Archives: ‘Sci/Tech’ Category

Murata Seiko-chan robot rides unicycle

24 Sep 2008

*Updated with video:

Electronic parts maker Murata Manufacturing Co., Ltd., creators of the popular Murata Seisaku-kun (a.k.a. "Murata Boy") robot bicyclist, have developed a self-balancing robot unicyclist named "Murata Seiko-chan," it was announced on September 23.

MurataSeiko-chan (Murata Girl) robot rides unicycle --

The 50-centimeter (20 in) tall, 5-kilogram (11 lb) Seiko-chan -- which Murata says is modeled after a female kindergartener -- features a pair of gyro sensors that detect her posture angle. A single wheel moves the robot forward and back, and a rotating flywheel in the chest helps turn the unicycle left and right and maintain balance. In addition to ultrasonic sensors that detect and measure the distance to potential obstacles, Seiko-chan is equipped with built-in Bluetooth capabilities and an embedded camera that transmits live video.

According to Murata's press release, Seiko-chan is described as Seisaku-kun's younger paternal cousin. Born in Shiga prefecture on September 23 (and thus a Virgo), the "active but very shy" robot enjoys practicing her unicycle skills in the park. Her dream is to cycle the world with Seisaku-kun.

In her first public appearance, Seiko-chan will ride alongside Seisaku-kun at Japan's upcoming CEATEC trade show.


(Video of cousin Seisaku-kun demonstrating his bicycling skills)

[Source: Nikkei]

TETRA erasers

20 Sep 2008

Tetra erasers --

These TETRA erasers spotted at the recent Good Design Expo in Tokyo are the perfect editing tool for pencil-pushing tetrapod enthusiasts. Produced by Sun-Star Stationery Co., Ltd., the shapely erasers come in 9 colors and are available at stores like Tokyu Hands for 120 yen (about $1) a pop. Pile them on your desk to inspire daydreams of the beach in Japan.

Tetra erasers --

Hei Helsinki

09 Sep 2008

Nokia --

Pink Tentacle is hitting the skies this week to participate in the 2008 Nokia Open Lab workshop in Helsinki, Finland, where dozens of selected bloggers and social media participants from across the globe will converge to discuss the future of mobile technology. Topics on the agenda include the future of content creation, location aware solutions, entertainment, and the use of emerging technologies in working life. Sounds intriguing.

Give me a shout if you'd like to stay up to date on the happenings. Or if you know Helsinki, what do you recommend for a taste of the town?

SoftBank Mobile testing smart movie posters

03 Sep 2008

Wall-E --

Japan's first field test of "smart posters" using Near Field Communication (NFC) -- a short-range high-frequency wireless communication technology that lets users view digital content simply by holding their compatible cellphones near the posters -- is being conducted at a Chiba-area shopping mall, it was announced on September 2.

Major phone operator SoftBank Mobile, along with NTT Data, Hitachi and Dutch smart chip maker Gemalto, are testing the technology with WALL-E and Tinker Bell movie posters embedded with NFC tags.

Throughout October, selected test participants will be able to receive and view digital content such as movie stills and trailers simply by holding their NFC-compatible phones (containing NFC-USIM cards) next to the smart posters. Along with the digital content, users also receive an access code that, when transferred to a compatible Hitachi HDTV at home, allows them to view a WALL-E trailer in high definition (via Hitachi's content distribution service).

The tests, which are designed to help the companies evaluate the effectiveness and potential of NFC smart posters as a promotional medium, could be a sign of things to come in the field of poster advertising. Should NFC smart posters become cheap and easy to produce, they have the potential to replace the ubiquitous QR (2D) code that commonly appears in Japanese advertising posters. NFC is seen as more convenient than QR code because the user does not have to scan a code and visit a separate website to view the data. Instead, digital content can be accessed directly with a simple swipe of the phone.

[Source: Nikkei Net, NTT Data]

Explorers to search Himalayas for yeti

15 Aug 2008

Abominable snowman, bigfoot, sasquatch --

Over the next two months, a team of Japanese explorers hopes to obtain indisputable video evidence confirming the existence of the legendary yeti, the mysterious apelike creature long believed to inhabit the Himalayas of Nepal and Tibet.

A 7-member crew of experienced climbers, led by veteran yeti hunter and mountaineer Yoshiteru Takahashi, will depart Japan on August 16. At their destination in the Dhaulagiri mountains in central Nepal, they will establish base camp at an elevation of 4,300 meters (14,000 ft) and set up an array of automated infrared cameras along a ridge. For six weeks, the men and their state-of-the-art motion-sensitive cameras will monitor the area for signs of the yeti.

