光格子時計を応用、高精度に標高差を測定:火山活動などの地殻変動、精密な監視が可能に(1/2 ページ) 東京大学の香取秀俊教授らによる研究グループは、光格子時計を用い直線距離で約15km離れた2地点間の標高差を精度5cmで測定することに成功した。将来は、火山活動やプレート運動など、地殻変動(標高変化)を精密に監視することも可能になるという。 15km離れた2地点間で標高差精度は5cm 東京大学大学院工学系研究科の香取秀俊教授と国土地理院の研究グループは2016年8月、光格子時計を用いて直線距離で約15km離れた2地点間の標高差を精度5cmで測定することに成功したと発表した。開発成果を用いると、火山活動やプレート運動など、地殻変動(標高変化)を精密に監視することも可能になるという。 光格子時計は光時計の1種で、香取氏が2001年に考案し、2003年に実証した高精度な原子時計である。光格子時計は
A Malaysian oil tanker that went missing has been located near the Indonesian island of Batam, authorities said Wednesday. The MT Vier Harmoni was not hijacked, as authorities initially believed, said Ahmad Puzi Ab Kahar, director-general of the Malaysian Maritime Enforcement Agency. The agency spoke to the captain and confirmed a misunderstanding between the ship’s crew and the operator was behin
BEIJING (Reuters) - China wants to have closer military ties with Syria, state media on Tuesday cited a senior Chinese officer as saying during a rare visit to the war-torn Middle Eastern country. While relying on the region for oil supplies, China tends to leave Middle Eastern diplomacy to the other permanent members of the U.N. Security Council, namely the United States, Britain, France and Russ
Iranian security forces on Tuesday thwarted a cell linked to the Islamic State militant group (ISIS), killing three members and seizing suicide belts and weapons. Authorities killed the three men at a house in the city of Kermanshah, located some 60 miles from the Iraqi border, the governor of the province of the same name, Asadollah Razani, told IRNA state news agency. The governor added that aut
YANGON (Reuters) - Myanmar leader Aung San Suu Kyi is heading to China on Wednesday for what is likely to be her government’s biggest diplomatic test, with the fate of a suspended dam project, backed by China but opposed by many people in Myanmar, in the balance. Myanmar's Foreign Minister Aung San Suu Kyi attends a meeting of ASEAN foreign ministers in Vientiane, Laos July 25, 2016. REUTERS/Jorge
- Source: CNN " data-fave-thumbnails="{"big": { "uri": "https://media.cnn.com/api/v1/images/stellar/prod/160816110309-extremist-cleric-convicted.jpg?q=x_0,y_134,h_810,w_1440,c_crop/h_540,w_960" }, "small": { "uri": "https://media.cnn.com/api/v1/images/stellar/prod/160816110309-extremist-cleric-convicted.jpg?q=x_0,y_134,h_810,w_1440,c_crop/h_540,w_960" } }" data-vr-video="false" data-show-html="" d
- Source: CNN " data-fave-thumbnails="{"big": { "uri": "https://media.cnn.com/api/v1/images/stellar/prod/160816092405-khalid-jabara.jpg?q=x_2,y_0,h_898,w_1596,c_crop/h_540,w_960" }, "small": { "uri": "https://media.cnn.com/api/v1/images/stellar/prod/160816092405-khalid-jabara.jpg?q=x_2,y_0,h_898,w_1596,c_crop/h_540,w_960" } }" data-vr-video="false" data-show-html=" Erin Burnett Out Front " data-by
The BBC's Tom Burridge has been to one of the crossing points to talk to people making the journey. Barbed wire, armed soldiers and several hefty concrete checkpoints. This is how many Ukrainians start and finish their summer holiday in Russian-annexed Crimea. Queues of cars snake for several hours as people wait to visit relatives or get to the peninsula for a beach break. Lorry-loads of watermel
アメリカのバイデン副大統領が「日本の憲法はわれわれが書いた」と発言したことをめぐって、ワシントンの日本大使館は「現行憲法は帝国議会で十分に審議され、有効に議決されたものだが、占領軍の強い影響のもと制定されたものだと考えている」というコメントを出しました。 これについて、ワシントンの日本大使館は16日、NHKの取材に対してコメントを出し、「大統領選挙における発言の逐一に見解を述べるのは適切でなく、差し控えたい」と述べました。ただ、「現行憲法は帝国議会で最終的には十分に審議され、有効に議決されたものだが、占領軍当局の強い影響のもと制定されたものだと考えている」と説明しました。 日本政府は「憲法9条は、一切の核兵器の保有や使用をおよそ禁止しているわけではない」とする一方、非核三原則やNPT=核拡散防止条約などにより、「一切の核兵器を保有し得ない」としています。
