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3D-printed structure of ancient bridge made
A 3D-printed concrete bridge modeled on a 1,400-year-old stone arch bridge has been unveiled in Tianjin. About half the size of the Zhaozhou Bridge, the world’s oldest open-spandrel segmental stone arch bridge, the 28-meter-long 3D structure was created by a research team from Hebei University of Technology. The Zhaozhou Bridge, also known as Anji Bridge, stands over the Xiaohe River in Zhaoxian county in Hebei province. It was built in the Sui Dynasty (581-618). “Compared with traditional engineering, 3D concrete printing technology can save around one-third of construction materials and two-thirds of human labor,” said Ma Guowei, who led the project. The technology can also be applied in ancient building protection and restoration, he said.
Singer sets record for ‘highest’ show
Actress and singer Karen Mok was awarded a Guinness World Record for a solo concert at the highest altitude in Lhasa, capital of the Tibet autonomous region. The two-hour show was held at a sports center at an altitude of about 3,650 meters on Saturday. Before the end of the performance, an official Guinness record certifier took to the stage and announced that Mok had set a new world record for a concert at the highest altitude. Other than altitude, the record had to meet two other criteria: there had to be at least 10,000 tickets sold and the concert had to last more than an hour. Check more posts online.