Found 0 - 10 results of 10 programs matching keyword " seismic joint"
The Exploratoriums new home has an ace up its sleeve for the next big earthquakea single seismic joint, 300 feet long and two feet wide, will isolate the entire pier structure from the rest of San Francisco. Watch here as the bulkhead at Pier 15 is readied for the installation of the seismic joint. At the southern end of the Golden Gate Bridge, a construction project to rebuild the elevated freeway ramp formerly known as Doyle Drive is underway. Senior bridge engineer John Walters tours us through some of the new seismic technologies being installed, including a seismic joint designed to handle several feet of longitudinal movement and a spherical bearing that allows for three-dimensional movement. Walters also points out a temporary structure built over the historic Presidio Pet Cemetery to protect the grave sites while providing a platform for the construction overhead. The ground under our San Franciscan feet is constantly on the move. Join Exploratorium educator Ken Finn as we visit some spots around town where exposed rocks reveal the tale of an active earth. Dr. Marvin Speece, professor of geophysical engineering at Montana Tech and co-Principal Investigator of the Offshore New Harbor Project, discusses how their expedition collects scientific data. In this audio dispatch, correspondent Saffia Hossainzadeh describes her journey to her team's deep field site via a stop at Siple Dome station. In part one, hear about the difficulties involved in escorting 700 pounds of explosives through Antarctica. In this audio dispatch, correspondent Saffia Hossainzadeh describes her journey to her team's deep field site via a stop at Siple Dome station. In part two, hear about our combat-style landing at Siple Domes remote air strip. Can pets predict earthquakes? Do quakes happen more often at certain times of the day or year? And could a really big one mean the end of California? Exploratorium geologist Eric Muller separates earthquake fact from fiction. Relive the Loma Prieta quake with our photographer, Amy Snyder, who was caught in an outhouse at the beach. Why didn't it, or any San Francisco skyscapers, collapse? Join Exploratorium geologist Eric Muller on a tour of world-famous geological features to be found in the national parkland just north of the Golden Gate bridge. Join the Origins team as they travel to Antarctica. We sent Mary, Noel, Paul, and Julie to explore scientific wonders from McMurdo to the Pole. Learn all about the extreme science being conducted at the South Pole in a daily dispatch from Terra Australis Incognita!