Archives: ‘Sci/Tech’ Category

Mysterious tadpole rain in Japan (pics)

10 Jun 2009

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* Read -- UPDATE: Tadpole rain in Japan
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As rainy season approaches, Japan's Ishikawa prefecture has been receiving some unusual precipitation -- it's been raining tadpoles.

Raining tadpoles --

According to prefecture officials, tadpoles have reportedly fallen from the sky in two separate towns this month. Although it is not unheard of for waterspouts and strong wind to to pull small fish and animals from water and drop them on land, no foul weather has been observed in the area, leaving residents baffled.

The first reported case of anomalous tadpole rain occurred at about 4:30 PM on June 4 in the town of Nanao. After hearing a strange sound outside the Nakajima Civic Center, witnesses discovered approximately 100 dead tadpoles in a 300 square meter area in and around the parking lot. The tadpoles measured 2 to 3 centimeters long.

Raining tadpoles --
Tadpoles on car windshield outside Nakajima Civic Center

Dozens more tadpoles reportedly fell on the nearby town of Hakusan in the early morning hours of June 6, according to local officials. One 75-year-old resident described finding a handful of tadpoles on the hood of her car at around 7:00 AM. Others were found scattered in nearby yards and parking lots. A strange sound was reportedly heard in the middle of the night, even though no wind or rain was observed.

According to Kanazawa Meteorological Observatory officials, the two towns -- which are dotted with rice fields -- experienced stable weather during the period in question and the conditions were not favorable for the development of waterspouts.

"I've never seen anything like this before," said one meteorologist. "We have no idea what caused it."

[Source: Sankei]

UPDATE: Asahi is reporting that more freak animal rain may have fallen in Ishikawa prefecture, only this time it is fish.

Raining fish in Japan -- Raining fish in Japan --
Crucian carp believed to have fallen from the sky in Ishikawa prefecture

On the evening of June 9 in the town of Nakanoto located about 15 kilometers from Nanao (where it rained tadpoles on June 4), a number of small fish were found scattered over a residential area. About 10 fish recovered from roadsides and the tops of cars appear to be Crucian carp measuring 3 to 5 centimeters long.

Video: Space stunts

09 Jun 2009

Astronaut Koichi Wakata, who has been living aboard the International Space Station since mid-March, has carried out a series of offbeat space experiments proposed by the Japanese public.


+ Video

The experiments, which the Japan Aerospace Exploration Agency (JAXA) has dubbed "Try Zero-G," consist mainly of physical exercises and gymnastics (including calisthenics, push-ups, flips, twirls, cartwheels, overhead soccer kicks, and swimming). In addition, Wakata folds clothes, rides a ?magic carpet,? squirts water from a syringe, puts eyedrops in his eye, and attempts to propel himself through the room by flapping a fan. He also enlists the help of a fellow astronaut for some arm wrestling, hand-shaking, slap sumo, and tug of war.

[Soundtrack: "Seashell" by Skylab (from the "Skylab#1" CD)]

Low-altitude video of lunar surface (in HD)

05 Jun 2009

In its final days before crashing into the surface of the moon on June 11, Japan's KAGUYA explorer has been shooting high-definition footage of the lunar terrain from low altitude.

The Japan Aerospace Exploration Agency (JAXA), which operates the HD camera-equipped probe along with public broadcaster NHK, has uploaded two videos on YouTube.

The first video (embedded above) was shot from an altitude of about 11 kilometers (7 miles) up, at between 45 and 52 degrees south latitude and 262 and 263 degrees east longitude.

The second video, which offers a view of the Antoniadi lunar crater, was shot from an altitude of about 21 kilometers (13 miles) up, at between 64 and 70 degrees south latitude and 186 and 188 degrees east longitude.

After its launch in late 2007, KAGUYA started in orbit about 100 kilometers (62 miles) above the moon. In February 2009 the probe dropped to an altitude of 50 kilometers (31 miles), and in April it dropped to between 10 and 30 kilometers (6 - 19 miles).

The KAGUYA probe will end its scientific exploration of the moon with a controlled impact on the lunar surface. The crash, scheduled for 3:30 AM (Japan standard time) on June 11, 2009 (6:30 PM GMT on June 10, 2009), will occur in the shadow on the near side of the moon, at 63 degrees south latitude and 80 degrees east longitude.

