甘肃口腔外科综合模型(沈阳标准牙模型) (今日更新中)

Humanity's first visit to a star began this weekend. NASA's Parker Solar Probe will explore the sun's atmosphere in a mission that launched early Sunday. This is the agency's first mission to the sun and its outermost atmosphere, the corona.After being delayed on Saturday, the probe successfully launched at 3:31 a.m. ET Sunday from Cape Canaveral, Florida, on a United Launch Alliance Delta IV Heavy rocket, one of the world's most powerful rockets.Although the probe itself is about the size of a car, a powerful rocket is needed to escape Earth's orbit, change direction and reach the sun.The launch window was chosen because the probe will rely on Venus to help it achieve an orbit around the sun.Six weeks after launch, the probe will encounter Venus' gravity for the first time. It will be used to help slow the probe, like pulling on a handbrake, and orient the probe so it's on a path to the sun. 913

House Speaker Paul Ryan announced Tuesday that there will be a new mandatory anti-harassment and discrimination training for all House members and staff.Paul said in a statement that the goal is "not only to raise awareness, but also make abundantly clear that harassment in any form has no place in this institution."The announcement came at the heels of a morning-long House hearing on sexual harassment where some members of Congress brought up concerns about sexual harassment in the legislative branch and reviewed the institutions in place for reporting and addressing such behavior. 607

I believe we should abolish the Electoral College and select our president by the winner of the popular vote, same as every other office.But while it still exists, I was proud to cast my vote in New York for Joe Biden and Kamala Harris. pic.twitter.com/th9qebu9ka— Hillary Clinton (@HillaryClinton) December 14, 2020 330

Imagine Kevin James as Frank Underwood on "House of Cards."There is an online petition suggesting just that -- believe it or not -- and as of Tuesday, nearly 30,000 people have signed on to endorse the idea."Losing a great show is hard, no matter the circumstances," the petition reads. "However with hardship comes the opportunity for a great show to become one of the greatest television shows of all time. I think Kevin James can elevate 'House of Cards' to a globally adored franchise like 'Game of Thrones' and make the entire world focus on one of the most important Netflix original series there is."It's doubtful one Kevin will replace the other, but let's not pretend that television hasn't pulled big swaps before.Here are a few examples:Donna's death on "Kevin Can Wait"James is currently starring in the CBS sitcom "Kevin Can Wait," which recently killed off his character's wife, played by Erinn Hayes.Now, killing off a character is not out of the ordinary, but the show managed to make this particular plot twist especially awkward.Some "Kevin Can Wait" viewers complained that series treated the character's death too lightly, making a joke about her gym sending a postcard saying she was missed.James's character tells his daughter not to toss the card because "on the bottom, there's a coupon for a Kung-Fu lesson. I want to go there."James's former "King of Queens" costar, Leah Remini, was added to the cast, effectively making the show feel like "King of Queens 2.0."Original vs. new Becky on "Roseanne"Fans still like to argue over who was the better Becky on the hit 1990s sitcom "Roseanne."Actress Lecy Goranson played the eldest Conner child for the first five seasons, before leaving to go to college.Sarah Chalke was then recast in the role for Season 6, which some viewers didn't love.Goranson tried to work with the show -- reprising her role in Season 8 -- but ultimately Chalke became Becky full time.The whole thing turned into a running gag on "Rosanne," which would sometimes include jokes about the missing Goranson.The forthcoming "Roseanne" revival is set to have Goranson back as Becky and Chalke in another role.What happened to Judy on "Family Matters?"Judy Winslow went upstairs to her room one day and was never seen or heard from again.At least that's how fans of ABC's "Family Matters" felt like it all went down.The sitcom, which ran from 1989 to 1997, made the character Steve Urkle famous. But it was the disappearance of young Judy after four seasons that many viewers still talk about.Jaimee Foxworth, the actress who portrayed Judy, is now 37."The producers felt that they could do it [disappear her character] and no one would notice," Foxworth recently told The Root "They'd done it with previous shows they had," she said. "They figured no one would really care. My fans took notice of it."A tale of two Morgan Matthews on "Boy Meets World""Boy Meets World" thought they could pull one over on us when they swapped out actress Lily Nicksay, who played the scene-stealing sister Morgan, for actress Lindsay Ridgeway. Well, the second Morgan became forever known as "the other Morgan."Disney gave the 1990s show a bit of a reboot in 2014 with "Girl Meets World," which at the end of Season 3 brought both actresses back for the finale.It got ugly with Aunt Viv on "Fresh Prince of Bel Air"The original Aunt Viv, Janet Hubert, was beloved by fans for the first three seasons of the series which debuted in 1990.But the actress departed the NBC sitcom in 1993, and cast Daphne Maxwell Reid to play rapper Will Smith's aunt.In 2013, Hubert told "The Insider" that Smith fired her."He said 'We're just going to replace her and act like nothing happened," Hubert said at the time. "Well, honey, that is not what happened is it?"For his part, Smith reportedly said in a 1993 radio interview that he expected Hubert's anger."I can say straight up that Janet Hubert wanted the show to be 'The Aunt Viv of Bel Air Show,' because I know she is going to dog me in the press," he said. "She has basically gone from a quarter of a million dollars a year to nothing. She's mad now, but she's been mad all along."The-CNN-Wire 4169

IMPERIAL BEACH, Calif. (KGTV) - Imperial Beach residents are being told by city officials to clean up - or pay up.Some 20 homeowners received a code enforcement letter last month indicating they needed to remove debris from their backyards.The letter read in part: 272

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