The expedition is Takahashi's third attempt to find the elusive creature. The 65-year-old mountaineer first became interested in the yeti while on a climbing expedition in the Dhaulagiri region in 1971, after fellow climbers saw a mysterious humanoid creature covered in gray fur that appeared to be about 150 centimeters (5 ft) tall and walked upright. In 1994, when Takahashi returned to the region on his first mission to find the yeti, he reportedly found small humanoid footprints in a mountain cave that had a strong animal scent. In 2003, on his second expedition, Takahashi and his crew found more mysterious footprints and observed the silhouettes of unidentified humanoid creatures from a distance.

In a written statement on the Yeti Project Japan 2008 website, Takahashi describes the yeti sighting that took place in 2003. "Three dark silhouettes were observed at 12:25 PM on September 27, 2003 on the southeast ridge of Gurja Himal," he writes. "They looked almost human and walked upright on two legs."

According to Takahashi, the expedition crew had long expected to lay eyes on a yeti, but the sighting shocked them nonetheless. At the same time, however, the incident brought a sense of relief because it confirmed that the creature was indeed out there somewhere.

Over the years, numerous yeti sightings have been reported in the region. Takahashi's 2003 encounter -- the 4th sighting known to have occurred on the southeast ridge -- strengthened his convictions about the yeti. In a recent interview with the Asahi Shimbun (who, along with Suntory, is a co-sponsor of the current expedition), Takahashi said, "The yeti is not a bear or a monkey. It is definitely an unknown creature that walks on two legs."

Unfortunately, however, the 2003 expedition (whose sponsors included Pepsi, Suntory, Nikon, and the Asahi Shimbun), failed in its goal to produce visual evidence of the yeti's existence.

But now, five years later, Takahashi and his crew are better equipped than ever to capture the yeti on camera, and they are sure they will succeed this time. Takahashi, who believes clear photographs or video of the yeti will pave the way for future scientific research, says, "We are confident we can prove its existence this time, and once we do, we can start working to protect it."

[Sources: Asahi, Yeti Project Japan 2008]

Related: Seven mysterious creatures of Japan

Stretchable circuitry for soft machines

13 Aug 2008

Stretchable electronic circuit -- In a technological advance that opens up new possibilities in the fields of robotics and wearable computing, researchers at the University of Tokyo have developed a stretchable, rubbery material that conducts electricity and can be incorporated into electronic devices.

The researchers -- led by assistant professor Takao Someya of the University of Tokyo -- were able to create elastic electronic circuits that could be stretched up to 1.7 times their original size without affecting performance, thanks to conductive wires made from a new carbon nanotube-polymer composite they developed.

In recent years, scientists have made advances in blending carbon nanotubes (good conductors of electricity) with polymers to make flexible conductive materials, but success has been limited because nanotubes tend to cluster together, causing the composite to harden when too many nanotubes are added. The University of Tokyo researchers were able to overcome this hurdle by mixing the nanotubes with an ionic liquid containing charged particles that keep the nanotubes evenly distributed and prevent them from clumping together. The result is a stretchable material that conducts electricity more than 500 times better than other commercially available carbon nanotube-polymer blends.

With the list of potential uses of stretchable electronic circuits limited only by the imagination, the researchers envision applications ranging from high-tech suits that enhance athletic performance and monitor the wearer's physical condition, to soft machines with flexible mechanical parts. For robots, elastic electronic circuits will enable layers of soft, sensor-laden skin to be stretched tightly across the curves of their bodies, giving them both a more lifelike appearance and greater sensitivity to touch.

The research results were published in the online edition of Science (August 8).

[Link: Yomiuri]

See also: Robot beauty goes skin-deep

Styrofoam dome homes

08 Aug 2008

Styrofoam dome house --
Styrofoam dome houses at Aso Farm Land (Photo by: Erika Snyder)

While styrofoam may be most commonly associated with disposable coffee cups, meat trays and packaging, prefab home manufacturer Japan Dome House Co., Ltd. uses it to construct easy-to-assemble modular kit homes.

Japan Dome House --

Dubbed the "habitat for the 21st century," the Dome House is an igloo-shaped structure built from snap-together wall sections made of 100% expanded polystyrene foam (styrofoam). It might seem like an odd choice of material for a house, but the company lists a number of advantages that styrofoam has over traditional materials. Unlike wood and metal structures, for example, the styrofoam Dome House does not rust, rot or attract termites. It is also highly resistant to earthquakes and typhoons. In addition, the walls, which are treated with a flame retardant, emit no toxic fumes in a fire.

Styrofoam dome house --
Dome House interior

The styrofoam used in the Dome House's 175-millimeter (7 in) thick walls is significantly denser and stronger than ordinary packing foam. The material has excellent thermal insulation properties, resulting in higher energy efficiency and lower heating and cooling costs.

