A Master List of 1,300 Free Courses From Top Universities: 45,000 Hours of Audio/Video Lectures

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Image by Carlos Delgado, via Wikimedia Commons

For the past 11 years, we’ve been busy rummaging around the internet and adding courses to an ever-growing list of Free Online Courses, which now features 1,300 courses from top universities. Let’s give you the quick overview: The list lets you download audio & video lectures from schools like Stanford, Yale, MIT, Oxford and Harvard. Generally, the courses can be accessed via YouTube, iTunes or university web sites, and you can listen to the lectures anytime, anywhere, on your computer or smart phone. We haven’t done a precise calculation, but there’s about 45,000 hours of free audio & video lectures here. Enough to keep you busy for a very long time.

Right now you’ll find 173 free philosophy courses, 92 free history courses, 128 free computer science courses, 81 free physics courses and 55 Free Literature Courses in the collection, and that’s just beginning to scratch the surface. You can peruse sections covering Astronomy, Biology, BusinessChemistry, Economics, Engineering, Math, Political Science, Psychology and Religion.

Here are some highlights from the complete list of Free Online Courses. We’ve added a few unconventional/vintage courses in the mix just to keep things interesting.

The complete list of courses can be accessed here: 1,300 Free Online Courses from Top Universities.

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A Master List of 1,300 Free Courses From Top Universities: 45,000 Hours of Audio/Video Lectures is a post from: Open Culture. Follow us on Facebook, Twitter, and Google Plus, or get our Daily Email. And don’t miss our big collections of Free Online Courses, Free Online Movies, Free eBooksFree Audio Books, Free Foreign Language Lessons, and MOOCs.

The Star Trek Story

The following article is from the bookUncle John’s Bathroom Reader Tunes Into TV.

TV’s Star Trek franchise was a four-decade-long roller-coaster ride, beginning with two different shows helmed by two very different men- Gene Roddenberry and Rick Berman. Here’s their behind-the-scenes story.

Macho Man

In his youth, Gene Roddenberry was a lot like Captain Kirk- always looking for adventure. As a teenager, he wanted to be a cop and even volunteered for the FBI. In World War II, he became a decorated bomber pilot who completed 89 missions in the Pacific. After the war, Captain Roddenberry was piloting a Pan Am passenger jet over the Syrian desert when the plane lost an engine and crashed. He fought off looting nomads to keep his passengers safe until help arrived.

One day in the mid-1950s, Roddenberry, now a motorcycle cop, walked into a Hollywood restaurant and interrupted a group of TV producers at a lunch meeting. He dropped one of his scripts on the table and said, “You’ll want to read this.” It was an unconventional, swaggering way to get his foot in the door… and it worked.

Wagon Trek

By 1964, Roddenberry was a successful TV writer, having written dozens of scripts for successful TV Westerns (Have Gun – Will Travel) and police dramas (Highway Patrol). But his goal was to get a show he created on the air, and he already had the first piece of the puzzle- a great idea. From his official pitch:

Star Trek is a new kind of television science fiction series. The format will be “Wagon Train to the Stars”- built around characters who travel to other worlds and meet the jeopardy and adventure which become our stories.

Studio after studio said no. “Too risky,” one executive said, “too smart. And way too expensive to produce every week.” In the 1960s, TV sci-fi was more fantasy than science-fiction; there was little attempt at realism- with either the science or the storylines. Combining a space adventure with serious drama was unheard of. But Roddenberry knew there was an audience for it.

Gene Loves Lucy

Having been rejected by the major TV studios, Roddenberry turned to a smaller one, Desilu. There he succeeded. Although Herbert Solow, Desilu’s vice president, wasn’t completely sold on the Star Trek idea, he thought Roddenberry had great promise as a writer/producer and convinced his boss, Oscar Katz, to sign him to a three-year deal.

The studio needed a hit- its only show in production at that time was The Lucy Show, Lucille Ball herself (Desilu’s president) convinced Katz to allow Roddenberry to pitch Star Trek to the networks, saying, “There aren’t smart shows on TV.” So Roddenberry went to CBS, home of The Lucy Show. After an impassioned, two-hour presentation, network president James Aubrey Jr. thanked Roddenberry for his time but turned down Star Trek because the network was already developing a similar show: Lost in Space. A meeting with ABC also ended in rejection. The only stop left: NBC.

