EssayEtymologyUncorrected Toru Feb 10, 2019 0 Comments century, emphasize, formal, four, half, novel, quarter-century, sentence, wording Sihan Seiki (四半世紀 – Quarter-Century) Sihan Seiki 四半世紀 Today, I found the expression ‘shihan seiki‘ (四半世紀) when reading a novel. 今日、小説を読んでいると「四半世紀」という言葉を見かけました。 ‘Shi‘ (四) means “four,” Read More
EssayHistoryScienceUncorrected Toru Jul 01, 2016Jan 06, 2024 adjustments, atomic clock, century, Earth's rotation, International Atomic Time, leap second, millisecond, rotation of the Earth, UT1, UTC Leap Second A leap second is a second that is added or deleted so that the difference between UT1 (Universal Time based Read More