Styrofoam dome house --

Construction of the Dome House shell is quick and easy. The prefabricated pieces, which each weigh about 80 kilograms (175 lbs), can be carried by 2 or 3 people and assembled in a few hours. Once the shell is put together, coats of mortar and paint are applied for further protection from the elements. (Watch a short video of the assembly process.)

Measuring 7.7 meters (25 ft) wide and 3.85 meters (13 ft) tall, the basic Dome House has a floor space of 44.2 square meters (475 sq ft). It is possible to construct larger, elongated domes by adding more pieces, and joint units allow multiple domes to be connected into a single structure.

Dome Houses, which are approved by Japan's Land and Transport Ministry, can be erected anywhere in Japan with the proper permit. According to the manufacturer, the versatile structures are suitable for use as hotel rooms, restaurants, freezer rooms, or even as hog farms.

The Aso Farm Land resort village in Kyushu uses about 480 styrofoam domes as lodging, recreational facilities and retail shops.

Styrofoam dome houses at Aso Farmland Village --
Aso Farm Land

The Dome House can also be used as a bar, karaoke room, steam room, and more.

Japan Dome House --
Styrofoam dome bar

Styrofoam dome house --
Mushroom House karaoke room at Suijin-no-mori hot spring (Oita prefecture)

Styrofoam dome home --
Styrofoam dome steam room

Whether or not this type of home is truly "perfect for the modern age" as the company suggests, the price is right. Dome House kits start at around 3 million yen (under $30,000), which does not include the cost of transport, assembly, interior construction, etc.

[Link: Japan Dome House]

Rare ‘Devil’s Cigar’ fungus discovered in Nara

06 Aug 2008

Chorioactis geaster found in Nara, Japan --

One of the world's rarest fungi, an exotic star-shaped mushroom known to exist at only three locations on Earth, has been discovered in the mountains of Nara prefecture.

The Devil's Cigar (a.k.a. "Texas Star") -- known to botanists as Chorioactis geaster -- had been observed only in central Texas and at two remote locations in Japan prior to the recent discovery in Nara. The peculiar fungus is described as a dark brown cigar-shaped capsule that transforms into a tan-colored star when it splits open to release its spores. It is also one of only a few known fungi that produce an audible hiss when releasing spores.

First reported in 1893 in Austin, Texas, the curious mushroom appears in a limited area of central Texas each year, and until now, the rare sightings in Japan have occurred in forests in Miyazaki and Kochi prefectures. The fungus is included on the red list of threatened species published by Japan's Environment Ministry.

The recent Nara discovery was made by Masakuni Kimura, curator of a natural history museum in the town of Kawakami (Nara prefecture). Kimura first encountered Devil's Cigars in October 2006 while surveying a forest near Kawakami, where he found 12 of them growing from a dead oak tree next to a mountain stream at an elevation of 470 meters (about 1,550 ft). Nearly a year later, in September 2007, he discovered four more of the mushrooms when he returned to the site with Shuichi Kurogi, curator of the Miyazaki Prefectural Museum of Nature and History. Their findings were presented at a recent meeting of the Mycological Society of Japan.

The site of the Nara discovery, like the previous Miyazaki and Kochi sites, is located in a humid forest. At all three sites, the Devil's Cigars were observed growing on dead oak trees near a stream.

Chorioactis geaster in central Texas --
Texas Star, the state fungus of Texas?!

In central Texas (which is located at approximately the same latitude as southern Japan), the rare fungus appears during fall and winter, growing from the stumps and dead roots of cedar elm trees.

Tsuyoshi Hosoya, head botanist at Japan's National Science Museum, says, "The DNA of the Devil's Cigar from Miyazaki is consistent with the one from Texas. They are regarded as the same species."

While it is unknown how this exceedingly rare mushroom came to appear only in Japan and central Texas, one intriguing theory suggests that spores from Japan were swept up in an Asian dust cloud and carried across the globe.

[Sources: Sankei, SAS via Watashi to Tokyo]

See also: Rainy season brings glow-in-the-dark mushrooms

Circuit-bent Pikachu instruments

29 Jul 2008

Circuit-bent Pikachu instruments --

Circuit bender Kaseo has a marvelous collection of musical instruments built from modified Pikachu toys.

- Bent Pikachu Limited Edition: Punk's not dead.

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- Y.M.O.: This "Y.M.O" (Yellow Mouse Orchestra), a group of MIDI-controlled circuit-bent Pikachus, performs a tweaked version of "Rydeen" by the original Y.M.O. (Yellow Magic Orchestra).

* * * * *

- 12 bent Pikachu orchestra +1: Live performance in Tokyo.

* * * * *

[Links: bEnt or diE?, Kaseo's Youtube channel]