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White House officials said the president wanted to personally thank the pilots and crew members for their work during the ordeal and meet with passengers from the flight. 170

Yes, lawn bowling. It's a real thing and they even have a club. Anyone interested in learning the sport can even get a free lesson with the San Diego Lawn Bowling Club. For more information on lawn bowling, click on the video below:  243

While the true need for the bridge is disputed, it is undeniably an extraordinary feat of engineering.Built to withstand a magnitude eight earthquake, a super typhoon, and strikes by super-sized cargo vessels, it incorporates 400,000 tons of steel -- 4.5 times the amount in San Francisco's Golden Gate Bridge.Guo says the most technically difficult aspect was the construction of a four mile (6.7 kilometer) long submerged tunnel.The tunnel is a crucial component because the Pearl River Delta is one of the busiest shipping areas in the world. According to the Hong Kong-Zhuhai-Macao Bridge Authority over 4,000 vessels -- everything from passenger ferries to container ships -- cruise its waters every day.Guo explains that the tunnel is made of 33 "elements" -- huge hollow blocks measuring 590 feet (180 meters) long, 125 feet (38 meters) wide and 37 feet (11.4 meters) high. Each element weighs 80,000 tons -- about the same as an aircraft carrier. The elements were precast on Guishan Island, near Zhuhai, and transported to the construction site by floating pontoons and tugboats. "We excavated a foundation trench in the sea bed, laid a rock bed, then immersed the elements," he says.The tunnel runs between two artificial islands, each measuring one million square feet (100,000 square meters) and situated in relatively shallow waters. Building islands from scratch didn't prove easy, either, says Xinglin. A structural frame was created using 120 giant, hollow, steel cylinders, each one 180 feet (55 meters) high (equivalent to an 18-story building) and weighing 550 tons -- about the same as an Airbus A380, the world's largest passenger jet."The steel structures were manufactured in a workshop in Shanghai and then transported to the site by ship," Guo tells CNN. The team used hydraulic hammers to drive the cylinders into the seabed, then filled the cylinders and the enclosed area with sand. 1915

While honoring 9/11 victims, survivors and first responders, Trump also shared his thoughts and prayers to those in the path of Hurricane Irma and those still recovering from Hurricane Harvey. 192

When this type of vandalism happens Ofo says it makes the city aware, sends an email to users, and also creates an in-app message that educates riders on the issue.Some San Diegans also have sanitation concerns after witnessing the homeless population using the bikes.There have also been reports of people bringing the bikes inside homes and apartments for easy access later in the day.Bike companies say they are working around the clock to address concerns.Representatives have met with different communities through town halls, including in East Village and Pacific Beach.  582

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