徐州四维彩超何时做好一点(徐州四维彩超做前注意事项) (今日更新中)

WATCH THE LAUNCH:(KGTV and CNN) - Friday morning's launch of a SpaceX rocket from the Central California coast will be a notable one for Elon Musk's out-of-orbit efforts.A Falcon 9 rocket is scheduled to blast off from Vandenberg Air Force Base at 7:13 a.m. PT. The rocket will deliver a group of satellites for communications firm Iridium (IRDM).Shortly after launch, SpaceX is probably going to make another experimental attempt to guide the rocket's nose cone, also called a payload fairing, onto a passenger ship outfitted with a giant net.PHOTOS: SpaceX?rocket launch visible above San DiegoThe fairing rests on the very top part of the rocket, and it acts as a shield for satellites during launch. Once the rocket is in space, the fairing splits into two and falls away. Typically, it's left to plummet back to Earth where the ocean becomes its graveyard.But SpaceX wants to change that, mostly because the fairing on its Falcon 9 costs million.As Musk once put it, if "you had million in cash on a palette flying through the air, and it's going to smash into the ocean, would you try to recover it? Yes. Yes, you would."The company has quietly attempted to recapture the 43-foot-long fairing halves since at least March of 2017.At least twice, SpaceX has guided fairing halves to soft landings in the ocean, according to Musk's social media pages.But there's a problem."Once it gets into the water, it's quite damaging to the electronics and components inside the fairing," said Glenn Lightsey, a professor of aerospace engineering at Georgia Tech. "Most likely if it gets into the water, it's not usable."Enter, Mr. Steven.For Friday's launch a ship, named Mr. Steven, will head out to sea and attempt to catch half of the fairing with a giant net. 1810

Weeks of nationwide protests against police brutality have placed a microscope on past instances of police use of force across the country — especially in the case of Elijah McClain.McClain, 23, died shortly after the Aurora (Colorado) Police Department arrested him on Aug. 24, 2019. An autopsy report says he suffered a heart attack on the way to the hospital after an officer placed him a chokehold, which has since been banned by the department.As of June 25, more than 2 million people have signed a Change.org petition calling for justice for McClain.What happenedAccording to Scripps station KMGH in Denver, McClain was walking home on Aug. 24 after purchasing iced tea at a convenience store.He was wearing a ski mask at the time. According to McClain's family, the 23-year-old was anemic and got cold easily.As McClain walked home, a bystander called 911 to report "a suspicious man wearing a ski mask and waving his arms." Police tracked McClain down. Shortly after, police say he began "resisting." Body camera footage shows officers grab McClain almost immediately after attempting to stop him.Police later told The Denver Post that "there were no allegations that McClain had done anything criminal."As police struggled to detain McClain, an officer placed him in a "carotid hold" — a maneuver designed to limit blood flow to the brain. When McClain became unresponsive, paramedics administered a shot of ketamine "due to the level of physical force applied while restraining the subject and his agitated mental state." Police insist that paramedics were the ones who chose to administer ketamine. Paramedics say the procedure is common in the area.McClain later suffered a heart attack and died six days later.AutopsyOn Nov. 10, a coroner released an autopsy report that listed McClain's death as "undetermined" — meaning they could not determine if McCain's death was an accident, a homicide or of natural causes.The report references multiple abrasions on McClains face, back and legs, and also references some hemorrhaging around his neck.Though the report notes that the levels of ketamine in McClain's body were at a "therapeutic level," examiners could not rule out that he had an unexpected reaction to the drug.The coroner ultimately determined that it was most likely McClain's "psychical exertion" that led to his death but stopped short of saying he died of natural causes.InvestigationShortly after the arrest, the officers involved in McClain's arrest were placed on leave. They've since been reinstated.On Nov. 23, the Aurora Police Department announced that the officers would not face charges."There is no evidence that any of the officers sought to cause injury or death to Mr. McClain," a letter from the 17th Judicial District Attorney's Office read. The letter went on to say that the officers' use of force was appropriate given the circumstances.At a press conference, Aurora Police released police body camera footage from the arrest, which shows officers grab McClain almost immediately after attempting to stop him. Video also shows McClain vomiting and telling him that he couldn't breathe.On June 5, the Aurora Police Department banned the use of the chokehold officers used during McClain's arrest.McClain's family has called for an independent investigation into the arrest for months. But it wasn't until June — about 10 months after McClain's death — that steps were taken to put an investigator in place.But less than 24 hours after Aurora City Manager Jim Twombly announced that Connecticut-based attorney Eric Daigle would lead the third-party investigation into McClain's death, the city severed its contract with Daigle. City Council members had raised concerns about Daigle's neutrality because, according to his website, Daigle's work includes "defending municipalities, police chiefs, and individual officers from law enforcement liability claims."City officials are still working through steps to conduct a third-party investigation into McClain's death. 4016

