Science View - 2012/11/22

Nov. 22, Thu.
The Kunimasu:
The Amazing Story of a Fish Back From Extinction
J-Innovators:A Revolution in Soy Sauce Containers
J-Innovator Katsunori Futase and Michelle Yamamoto
Soy sauce being poured from the container developed by this week's J-Innovator

J-Innovators:
A Revolution in Soy Sauce Containers

Soy sauce is an essential condiment in Japanese food. But, what color would you say soy sauce is? Most people would probably say black, but in fact, fresh soy sauce is actually red. Oxidation turns in black. This week's innovator has devised an amazing new soy sauce container that preserves not only the color but also the flavor and smell of fresh soy sauce! It makes use of an amazing property of liquids to prevent the sauce from coming in contact with air. Tune in to find out how it's done. We'll also learn about what lead the innovator to develop his product.
Science watcher John Gathright of Chubu University
A photocatalyst that works indoors

Science News Watch:
Indoor Photocatalysis

Science watcher John Gathright brings us news about photocatalysts; substances that, when exposed to sunlight, have anti-bacterial and cleansing properties. But they have one big weakness. They don't work well indoors where ultra-violet light is scarce. A research group including researchers from the University of Tokyo has now made a new kind of photocatalyst by combining it with a certain kind of metal. This new photocatalyst retains its astounding anti-bacterial properties even under fluorescent lights. But that's not all, the catalyst is even capable of neutralizing 99% of exposed viruses in only one hour! Tune in to find out how it works! Photocatalysts could start making their way into your everyday life.
Rena Yamada and John Gathright in the studio
A kunimasu
Lake Saiko where the kunimasu was rediscovered

The Leading Edge:
The Kunimasu: The Amazing Story of a Fish Back From Extinction

In December, 2010, news about of the discovery of a special fish in Lake Saiko in Yamanashi Prefecture spread rapidly across Japan. It was the kunimasu, a relative of the sockeye salmon that was thought to have died out 70 years ago. But what's even more amazing, Lake Saiko was more than 500 kilometers away from where the kunimasu was previous known to live, Lake Tazawako in Akita Prefecture! How did the kunimasu reappear so far away? NHK joined forces with a Kyoto University research team using sonar and underwater cameras to observe the secrets of its habitat and how it survives. Tune into learn the amazing story of how the kunimasu was found 70 years after supposedly going extinct. We've also got rare footage of the kunimasu in the wild.

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