Map showing location of KAGUYA's impact --
The red star shows where KAGUYA is expected to crash

JAXA has not announced whether the probe will film its own demise.

[Link: JAXA // YouTube]

Ultra-futuristic concept vehicles

26 May 2009

What will automobiles look like 50 years down the road? If they turn out to be anything like these concepts from the design studios of four major automakers, we are in for quite a ride.

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- Mazda Motonari RX

Mazda Motonari RX --
Mazda Motonari RX [+]

In Mazda's vision of the late 2050s, advances in molecular engineering have rendered metal-based manufacturing obsolete. The rise of ubiquitous computing and artificial intelligence drastically accelerates the automotive production cycle. Cars are cheap, lightweight (around 200 lbs, or less than 100 kg), and equipped with intelligent crash avoidance systems that eliminate traffic accidents. However, people still manage to get speeding tickets.

Mazda Motonari RX --
[+]

The Mazda Motonari RX -- which takes its name from the legendary Japanese warrior Mori Motonari -- interfaces seamlessly with the driver to function as an extension of the body.

Mazda Motonari RX --

The vehicle drives sort of like a street luge. Acceleration and direction is determined by two armrest mounted control points, and the vehicle's exoskeletal frame shape-shifts in accordance with the position of the driver's arms and legs when enveloped in the seat.

Mazda Motonari RX --
Omni wheels

Four omnidirectional wheels allow 360 degrees of movement, and the tread expands or contracts to suit the driving conditions.

Mazda Motonari RX --
[+]

A "haptic skin" suit consisting of millions of microscopic actuators enables the driver to experience the road psycho-somatically while receiving electrical muscle stimulation from the onboard AI guidance system (or other remotely located drivers).

Mazda Motonari RX --
[+]

The vehicle's entire structure is comprised of a 100% reprototypable, carbon nanotube/shape memory alloy weave with a photovoltaic coating, which allows the vehicle to mimic the driver's body movements while powering the in-wheel electrostatic motors. [More]

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- Toyota Biomobile Mecha

In Toyota's vision of the late 2050s, cities have developed vertically due to limited area on the ground, leading the transportation industry to develop new vehicles capable of navigating vertical space.

Toyota Biomobile Mecha --
Toyota Biomobile Mecha [+]

Toyota's Biomobile Mecha, a shape-shifting vehicle with nano-laser wheels, can read and adapt to changes in the environment and travel vertical pathways by means of biomimetic feet with powerful suction.

Toyota Biomobile Mecha --
[+]

In addition, the Biomobile Mecha is powered by pollution. A special skin derives energy from harmful substances in the air, so the vehicle never runs out of fuel (as long as the future skies remain polluted) and restores balance to the environment while it goes.

Toyota Biomobile Mecha --
[+]

The real-time strategic navigation planning system, which reads the environment via a 3D scanner, gives the vehicle "instincts" that enable it to autonomously adapt to the driving environment.

Toyota Biomobile Mecha --
[+]

Advanced nanotechnology enables the vehicle to expand and contract its structure horizontally and vertically as needed, allowing it to serve as a compact commuter, an aerodynamic performance vehicle, or even as a temporary dwelling. [More]

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- Nissan OneOne

In Nissan's vision of the 2050s, robots have become an integral part of our lives, blurring the line between humans and machines. The Nissan OneOne combines personal mobility with the family robot concept.

Nissan OneOne --
[+]

Billed as the ultimate pet, the Nissan OneOne (pronounced "wan-wan," the Japanese sound for a barking dog) is a friendly, helpful member of the family of the future. Able to operate autonomously without a driver, the GPS-guided vehicle can help out by picking up the dry cleaning, fetching the groceries, and taking the kids to school.

Nissan OneOne --
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OneOne propels itself forward by flexing and relaxing synthetic polymer muscles in its "legs," much as you would if skating on roller blades.

Nissan OneOne --
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The vehicle can also assume various positions depending on the driving environment. It reclines to achieve greater speed, and it stands up to increase visibility and squeeze into tight spaces. [More]

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- Honda 124 (One to the Power of Four)

In Honda's vision of the 2050s, people have flocked back to the suburbs, fueling consumer demand for a truly flexible commuter vehicle.

