Tasman Bridge disaster
The Tasman Bridge is a bridge that carries the Tasman Highway over the River Derwent in Hobart, Tasmania, Australia. Including approaches, the bridge has a total length of 1,396 metres (4,580 ft) and it provides the main traffic route from the Hobart city centre (on the western shore) to the eastern shore. On 5 January 1975, the Tasman Bridge was struck by the bulk ore carrier Lake Illawarra, bound for EZ Industries' Risdon Zinc Works with a cargo of 9,072 tonnes (10,000 short tons) of zinc concentrate. It caused two pylons and three sections of concrete decking, totalling 127 metres (417 ft), to fall from the bridge and sink the ship. Seven of the ship's crew were killed, and five motorists died when four cars drove over the collapsed sections before the traffic was stopped.
1970 Tonghai earthquake
The 1970 Tonghai earthquake had a moment magnitude of 7.1 and a maximum Mercalli intensity of X (Extreme). The strike-slip rupture originated on the Red River Fault, which had not experienced an earthquake above magnitude 7 since 1700, and affected Tonghai County, Yunnan province, China. At least 10,000 people were killed, making it one of the deadliest in its decade. The tremor caused between US$5 and $25 million in damage, and felt over an area of 8,781 km2 (3,390 sq mi). In Hanoi, North Vietnam, almost 483 km (300 mi) from the epicenter, victims left their homes as the rupture rumbled through the city.
Golden Gate Bridge construction started
Located in San Fransisco, Golden Gate Bridge is a suspension bridge spanning the Golden Gate, the one-mile-wide (1.6 km) strait connecting San Francisco Bay and the Pacific Ocean. It is made of steel, is 1.7 miles (2.7 km) long, and its longest span is 0.79 miles (1.28 km). Recognized by the American Society of Civil Engineers as one of the Wonders of the Modern World, the bridge is one of the most internationally recognized symbols of San Francisco and California. It was both the longest and the tallest suspension bridge in the world at the time of its opening.
Markus Reiner was born
Markus Reiner was an Israeli scientist and a major figure in rheology. Reiner was not only a major figure in rheology, he along with Eugene C. Bingham coined the term and founded a society for its study. As well as the term rheology, and his publications, he is known for the Buckingham-Reiner Equation, the Reiner-Riwlin Equation, and Reiner-Rivlin fluids, the Deborah number and the Teapot effect.
