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The Twitterverse lit up Monday morning over model Chrissy Teigen's response to an attack from President Donald Trump, an exchange that was heated 158

Thursday marks Pi Day, otherwise known as 3.14, which marks the ratio of a circle's circumference to its diameter. While the average citizen can easily remember the 3.14 ratio, the exact ratio practically has an infinite amount of numbers. If you want a more precise pi ratio, it is 3.141592653589793238462643383279. How well do you think you could remember just those 30 digits? One man was able to remember the ratio of pi up to 70,000 decimal places. Rajveer Meena accomplished the feat on March 21, 2015 while wearing a blindfold. According to the Guinness Book of World Records, Meena's feat took nearly 10 hours to accomplish. According to Five-Thirty-Eight, there are now more than 22 trillion know digits to pi. According to Five-Thirty-Eight, it took a Dell computer nearly 105 days of computation to come up with the large number of digits. This is compared to just 2,000 known digits of pi in the mid-20th century. So how does one remember so many digits? Savant Daniel Tammet, who is able to remember pi's calculation to more than 20,000 digits, told David Letterman, "What I am doing is visualizing numbers." he said. "When you look at a number, you just see the numbers four and three. When I am looking at numbers, I am seeing different colors and shapes and textures. It is called 'synesthesia.' My brain is working in such a way I am looking and also experiencing color. It is two senses combined. "Having a more exact number of pi helps scientists at NASA conduct more precise experiments and calculations. Having more exact figures helps lend precision to projects such as landing rovers on Mars, sending spacecraft into deep space or tracking the movement of asteroids. To see many of the ways NASA uses pi, click 1746

This summer marks the 50th anniversary of the Apollo 11 Moon landing. While the astronauts were the stars of the show, the flight controllers back in Houston has a supporting role. The Apollo 11 Mission Control Center at NASA was a historical landmark, but it wasn’t being treated as so.Four years ago, NASA chose Sonya Yungeberg and her team at Ayuda Companies to lead the restoration of the Mission Control Center.“We have been working on this project pretty diligently, starting at the research phase for about three years now,” Yungeberg says.The control center hadn’t been used since the 90’s and needed a lot of work. A team of over 100 people began restoring 50 years of history. Month after month, they sifted through photos, film and artifacts.“As you can imagine, when people go and take pictures or video, they are not looking at the stuff on the desk or under the desk,” she says.To recreate the past, they needed to go on the hunt for items that were no longer made, including old ash trays, coffee mugs, headsets and so much more. They spent months on eBay to find old replicas of the items. One huge component of the room they didn’t have to search for were the original consoles used by the flight controllers, like Director Gene Kranz.“Mr. Kranz came in one day and had been doing interviews and he turns and says, ‘Where’s my foot pedal?’ And all of us stood there dumbfounded for a second like, ‘Oh, there is a foot pedal,’ and so we went to find foot pedals,” recalls Jennie Keys with Ayuda Companies.One of their greatest accomplishments were the renderings on the big screen. “These were not available. They were not original,” Yungeberg says. “We had to recreate them and the detail in them from looking at footage, again frame by frame.”Attention to detail was mission critical. From uncovering the numbers on the walls, scraping the gum off all the chairs, matching the carpet that doesn’t exist anymore and even having the same bouquet of roses that were in the room for every launch. For the items they couldn’t track down, the team used a 3D printer to make them. After three years, the project was complete.“The plan was to have it open by the anniversary of the Moon landing, and we barely made it,” Yungeberg says.The seal of approval came from the original flight controllers who were over the moon about seeing the massive fragment of space history restored.“Gene Krantz said he didn’t quite cry, but he got a rush of emotion and he really, really loved it,” Yungeberg says.NASA congratulated the accomplishment by saying, “This is what happens when American’s come together and work hard.” 2635