Honda 124 --
Honda 124 [+]

The solar-hybrid powered Honda 124 (One to the Power of Four) is an energy-efficient, modular vehicle that can separate into four different fully functional units, each uniquely suited for specific driving conditions.

Honda 124 --
[+]

A combination of robotics, artificial intelligence and molecular engineering (which enables the body panels to be reshaped according to use) allow each module to instinctively reconfigure itself and operate as a fully functional unit. Two of the modules are suitable for short-distance inner-city driving, while the other two are ideal for longer distances at higher speeds.

Honda 124 --
[+]

Because the Honda 124 consists of multiple units that can be joined together, carpoolers can take advantage of HOV lanes and share commuting costs. [More]

KOBIAN: Emotional humanoid robot (pics/video)

22 May 2009

KOBIAN --
Surprise

Researchers from Waseda University have teamed up with Kyushu-based robot manufacturer tmsuk to develop a humanoid robot that uses its entire body to express a variety of emotions. (Watch video.)

Named "KOBIAN," the android integrates features of two previously developed robots -- the WABIAN-2 bipedal humanoid and the WE-4RII emotion expression humanoid -- into a bipedal machine that can walk around, perceive its environment, perform physical tasks, and express a range of emotions. The robot also features a new double-jointed neck that helps it achieve more expressive postures.

KOBIAN --
Delight

KOBIAN can express seven different feelings, including delight, surprise, sadness and dislike. In addition to assuming different poses to match the mood, the emotional humanoid uses motors in its face to move its lips, eyelids and eyebrows into various positions. To express delight, for example, the robot lifts its soft rubbery hands over its head and opens its eyes and mouth wide.

KOBIAN --
Sadness

To show sadness, the robot slouches over, hangs its head down and holds a hand up to its face in a gesture of grief.

KOBIAN --
Aversion

According to KOBIAN's developers, the robot's expressiveness makes it better equipped to interact with humans and assist with daily activities. In the future, the robot may seek work in the field of nursing.

[Source: Nikkei Net // Photos, video: Robot Watch]

Gov’t to track citizens, prevent pandemic

19 May 2009

H1N1 --

Can GPS tracking technology prevent a swine flu pandemic? Japan's Ministry of Internal Affairs and Communications hopes to find out this autumn by testing a mobile phone-based GPS tracking system that constantly monitors each individual's location and sends text alerts to participants if they cross paths with anyone who is later identified as a flu victim.

The proposed system relies on mobile phone providers to constantly track the subjects' geographical locations and keep chronological records of their movements in a database. When a person is labeled as "infected," all the past location data in the database is analyzed to determine whether or not anyone came within close proximity to the infected individual.

The system will know, for example, whether or not you once boarded the same train or sat in the same movie theater as the infected individual, and it will send you a text message containing the details of the close encounter. The text messages will also provide instructions on specific measures to take in response.

The primary purpose of the test, which will involve about 2,000 volunteers in both urban and rural areas, is to verify the precision of GPS tracking technology, estimate the potential costs of operating such a system, and determine whether or not such a system can be put into practical use.

To be of any real use in a place like Tokyo, a phone-based disease-tracking system would require the participation of hundreds of thousands, if not millions, of subscribers willing to have their locations tracked -- not a stretch given the popularity of wireless services such as NTT DoCoMo's "iConcier," which provides personalized, concierge-like services to individual mobile phones based on location data, shopping history, and other personal information.

From a privacy standpoint, opinions differ on the degree to which sensitive personal data such as location and travel history should be shared and used. With this in mind, the ministry will also explore the issue of psychological resistance to the use of personal information.

[Source: Asahi]

19th-century pregnant dolls

12 May 2009

Edo-period obstetric training doll, Japan --
19th-century obstetric training doll - Wada Museum [+]

In the 18th and 19th centuries, sideshow carnivals known as misemono were a popular form of entertainment for the sophisticated residents of Edo (present-day Tokyo). The sideshows featured a myriad of educational and entertaining attractions designed to evoke a sense of wonder and satisfy a deep curiosity for the mysteries of life. One popular attraction was the pregnant doll.

