On September 29, NASA will have a launch mission. In addition to delivering supplies to ISS, the launch also has an important mission – to send the 160 million yuan universal waste management system (uwms) to the toilet for astronauts. This universal waste management system (uwms) is simply a toilet, but different from the toilet on earth, it needs to deal with the weightlessness environment in space, handle the problem of defecation, float in the space station is not good, in case of flying outside the space station

the space toilet developed by the US before is already old. It was make complaints about the weight and inconvenience of the astronauts. The UWMS toilet began in 2014, and it has been developed for 6 years. It costs 23 million US dollars, or about 160 million yuan, which is the most expensive toilet in history. < / P > < p > compared with today’s toilets, uwms toilets are 65% less in volume and 40% in weight, reducing the use of valuable space on the space station. < / P > < p > in order to ensure that it does not drift around, if there is no gravity, it has to rely on external forces. The uwms toilet uses a 3D printing titanium alloy fan separator, which can generate strong suction to suck urine and stool into the toilet. < / P > < p > the trouble with space toilet is not only zero gravity environment, but also dry and wet separation – urine should be recycled, stool should be properly preserved, and it has scientific research value. < / P > < p > it doesn’t sound good, but astronauts are used to using the extracted urine as drinking water. Don Pettit, a former International Space Station astronaut, has a subtle metaphor: yesterday’s coffee becomes tomorrow’s coffee. < / P > < p > by the way, this toilet also needs to be used by both men and women, which sounds a little inconceivable. However, it is not so convenient for male astronauts and female astronauts to use the toilet in space. This must be taken into account, so it has designed a urine funnel and washer to facilitate women. < p > < p > after being launched into space, the uwms toilet will go through three or four years of service testing, because it will not only be used in the international space station, but will also be used in the manned lunar landing program of the United States in the future. Didi Qingju bicycle has entered 150 cities