Thursday marks the third occasion Democratic presidential hopefuls take the stage for a debate, but this instance will be unlike the past two events. Unlike the first two debates, the lineup of debating candidates has been cut in half from 20 to 10. That means that the top 10 candidates based on polling will be on a single stage for one night. Thursday's debate will air live at 8 p.m. ET on ABC and Univision. Viewers can also watch Thursday's debate at ABC.com. Thursday's debate will be held in Houston. The debate is slated to last three hours. The candidatesFormer Vice President Joe BidenNew Jersey Sen. Cory BookerSouth Bend, Indiana Mayor Pete ButtigiegFormer Housing and Urban Development Secretary Julián CastroCalifornia Sen. Kamala HarrisMinnesota Sen. Amy KlobucharFormer Texas Rep. Beto O'RourkeVermont Sen. Bernie SandersMassachusetts Sen. Elizabeth WarrenEntrepreneur Andrew YangThe candidates on stage qualified by having 130,000 unique donors by Aug. 28, and earning 2 percent in four polls that sample voters nationally or in the states of New Hampshire, Iowa, Nevada, or South Carolina. A large field of candidates did not qualify for Thursday's debate. Candidates who appeared in previous debates such as Rep. Tim Ryan, Mayor Bill DeBlasio, Gov. Steve Bullock, author Marianne Williamson, Sen. Michael Bennet, Rep. John Delaney and Rep. Tulsi Gabbard failed to qualify. The aforementioned candidates have until Oct. 1 to qualify for the next debate in October. Activist Tom Steyer, who has not yet appeared in a debate, has recently qualified for the October debate, meaning the next debate could revert back to a two-night format. ModeratorsABC News' David Muir and Linsey Davis will join Univision anchor Jorge Ramos as moderators. Ramos and Muir, at separate events, moderated Democratic Party debates leading up to the 2016 election. Muir also moderated a Republican Party debate in 2016. FormatThe debate will mark the longest one so far in this debate season going a full three hours. Each candidate will be given one minute and 15 seconds for direct responses to questions, and 45 seconds for responses and rebuttals. Candidates will have the opportunity to deliver opening statements, but there will be no closing statements, ABC said. The top 10 on one stageThursday is arguably the night many voters have waited for with the entire top 10 slate of candidates on one stage. For instance, this is the first time that Elizabeth Warren and Joe Biden will share a stage. Will Warren take a shot at Biden now that she has the opportunity? We'll find out on Thursday. AirtimeIn the first two debates, in general, the candidates with higher polling figures got more airtime. Through the first two debates, Biden has led total airtime with almost 39 minutes of talk time. The candidate who appeared in both debates who had the least amount of talk time was Yang with just 11.7 minutes of airtime. Despite little air time in the previous debates, Yang has seen his polling numbers slowly rise. An ABC News/Washington Post poll released Sunday showed Yang has moved into sixth place, passing others such as Booker and O'Rourke.PollingAn ABC/Washington Post poll released Sunday shows Biden leading with 29 percent, followed by Sanders at 19 percent, Warren at 18 percent, Harris at 7 percent, Buttigieg at 4 percent and Yang at 3 percent.According to Real Clear Politics, there haven't been any major shifts in support since early July. Following the first debate, Harris saw a sizable bump in her polling, briefly jumping into the No. 2 slot. She has since fallen to fourth, well behind Biden, Sanders and Warren. Warren and Sanders remain locked into a battle for second. Gun control could be a major issueAlthough gun control has been discussed at the two previous debates, there have been several mass shootings since the Detroit debate in July. Two of those mass shootings took place in Texas -- the same state hosting Thursday's debate. Like how health care was a central issue at the last debate, it would make sense that gun control will be a key discussion point on Thursday.Foreign policyOne issue that has also gained more attention since the last debate is the United States' discussion on leaving Afghanistan. President Donald Trump reportedly called off peace negotiations with Taliban rebels in Afghanistan amid a rise in violence in the country the U.S. has occupied since 2001. Yes, this has been an issue for now the fifth election cycle, but still an important one.Biden's plan versus Warren's planWe have yet to hear Biden and Warren debate their respective healthcare plans. This will certainly be an interesting juxtaposition of policies if debated. On one hand, Biden has advocated for fortifying Obamacare, which was built around the private insurance model. Whereas Warren has suggested in previous debates to abolish private insurance to go with a strictly government-run system. 4940

Three infants have died and five others have become ill from a waterborne bacterial infection at the neonatal intensive care unit of a Pennsylvania hospital, a spokesman said.One baby is still receiving treatment and four others have recovered, said Geisinger Medical Center spokesman Joseph Stender.All of the infected babies were born prematurely, Matthew Van Stone, director of media relations at the hospital, said in an email to CNN.The hospital discovered the infection, caused by the pseudomonas bacteria, in July, according to Van Stone, and the deaths happened in the past two months.The bacteria grows in water and is " 641

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