Of course, there are more popular souvenirs bought in Rome, such as the tourist attractions in the historic center: Piazza Navona, Piazza di Spagna, and Piazza del Popolo, but the Colosseum beats them all. No foreign tourist who visits Rome leaves without a souvenir from the Colosseum, be it a statuette, a keyring, a postcard, or something else.
Matryoshkas are typically Russian and symbolize the folk art of this nation. It’s a specific set of wooden dolls of different sizes, which can be opened and one housed inside the other. The contenders must be exclusively men and are often quite overweight.
But, apparently, the favorite souvenir that tourists take home is a statuette or keychain of the Sumo wrestler, a typical Japanese sport in which there is a hand-to-hand fight. Japan, as we know, is a nation known for many things. Hard Rock Cafè T-Shirt – All Around the World With the aim of making the world more convenient and eco-friendly, Japan will continue along this path to seek new innovations. That’s why I want young researchers to find projects that will benefit society and aggressively pursue them,” states Sagawa.
We can solve extremely large problems through the innovation of materials. “Materials have been the backbone supporting civilizations from time immemorial. According to data for 2017, Japanese companies accounted for at least 60% of the global market for up to 70 advanced materials used in high-tech fields. Japan has developed technological innovations not only in magnets, but also in such materials as carbon fiber and high-tensile steel, which play crucial roles in creating products in a broad range of fields. Under such circumstances, even the slightest improvement in motor efficiency will contribute substantially to carbon neutrality,” he says. The widespread use of electric vehicles will only result in further consumption. “Motors consume almost half of the world’s electricity. This magnet also has the potential to improve energy efficiency through properties that help keep the temperature of the motor from rising. He recently succeeded in substantially reducing the magnet’s ratio of dysprosium-a heavy rare-earth element in particularly scarce supply-while enhancing its strength. Now aged 78, Sagawa can still be found at the frontline of development working to improve the neodymium magnet. Even now, nearly four decades later, there is no magnet that can surpass it.Ī major feature of the neodymium magnet (left) is its strong magnetic force it is about 10 times stronger than a ferrite magnet (right), the most widely used magnet in the world, including for daily necessities. Spurred on by the advantages of its low cost and having twice the magnetic force of the samarium-cobalt magnet, applications of the neodymium magnet spread rapidly. But believing that such a magnet would surely contribute to the world, he continued to persist with his work, and in 1982, after joining Sumitomo Special Metals (now Hitachi Metals), he succeeded in developing the neodymium magnet. He didn’t receive the go-ahead from his company to develop an iron-based magnet, however, since the element was considered unsuitable for making a super-strong magnet. Pursuing a hunch that excellent magnets could be made from iron- less expensive and more plentiful than cobalt-Sagawa began conducting his own research in that direction while working on developments such as samarium-cobalt magnets at a major Japanese electronics manufacturer. “To have something I devised myself be of such benefit to society-I couldn’t be happier,” he adds.īack in the day when the strongest magnets were deemed to be those made mainly from the two basic elements of samarium and cobalt, Sagawa turned his attention to iron.
In February 2022, he was awarded the Queen Elizabeth Prize for Engineering-one of engineering’s most prestigious awards, honoring bold, groundbreaking innovations that are of global benefit to humanity-for developing the world’s most powerful permanent magnet, which has been transformational for its contribution towards enabling cleaner, energy-saving technologies. “I didn’t think it would be used so widely,” says SAGAWA Masato, the Japanese scientist who developed the magnet in 1982. AFLO (top right photo) SHUTTERSTOCK (center, bottom left, and bottom right) EYEEM (top left) Their low cost has led to their rapid popularization and has greatly improved performance for a wide range of products: from air conditioners to personal computers, electric vehicles, and wind turbines. Neodymium magnets (center) are mainly composed of iron-an abundantly available and inexpensive substance-along with neodymium and boron.
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