4. In 2010, the Martin Aircraft Company introduced a jetpack it called "the world's first piratical jetpack." The jetpack even won a spot in Time's Top 50 Inventions of 2010. While its development has been on since 1981, the world's first jetpack is known to have flown in 1958. It was designed by Wendell Moore, a researcher at Bells Aerosystems. Early prototypes of Wendell's jetpack could reach a height of 5 meters (16 ft) and remain airborne for three minutes. This attracted the attention of the US Army, which funded the project with $150,000. Several test flights were later done for the US Army and even for JFK himself. The army later stopped paying for more research into the project because the flight time and distance were not convincing enough. NASA also wanted to use the jetpack for their Apollo 11 mission to serve as backups in case their lunar module malfunctioned. They later changed their minds, going for the lunar rover instead. After this setback, Bell discontinued further research on the jetpack.
5. After an investigation, Rongchang police arrested Zhou on April 29 for endangering public security, according to the Chongqing Morning Post.
6. Beijing ranked No 3 on the list of top 10 most congested cites in China, following Jinan and Harbin, according to a report by China Academy of Transportation Sciences.
西西软件园 Tencent said in an email it has no current plans to find a profitable model for WeChat. An Internet conglomerate, Tencent is China's largest listed Internet company with a market capitalization of roughly $65 billion and has strong revenue streams from gaming, virtual products and advertising on other platforms.