WASHINGTON, D.C. – The U.S. Postal Service has launched a new website to help Americans vote by mail in the November general election.The USPS announced the creation of usps.com/votinginfo Friday, saying the site is meant to provide the electorate with clear and concise information about voting by mail.The website is also meant to help election officials as states choose to expand mail-in voting options for the upcoming elections, so that voters don’t have to risk contracting the coronavirus at the polls.For domestic voters, the website provides direct links to federal election resources as well as links to state-specific resources. For overseas and military voters, the new site provides additional information, including links to resources supporting their election participation.The site also highlights what the USPS views as the most critical information for voters who opt to vote through the U.S. mail: that, in requesting or casting a mail-in ballot, they not only must comply with their local jurisdictions’ requirements, but also should start the process early.To allow sufficient time for voters to receive, complete and return ballots via the mail, the USPS strongly recommends that voters request ballots at the earliest point allowable, but no later than 15 days prior to the election date.The Postal Service also recommends that voters mail their ballots at least one week prior to their states’ due dates to allow for timely receipt by election officials.Voters should contact their local election officials for further information about deadlines and other requirements.The USPS says it remains fully committed to fulfilling its role in the electoral process and can handle the anticipated increase in election mail.“Election officials and voters are being asked to be mindful of the Postal Service’s established delivery standards and consider how the mail actually works, so that voters have adequate time to request, receive, complete and send their mail-in ballots,” wrote the USPS in a press release. “The Postal Service will continue to do everything in its power to efficiently handle and deliver Election Mail, including ballots, in a manner consistent with the proven processes and procedures that have been relied upon for years.” 2273

WASHINGTON (AP) — With a bit of rejiggering, President Donald Trump and first lady Melania Trump played host Sunday to hundreds of super-heroes, unicorns, skeletons and even a miniature version of themselves as part of a Halloween celebration at the White House.In years past, the president and first lady personally handed candy to the costume-clad kids, but this year, the treats were provided as participants walked along a path on the South Lawn.The kids still got to briefly meet the president and first lady though, who waved and offered words of encouragement from a safe distance about how much they liked the costumes.Trump was particularly pleased with a young boy with a distinctly Trump head of hair and a partner who did her best Mrs. Trump impersonation. The president motioned for them to turn and pose for the cameras, and they happily agreed.Another tot, a true princess it appeared, was so smitten with the cameras that she kept waving at them as she walked along, never noticing the VIPs behind her. 1026

WASHINGTON (AP) — Under pressure from moderates in both parties, House Speaker Nancy Pelosi and Senate Majority Leader Mitch McConnell have initiated late-game negotiations in hopes of combining a coronavirus relief package.In all likelihood, the package will contain less than trillion with a separate .4 trillion government-wide omnibus spending bill. After lengthy delays, optimism is finally building in Washington for a COVID-19 aid bill that would offer relief for businesses, the unemployed, schools and health care providers, among others struggling as caseloads are spiking. Success is not certain and considerable differences remain over details, such aid to states and local governments, liability protections for businesses and universities reopening during the pandemic, and whether to issue a second round of ,200 direct payments to most Americans.But renewing soon-to-expire jobless benefits, providing a second round of “paycheck protection” subsidies, and funding to distribute vaccines are sure bets to be included in any deal. 1060

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