胆总管结石的症状有哪些重庆重庆输尿管结石手术大概多少钱,碎石收费价目表重庆,最厉害的排石药重庆,重庆肾结石是挂什么科,重庆胆结石手术几月份做最合适,重庆女性肾结石怎么排出来最快方法,重庆肾结石不疼

YPSILANTI, Mich. — One entrepreneur thinks flying cars will one day change the way Americans travel — even though his creation almost cost him his life.Sanjay Dhall, the founder of Detroit Flying Car Company, is still recovering from a December crash at Willow Run Airport in Ypsilanti. Dhall said he was testing out the controls in his flying car prototype when he accidentally took off and found himself 150 feet in the air.“It was a miraculous escape. I did break a lot of bones from head to toe,” Dhall said. “… But amazingly the machine took the majority of the impact and I survived.”The machine was destroyed.“One wrong calculation can mean the difference between life and death,” Dhall said. He says he now is more committed than ever to getting the technology right.“I still want to get back and build another prototype, a demonstrator vehicle that will succeed,” Dhall said.A study released this week by the University of Michigan motivates him. It found that for trips of about 60 miles and longer, a fully-loaded flying car carrying a pilot and three passengers had 52% lower greenhouse gas emissions and time savings compared to ground-based gasoline powered cars with an average vehicle occupancy of 1.54."Consumers could be incentivized to share trips, given the significant time savings from flying versus driving," The study's author, Akshat Kasliwal, said.The study found flying cars would travel the 60 miles much faster, resulting in a time savings of about 80 percent compared to cars driving on the road.When compared to electric cars, fully-loaded flying cars still had 6% lower greenhouse gas emissions on trips longer than 60 miles.“When flight happens, constraints are gone. And when constraints go away things have a way of going cleaner ways,” Dhall said.The study did find that on short trips, it is more efficient to stay on the ground.Dhall points out that his prototype features wings that retract into the vehicle, allowing travel by road or sky. In theory, he says it could be an overall greener way of traveling.He says he named his company in honor of the Detroit inventors who changed the way people around the world travel.He believes flying cars will do the same in the future. 2229

 President Donald Trump's legal team is preparing answers to written questions provided by special counsel Robert Mueller, according to sources familiar with the matter.The move represents a major development after months of negotiations and signals that the Mueller investigation could be entering a final phase with regard to the President.The questions are focused on matters related to the investigation of possible collusion between Trump associates and Russians seeking to meddle in the 2016 election, the sources said. Trump's lawyers are preparing written responses, in part relying on documents previously provided to the special counsel, the sources said."We are in continuing discussions with the special counsel and we do not comment on those discussions," said Trump attorney Jay Sekulow.There may be more rounds of questions after the first answers are returned. The special counsel had insisted that there be a chance for follow-up questions as well. But after a prolonged back-and-forth over months, the two sides agreed to start with a first round of questions.Additionally, the two sides have still not come to an agreement on whether the President will be interviewed in person by investigators who are also probing whether Trump obstructed justice by firing FBI Director James Comey.Asked on Thursday about answering Mueller's questions, Trump again signaled his willingness to sit down for an interview with Mueller or provide written responses -- the option much preferred by his attorneys."It seems ridiculous that I'd have to do it when everybody says there's no collusion, but I'll do what is necessary to get it over with," Trump said in a phone interview on Fox News. Despite Trump's insistence to the contrary, the possibility of collusion remains an open question in the ongoing investigation led by Mueller, who has not tipped his hand one way or the other.Negotiations for Trump's testimony lasted for the better part of a year. The two sides nearly reached a deal in January for Trump to be questioned at the presidential retreat in rural Maryland, Camp David, only for talks to break down at the last minute. What followed was a series of letters and meetings -- some hostile -- in which Trump's lawyers raised objections and sought to limit any potential testimony.For months, Mueller told Trump's lawyers that he needed to hear from the President to determine his intent on key events in the obstruction inquiry. During one tense session in March, Mueller raised the possibility of getting a subpoena to compel the President's testimony.Trump's lead attorney John Dowd resigned later that month. According to a recent book published by journalist Bob Woodward, Dowd quit because he believed Trump would never heed his advice to avoid an interview at all costs. Trump once publicly said he was "100%" willing to go under oath to answer questions about his decision to fire Comey, who led the original Russia investigation before Mueller was appointed.The President eventually hired Rudy Giuliani to join his legal team, and the former New York mayor quickly took to the airwaves to defend Trump and attack Mueller. As Giuliani made the rounds on TV newscasts -- blasting the investigation as illegitimate -- Trump's other lawyers, Jane and Marty Raskin, carefully worked behind the scenes with Mueller's team to narrow the topics that Trump could be asked about. 3444

 Grammy nominated Swedish DJ Avicii died Friday, his publicist confirmed to CNN.He was 28."It is with profound sorrow that we announce the loss of Tim Bergling, also known as Avicii," a statement to CNN read. "He was found dead in Muscat, Oman this Friday afternoon local time, April 20th. The family is devastated and we ask everyone to please respect their need for privacy in this difficult time. No further statements will be given."Avicii was one of the most successful touring DJs in the industry, working with artists including Madonna. He had a crossover pop hit in 2013 with "Wake Me Up."But he also saw the downside of fame in the electronic dance music genre known as EDM."It's very easy to become too attached to partying," he told Rolling Stone last year. "You become lonely and get anxieties. It becomes toxic."He retired from performing in 2016 after a string of health issues, including acute pancreatitis.Avicii told Time in 2013 that the illness was caused by excessive drinking."Yeah I was drinking way too much, partying in general way too much," he said. "Then I got a pancreatitis attack [at 21], which is very rare. So that forced me to do a 180 and stop drinking."The DJ explained in a 2017 posting on his site that he had no intention of giving up music completely, writing "We all reach a point in our lives and careers where we understand what matters the most to us.""For me it's creating music," he wrote. "That is what I live for, what I feel I was born to do."Avicii also wrote that he was heading back into the studio to make more art."The next stage will be all about my love of making music to you guys. It is the beginning of something new," his posting said. "Hope you′ll enjoy it as much as I do."Fellow musicians took to social media on Friday to mourn his death."Devastating news about Avicii, a beautiful soul, passionate and extremely talented with so much more to do," fellow superstar DJ Calvin Harris tweeted. "My heart goes out to his family. God bless you Tim." 2045

You can now text Houston Texans star player JJ Watt!The NFL player took to Twitter Tuesday night to share his phone number with his followers. 154

(CNN) -- A young Malian migrant who rescued a child dangling from a balcony will be made a French citizen and has been offered a job by the Paris fire brigade, the office of the French presidency said.Video of the rescue showed 22-year-old Mamoudou Gassama climbing up four floors of the apartment building in just seconds to rescue the child, to cheers from onlookers.By the time Parisian emergency services arrived at the building, he had already pulled the child to safety.President Emmanuel Macron invited Gassama to the élysée Palace on Monday, where he was given a certificate and a gold medal for performing an act of courage and dedication.Gassama told Macron: "I didn't think about it, I climbed up and God helped me." 735