to raise consumer awareness about "the crisis we are facing now," the exhibit features a display of products provided by TURBO SONIC (a secondhand electronics store specializing in products from the 70s and 80s), as well as art work made from numerous parts that belong to the store.

From the press release: "If there is anyone who feels even slightly uncomfortable about the law, we want you to visit the exhibition and hear your voice."

The exhibit runs from March 24 to April 9. Admission is free.

Read the in-depth Nanzuka Underground press release (English/Japanese) for more information.

China’s body odor databank sniffs out crime

22 Mar 2006

Smell databaseForget about fingerprints and DNA -- the way you smell has been added to the list of biometric data that can be used as personal identification. Police in China are now using body odor data to identify suspects in criminal cases.

A laboratory official at the Nanjing Police Canine Research Center has created a "body odor databank" designed to assist in criminal investigations by matching crime scene odors with the smells of individual criminals. With the cooperation of police, the laboratory is now collecting the odors of people with criminal records. So far, 500 different samples have been collected and registered in the database.

According to the official, clues obtained from smells have played a key role in solving a number of cases. This is because even the craftiest criminals are unable to remove all traces of their odor from a crime scene.

[Source: Nikkei BP]

Housefly gets a new look

21 Mar 2006

Scientists using special laser technology have crafted a pair of mini-spectacles (2 mm) and placed them on the head of a housefly.

Fly dons pair of mini-spectacles

This photograph is part of a science photo exhibit being held in Munich, Germany from March 20 to 25.

[Source: Jiji via Yahoo! Japan]

UPDATE 29/Mar/2006: Needcoffee.com posted a nice story about the origins of this photo.

UPDATE 31/Mar/2006: An old Micreon press release explains the rest.

Pirkus-R, the Bluetooth bot with facial recognition skills

17 Mar 2006

KDDI R&D Laboratories and I Bee, K.K. have upgraded their Bluetooth-enabled bipedal walking robot, named Pirkus-R Type-01, with facial recognition capabilities. Equipped with a built-in CCD camera, the 29-cm (1-foot) tall personal (build-it-yourself) robot can spot faces that it would like to inspect at closer range. Pirkus-R is able to self-correct its direction as it makes its approach, and once it captures a facial image, it can determine whether or not the person is registered in its file.

Pirkus-R Type-01

I Bee was responsible for developing the robot, which can be controlled from an au Bluetooth-enabled handset (W21T/W31T/W41T) using a BREW application. As I Bee continues to develop Pirkus-R?s control and facial recognition technology and the 8-bit CPU that links the robot with the handset, the price (250,000 yen for the deluxe model) may start to come down.

The robot?s facial recognition technology is based on technology that KDDI developed for mobile phones. KDDI has improved upon previous facial recognition technology, which used to require you to position your face directly in front of the camera in order to be recognized. Other problems with the human-robot interaction have been addressed, including lighting-related problems that occurred when capturing images. Pirkus-R is able to automatically detect which direction you are facing, and is no longer at the mercy of variations in lighting conditions. Furthermore, because it is equipped with Bluetooth technology, you can use your BREW-enabled au handset to check Pirkus-R?s operating status and facial recognition results. Of course, you can control it from your phone, too.

Pirkus-R Type-01 is scheduled to appear at the Robo-One fights being held this weekend (March 17 to 19) at Panasonic Center Tokyo.

(See videos here)

UPDATE 31/Mar/2006: Tempusmaster at www.robots-dreams.com has posted video of Pirkus-R in action (sort of) at Robo-One. The video suggests a need for further improvements to Pirkus-R's facial recognition capabilities. (Link)

[Sources: IT Media, Robot Labs]

The bioluminescent tail of Genji

16 Mar 2006

Scientists have succeeded in unraveling the mystery -- at the protein structure level -- of the mechanism at work in the glowing tail of the "Genji firefly" (Luciola cruciata Motschulsky), which is considered to have the highest luminous efficiency of any known source of light. The results of the joint research carried by the Institute of Physical and Chemical Research (RIKEN) and Kyoto University are to be published in the March 16 edition of the British science journal Nature.

Bioluminescence

By tinkering with the chemical composition of luciferase (a bioluminescent enzyme), the research team succeeded in changing the emission color from its normal greenish-yellow to orange and red. Researchers are now attempting to recreate the blue glow of the sea firefly (Vargula hilgendorfii) and firefly squid (Watasenia scintillans) in order to have all three primary colors at their fingertips.

"This might prove useful in applications such as short-term emergency lighting when no source of electricity or combustion is available," says Kyoto University professor Hiroaki Kato. "Light could be created by mixing up a liquid protein solution."

Anytime energy is converted into light, there is some loss due to heat. Luminous efficiency is a measure of the proportion of energy supplied to a light source that is effectively converted into visible light energy (i.e. the amount not lost to heat or infrared radiation). The luminous efficiency of incandescent light bulbs is around 10%, while fluorescent light is around 20% and LED is around 30%. Firefly tails are significantly higher, at 90%. Scientists were aware that the Genji firefly used luciferase in combination with luciferin (a light-emitting substrate) and adenosine triphosphate (ATP) to produce light, but the detailed workings of the mechanism have until now remained a mystery.

[Sources: Jiji, RIKEN press release]

Hiroshima engineers develop robotic carp

15 Mar 2006

Koi robotRyomei Engineering (a subsidiary of Mitsubishi Heavy Industries), in cooperation with two other Hiroshima-area engineering companies, has developed a robot resembling a koi carp. The robot was demonstrated at a pond on the grounds of Hiroshima Machinery Works.

The robot is modeled after a Nishiki koi carp as a form of tribute to Hiroshima Castle (whose nickname Ri-jo means Koi Castle). The 80-cm (31-inch), 12-kg (26-pound) fish has a white body with bright red spots. Though the tail movement is very smooth and lifelike, the remote-controlled koi is capable of moves that a genuine koi is unable to perform, such as swimming in reverse and rotating in place.

The robot is Ryomei Engineering?s fifth in a line of fish robots that includes a sea bream, a prehistoric coelacanth, and a golden carp. New features added to the robotic koi include a CCD camera built into the head and sensors for analyzing water quality.

UPDATE: Check out the video at Riding Sun!

[Source: Kyodo News]

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