A protester holds a flag that reads "Hong Kong Independence" near the government's headquarters in Hong Kong on Aug. 5, 2016, during the city's first pro-independence rallyAnthony Wallace—AFP/Getty Images In a further sign of China’s increasingly thin skin when it comes to its freest city, teachers in Hong Kong were warned this week that calling for the semiautonomous territory’s independence in s
Mahircan Yucel is one of about 1,300 ethnic Kurds who have settled in Kawaguchi, an industrial city north of Tokyo, and in the neighboring city of Warabi. Their plight offers a stark illustration of Japan’s approach to refugees.Credit...Ko Sasaki for The New York Times KAWAGUCHI, Japan — Mahircan Yucel moved to Japan a dozen years ago as a teenager fleeing sectarian violence in Turkey. He learned
PORT-AU-PRINCE (Reuters) - Haiti has identified its first case of the birth defect microcephaly linked to the Zika virus, a senior health ministry official said on Tuesday. Gabriel Thimothe, director general at the ministry of public health and population, said the case was confirmed on Saturday by the U.S. Centers for Disease Control and Prevention (CDC). Haiti has confirmed 14 cases of the birth
Google is making a number of announcements around its Cloud Platform today. Most of these focus on its various cloud database services, but the company is also making a major update to its low-cost Nearline cloud storage service for cold data, making its disk volumes faster, and allowing its users to bring their own encryption keys to Cloud Storage. The overall message Google is clearly trying to
Ford plans to make self-driving cars for commercial ride-sharing or on-demand taxi services by 2021, a target the automaker says it will reach by expanding its Silicon Valley research lab as well as investing in or buying autonomous vehicle technology startups. One of those investments—$75 million in Velodyne LiDAR, the leading supplier of technology that lets self-driving cars see and avoid what’
MOSCOW (Reuters) - Ukraine says it thinks Vladimir Putin is planning a new invasion, and it’s not hard to see why: the Russian leader has built up troops on its border and resumed the hostile rhetoric that preceded his annexation of Crimea two years ago. Russian President Vladimir Putin speaks to Azerbaijan's President Ilham Aliyev (not seen) during their meeting in Baku, Azerbaijan, August 8, 201
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Anjem Choudary, one of the most notorious hate preachers living in Britain, is facing jail after being found guilty of supporting Islamic State. Having avoided arrest for years despite his apparent sympathy for extremism and links to some of Britain’s most notorious terrorists, Choudary was convicted at the Old Bailey after jurors heard he had sworn an oath of allegiance to Isis. Who is Anjem Chou
- Source: CNN " data-fave-thumbnails="{"big": { "uri": "https://media.cnn.com/api/v1/images/stellar/prod/160812163817-aleppo-red-cross-jones-maurer-intv-00010708.jpg?q=x_445,y_153,h_619,w_1100,c_crop/h_540,w_960" }, "small": { "uri": "https://media.cnn.com/api/v1/images/stellar/prod/160812163817-aleppo-red-cross-jones-maurer-intv-00010708.jpg?q=x_445,y_153,h_619,w_1100,c_crop/h_540,w_960" } }" dat
Exclusive: Civil war costs Yemen $14 billion in damage and economic losses - report WASHINGTON (Reuters) - The cost from damage to infrastructure and economic losses in Yemen’s civil war is more than $14 billion so far, according to a confidential report seen by Reuters that highlights the effort needed to rebuild the country, where more than half the population is suffering from malnutrition. “Th
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