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Why Do Presidents Get Libraries?

Opening a presidential library is now a rite of passage for those who held our nation’s highest office. On Wednesday May 3, the Obama Administration released the first concept designs depicting the Obama Presidential Center, which is planned for Chicago’s South Side.

As Condé Nast Traveler reports, the library will hold more than just books. The design, envisioned by husband-and-wife architects Tod Williams and Billie Tsien, includes classrooms, an auditorium, a restaurant, a museum, and a public garden. Like the presidential libraries that came before it, it will also be used to archive records from Barack Obama’s presidency.

Obama will become one of 14 former presidents with libraries managed by the National Archives and Records Administration (NARA). In 1955, Congress passed the Presidential Libraries Act that laid the groundwork for former presidents to donate any “papers, documents, or other historical materials” of theirs to be held in a “presidential archival repository.”

The act gained added significance after Nixon’s Watergate scandal highlighted the importance of transparency between the president and the people. That incident led to the Presidential Records Act of 1978, which states that most presidential documents must be made public within five years of the president leaving office. Today those documents are largely held in presidential libraries, where anyone can access them.

Before Herbert Hoover established the first official presidential library in 1962, there were others with the same idea. The presidential library technically originated with Rutherford B. Hayes, when his son opened one to hold his records in 1912. Abraham Lincoln and Woodrow Wilson also have presidential libraries that aren’t recognized by the 1955 law.

Former president Barack Obama’s library will be serve the public in more ways than one: Chicago Mayor Rahm Emanuel believes the project will stimulate the economies of the neighborhoods surrounding its location in Jackson Park. The campus will also be a place for community members to gather and learn. The Obama Center is scheduled to open in 2021.

[h/t Condé Nast Traveler]

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Big Questions
Why Does Turkey Make You Tired?
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Why do people have such a hard time staying awake after Thanksgiving dinner? Most people blame tryptophan, but that's not really the main culprit. And what is tryptophan, anyway?

Tryptophan is an amino acid that the body uses in the processes of making vitamin B3 and serotonin, a neurotransmitter that helps regulate sleep. It can't be produced by our bodies, so we need to get it through our diet. From which foods, exactly? Turkey, of course, but also other meats, chocolate, bananas, mangoes, dairy products, eggs, chickpeas, peanuts, and a slew of other foods. Some of these foods, like cheddar cheese, have more tryptophan per gram than turkey. Tryptophan doesn't have much of an impact unless it's taken on an empty stomach and in an amount larger than what we're getting from our drumstick. So why does turkey get the rap as a one-way ticket to a nap?

The urge to snooze is more the fault of the average Thanksgiving meal and all the food and booze that go with it. Here are a few things that play into the nap factor:

Fats: That turkey skin is delicious, but fats take a lot of energy to digest, so the body redirects blood to the digestive system. Reduced blood flow in the rest of the body means reduced energy.

Alcohol: What Homer Simpson called the cause of—and solution to—all of life's problems is also a central nervous system depressant.

Overeating: Same deal as fats. It takes a lot of energy to digest a big feast (the average Thanksgiving meal contains 3000 calories and 229 grams of fat), so blood is sent to the digestive process system, leaving the brain a little tired.

Have you got a Big Question you'd like us to answer? If so, let us know by emailing us at bigquestions@mentalfloss.com.

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Big Questions
How Are Balloons Chosen for the Macy's Thanksgiving Day Parade?
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The balloons for this year's Macy’s Thanksgiving Day Parade range from the classics like Charlie Brown to more modern characters who have debuted in the past few years, including The Elf On The Shelf. New to the parade this year are Olaf from Disney's Frozen and Chase from Paw Patrol. But how does the retail giant choose which characters will appear in the lineup?

Balloon characters are chosen in different ways. For example, in 2011, Macy’s requested B. Boy after parade organizers saw the Tim Burton retrospective at the Museum of Modern Art. (The company had been adding a series of art balloons to the parade lineup since 2005, which it called the Blue Sky Gallery.) When it comes to commercial balloons, though, it appears to be all about the Benjamins.

First-time balloons cost at least $190,000—this covers admission into the parade and the cost of balloon construction. After the initial year, companies can expect to pay Macy’s about $90,000 to get a character into the parade lineup. If you consider that the balloons are out for only an hour or so, that’s about $1500 a minute.

Have you got a Big Question you'd like us to answer? If so, let us know by emailing us at bigquestions@mentalfloss.com.

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