Vintage wooden pregnant mannequin, Japan --
"Light-skinned" pregnant doll - Edo-Tokyo Museum [+]

Although it is commonly believed that these dolls were created primarily to teach midwives how to deliver babies, evidence suggests they were also used for entertainment purposes.

Edo-era obstetric doll, Japan --
"Dark-skinned" pregnant doll - Edo-Tokyo Museum [+]

For example, records from 1864 describe a popular show in Tokyo's Asakusa entertainment district that educated audiences about the human body. The show featured a pregnant doll whose abdomen could be opened to reveal fetal models depicting the various stages of prenatal development.

Old wooden baby dolls, Japan --
Baby doll - Edo-Tokyo Museum [+]

Similarly, records of Japan's first national industrial exhibition in 1877 indicate a Yamagata prefecture hospital doctor named Motoyoshi Hasegawa showed off an elaborate set of fetus models illustrating seven different stages of growth, from embryo to birth.

Japanese pregnancy manikin, Japan --
Fetus model set (circa 1877) - Toyota Collection [+]

Although it is unclear whether the fetus model set pictured here is the same one Hasegawa showed in 1877, records suggest his model was a hit at the exhibition.

[Source: Geijutsu Shincho magazine, July 2001]

Saya-sensei: Synthetic substitute teacher

08 May 2009

Saya humanoid robot teacher --

Upon returning to class after the Golden Week holidays, students at a Tokyo elementary school were delighted to find their teacher had been replaced by a robot. The talking humanoid, named "Saya," was originally developed as a receptionist robot in 2004 by professor Hiroshi Kobayashi of the Tokyo University of Science, but has recently begun taking on work as a substitute teacher.

Saya humanoid robot teacher --
Amused students poke Saya's soft face

The robot, which can speak multiple languages, uses facial expressions to facilitate communication. With an array of motors in her head that stretch the soft synthetic skin into various positions, Saya can display emotions ranging from happiness and surprise to sadness and anger.

However, Saya needs to work on improving her classroom management skills. At present, she can't do much more than call out names and shout orders like "Be quiet." But that does not make her any less popular with the kids.

Saya humanoid robot teacher --

"Robots that look human tend to be a big hit with young children and the elderly," Kobayashi recently told the Associated Press. "Children even start crying when they are scolded."

[Source: Sankei]

Fukitorimushi: Autonomous floor-wiping robot

07 May 2009

Fukitorimushi --

Move over, Roomba. Make way for Fukitorimushi, an autonomous floor-cleaning robot that crawls like an inchworm and uses a super-absorbent nanofiber cloth to wipe up microscopic dust and residue that ordinary vacuums leave behind. Unveiled at the recent Tokyo Fiber Senseware exposition in Milan, Fukitorimushi (lit. "wipe-up bug") is designed by Panasonic and incorporates nanofiber technology developed by textile maker Teijin, Ltd.

The robot cleans by simply dragging its nanocloth belly across the floor as it slowly crawls around in search of dirt. (Watch the video.)

Fukitorimushi, which moves around by flexing and stretching its body like an inchworm, uses "feelers" of blue-white light to search for floor grime. When it finds a dirty spot, the robot emits a red light and devotes extra effort to cleaning that area. After it has finished cleaning, the machine returns to its charging station to replenish its battery.

Fukitorimushi's body is covered in Teijin's Nanofront cloth, which is made of polyester filament fibers measuring 700 nanometers in diameter (about 7,500 times thinner than the average human hair). The nanofibers significantly increase the fabric's surface area and porosity, giving it superior wiping characteristics and the ability to absorb oil and ultra-fine dust particles less than one micron in diameter. The large surface contact area also increases the fabric's friction with the floor and makes it resistant to sliding. The robot relies on this increased friction to push itself forward while wiping the floor.

Fukitorimushi --

According to its creators, Fukitorimushi is also designed to engage the emotions and foster a closer relationship between humans and machines. The way the machine creeps across the floor may seem a little strange at first, but the designers say people tend to grow fond of the robotic creature after watching it for a while. In addition, the owner must periodically replace Fukitorimushi's nanocloth cover with a clean one. The designers suggest this task of looking after the Fukitorimushi may encourage a pet-like affection for the machine.

[Link: Tokyo Fiber '09 Senseware Guide (PDF)]