Word: seismographs
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...have materialized. Democrats, beset by their own ethics scandals in West Virginia and Louisiana, have all but abandoned attempts to nationalize corruption as an issue. Even last week's revelation that Abramoff had 82 contacts with Bush adviser Karl Rove registered barely a blip on the capital's political seismograph...
...Those are not reassuring words for a country that continues to get pounded by earthquakes nearly every day, though most are not felt inland. Meteorologist Fauzi says the country only has 30 seismograph detectors for the whole country but hopes to have 160 by 2009. Critics say the country needs to speed up development of a warning system or face the consequences. "You could have 100 tsunamis over the next three years," warns Omar Nawaz, coordinating officer for the World Tourism Organizations's tsunami task force. "That is way too long to wait." Nawaz helped develop a tsunami early-warning...
...Shang Dynasty over 3,000 years ago. In the 2,100 years from the Qin Dynasty to the late Qing Dynasty (that is, from 221 B.C. to 1911), the 27 appearances of Halley's Comet were all recorded in China. Zhang Heng, of the Han Dynasty, invented a seismograph to determine the location of earthquakes, and the celestial globe that showed the movement of the sun, moon and other stars. Mathematicians in the pre-Qin days put forward the proposition known as the Pythagorean theorem in the West today. In the Northern and Southern Dynasties in the 4th century...
...Digital Seismograph is so precise that the unit at Harvard's Oak Ridge Observatory in Harvard, Mass., can detect "marine microseisms"--the "motion of the ground generated by wave action against the entire coastline," Steim says. Units in other locations have also detected volcanic explosions, the sonic wave generated by landing space shuttles and even trucks...
Although there were several attempts to create a global seismograph network in the 1960s and 1970s, Steim says the efforts focused less on science and more on the pressing Cold War need to detect nuclear explosions by measuring their shock waves...