Dr. Tsuboyama-Kasaoka Nobuyo, Head of Section of Global Disaster Nutrition at the National Institute of Health and Nutrition in Japan talks about space food and disaster food — Interviewed by the vesta editorial team. Challenges in space and disaster nutrition research I have always been interested in space and have tried to become an astronaut three times in the last 25 years. Because my parents were mountain climbers, I have been going to high altitudes since I was a child, while scuba diving has challenged me in the depths of the ocean, so I wanted to try the most extreme space. As you can see from the fact that you can get altitude sickness when you climb a mountain or submarine sickness when you dive in the ocean, you can really feel the changes in your body when you go to a special environment. ... ... [Read more]

  A number of tenmoku tea bowls[1] were brought to Japan from China during the Kamakura period (1185–1333) and have been carefully passed down ever since. Among them, the most highly valued are the small number of “Yuteki Tenmoku[2]” and “Yohen Tenmoku[3]” tea bowls, designated as national treasures, which have unique oil spots and luster. This luster has been a great mystery not only to the potters who have tried to reproduce it, but also to researchers. In contrast to the previous theory that the luster is actually thin-film interference on the surface of the tea bowl, RIKEN researcher Ebizuka Noboru has proposed a new theory that the luster of the national treasure Yuteki Tenmoku tea bowl can be reasonably explained by the overlapping of light (multiple interference) caused by two-dimensional sine curve wrinkles. Discovering the National Treasure Yuteki Tenmoku tea bowl Whenever a ... ... [Read more]

  Manabe Syukuro, recipient of the Nobel Prize in Physics, interviewed at his home: Learn from your rivals and play to your strengths – the world-renowned 90-year-old authority shares the secrets to reaching the pinnacle of achievement Interviewed by Tsuyama Keiko, journalist When I look back on it, my life as a researcher has been a string of good luck. A paper I wrote back in graduate school happened to catch the attention of an American researcher and I was invited to the US. Then, at a research institute in the US, I was blessed with good supervisors and staff in a positive environment, and I was able to immerse myself in research with full access to a supercomputer. That string of good luck continued all the way to receiving the Nobel Prize, but it truly came as a surprise. When you look at ... ... [Read more]

Key Points Cultivating relationships of trust between politicians and expert groups The shift of science and technology patrons from the state to the private sector How ideas from ordinary people can make up for the limitations of experts The spread of COVID-19 has brought a major issue to the fore: what is the right relationship between political judgment and scientific knowledge, or between politicians and experts? We are often finding the opinions of experts grounded in scientific knowledge to be at odds with the decision-making of politicians. This issue is not limited to Japan; it is causing great confusion around the world, including in European countries. It is also not something that sprung up overnight. In Japan’s case, after the accident at Tokyo Electric Power Company’s Fukushima Daiichi nuclear power plant (the “NPP accident”) caused by the Great East Japan Earthquake in 2011, similar ... ... [Read more]

Tsuda Yuichi, Professor at the Institute of Space and Astronautical Science (ISAS), the Japan Aerospace Exploration Agency (JAXA) Interview and text by Yamane Kazuma, nonfiction writer     On a visit to the Institute of Space and Astronautical Science (ISAS) and the Japan Aerospace Exploration Agency (JAXA) in Sagamihara City, Kanagawa Prefecture on December 18, 2020, Hagiuda Koichi, Minister of Education, Culture, Sports, Science and Technology, announced some good news at the press conference. “The capsule brought back by Hayabusa2 contains approximately 5.4 grams of soil samples collected from the asteroid Ryugu. This world-class technology has collected an amount that is fifty times above the target of 0.1 gram.” The first-generation Hayabusa was the first time since the moon landings for humanity to achieve the spectacular feat of bringing back a sample from a celestial body, but that sample was no more than three ... ... [Read more]

The diverse staff that made possible the “reenactment” Kawabata Hiroto　The logboat (dug-out canoe) carrying five persons that set out from eastern Taiwan on July 7, 2019 reached Yonaguni Island in Okinawa after 45 hours. I’m so happy everyone in the crew made it there safely. Kaifu Yousuke　Thank you. Kawabata　I have previously written Wareware wa naze wareware-dake nanoka―Ajia kara kieta tayona ‘Jinrui’ tachi (Lost in Evolution: Exploring Humanity’s Path in Asia) under Dr. Kaifu’s supervision, and am well aware of the general outline of the Holistic Reenactment Project of the Voyage 30,000 Years Ago since I’ve supported the crowdfunding, but could you please explain it briefly to our readers? Kaifu　Certainly. First of all, we believe that Homo sapiens, who emerged in Africa, came to the Japanese islands via three routes. That’s the route from Sakhalin to Hokkaido, the route from the Korean peninsula via Tsushima ... ... [Read more]

Reconsidering the question: “What is Scientific Research?” More than thirty years ago, as a scholar interested in science and technology policy, I read a large number of articles and publications.  At that time, I believe, a particular assumption underlay this discourse on science; namely, that science stood aloof as if it were a completely independent kingdom within academia. It seems that this naive perception existed naturally both among scientists engrossed in actual science in the laboratory and among the general public, who we can expect to enjoy the fruits of science. Among those who debate science and technology policies, this assumption fell apart a long time ago. Yet, for ordinary people, “science” is still a far off thing. It continues to be an object of worship, criticized with warnings against excessive expectations, and something special and separate. Whether it is celebratory news such as ... ... [Read more]

The albatross is a group of birds at high risk of extinction. The reasons for this are thought to include a decreased survival rate of parent birds due to bycatching during fishing. To date, the research of incidental by-catch risk and the evaluation of the efficiency of by-catch mitigation techniques relied on observations from boats. Data obtained in this way however contains bias. Biologging can be used to collect useful data for albatross conservation, such as an overlap of the distribution of albatross and fishing grounds, the fishing boat following behavior of albatross, and the dynamics of wintering areas. 1.Use of biologging The study of seabird behavior on the ocean has advanced rapidly thanks to biologging: field research techniques to collect information of the location and behavior of individual animals by attaching a small data recording device known as a “data logger.” Some devices ... ... [Read more]

At one time, Short-tailed Albatrosses formed large breeding colonies on Torishima in the Izu Islands and in the Ogasawara Islands, in the Daito Islands, the Senkaku Islands, and other islands near Tai-wan. Due to the collection of feathers, for which there was high foreign demand, from the mid-Meiji period (1868–1912) these albatrosses were overhunted, and in 1949 it was reported that they were extinct. In 1951, however, they were rediscovered when around ten birds were found to have survived on Torishima. Following this, in 1954 Japan established a national Wildlife Protection Area that covered the whole of Torishima (453 ha); in 1958, the short-tailed albatross was designated a national Natural Monument; and in 1962, it was promoted to a Special Natural Monument. Additionally, in 1965 the whole of Torishima was designated a Natural Monument (Natural Protected Area) in its capacity as a breeding site, ... ... [Read more]

Key Points Japanese plutonium is difficult to convert into atomic bombs It is urgently necessary to build a system that makes full use of plutonium as fuel China and Russia are being proactive regarding fast breeder reactors to secure resources There is an activity that involves collecting gold and rare metals from used mobile phones. A variety of metals and semiconductors are used for mobile phones and include a small quantity of toxic substances. They are simply rubbish if they are thrown away as they are. But if you extract gold from them in order to classify them into metals and plastics, you can reduce the quantity of rubbish. This is called urban mining. In Japan, the gold extracted will be utilized for the medals for the Tokyo Olympic and Paralympic Games in 2020. The fuel that has generated a large quantity of electricity ... ... [Read more]