This time, Roddenberry got the go-ahead. Mort Werner, NBC’s vice president of programming, shelled out $500,000 to produce a pilot. Called “The Cage,” it starred Jeffrey Hunter as Captain Christopher Pike and Majel Barrett as his female second-in-command. (There was also an alien character with pointy ears played by Leonard Nimoy.) Werner was impressed by the storytelling, the drama, the acting, and the attention to detail, but still said no to a series, using the same “too smart” and “too expensive” logic that Roddenberry had heard so many times.

But there was a glimmer of hope. Werner allowed Roddenberry to film a second pilot- with a few changes: 1) find a younger, better-looking actor to play the captain, 2) demote the woman and 3) get rid of the “pointy-eared guy.”

A Reflection of the Times

Roddenberry was dismayed about the changes but elated about having a second chance, so he compromised. William Shatner came in as Captain Kirk (replacing Pike), and Barrett was recast as Nurse Chapel. But Roddenberry refused to relinquish the “Vulcan” character. And he made one other change without informing NBC: He added a female African-American officer to the bridge.

Roddenberry wanted Star Trek to reflect modern, progressive culture. Uhura, played by Nichelle Nichols, became TV’s first black female character in a position of authority during the civil-rights movement. Racism, militarism, pacifism- few topics were taboo for the original Star Trek. And it was an intelligent show, thanks to some of the day’s best sci-fi writers, including Harlan Ellison, Theodore Sturgeon, and David Gerrold (who would become best known for writing the episode “The Trouble with Tribbles”). Whereas other space shows (like Lost in Space) featured mindless monsters, Star Trek aired an episode about a “Horta” -a rock-like thing that turned out to be a mother protecting her young.

Stardate 1513.1

Star Trek premiered on September 8, 1966, and a whopping 40 percent of American homes tuned in. The size of the audience may have been because NBC launched their fall season a week before the other networks; CBS and ABC were airing reruns. When competitors put new shows against Star Trek, ratings dropped. By the end of the season, it ranked a disappointing #52. Desilu’s Katz wanted to cancel it, but again Lucille Ball exerted her power to keep it in production for another year. At the end of the second season, NBC was all set to cancel the show, no matter what Ball said -it was losing badly to CBS’s Gomer Pyle USMC– but Trek’s small, rabid fan base mounted a massive letter-writing campaign to keep it on the air. The show was saved again.

Ratings, however, did not improve. NBC never knew how to market Star Trek, or to whom- it was too grown-up for the Monkees audience and too far-out for the Gunsmoke crowd. Plus, Roddenberry constantly battled NBC and soon Paramount, which bought out Desilu, over everything from budgets to hemlines. Even the actors were fighting with each other (Shatner frequently stole lines from his castmates) and with Roddenberry (over scheduling and appearance fees).

By the third season, the budget was severely cut and the show’s quality suffered. NBC was ready to let it go. The network put Star Trek in the slot where shows go to die: Friday night at 10 p.m. The final episode aired on June 3, 1969, a month and a half before the moon landing.

Tooning In

Then something strange happened. Reruns of Star Trek in the mid-’70s attracted new fans and the show suddenly became a phenomenon. Fans assembled at Star Trek conventions, and spin-off novels were huge sellers in the sci-fi market. That proved to the brass at NBC that there was an audience for the show. Still, it was too risky to dive into another expensive production, and it would be too difficult to reassemble the cast to revive the series. So in 1973 NBC decided to make Star Trek into a Saturday morning cartoon.

Although it was cheaper to produce, Star Trek: The Animated Series was by no means a cheap knockoff. Roddenberry was still in charge; most of the original cast (including Shatner and Nimoy) voiced their characters; and veteran writers D.C. Fontana and David Gerrold wrote scripts. As many adults as kids turned in, but there weren’t enough of either to keep it on the air. Though the show was well received, NBC canceled it after two seasons.

Phase II, Engage

With reruns of Star Trek‘s original 79 episodes still performing strongly in 1977, Paramount asked Roddenberry to develop a second live-action series. Called Star Trek: Phase II, it was to be a revival of the original series, with Shatner, Nichols, and other case members (but not Nimoy- he was committed to starring in Equus on Broadway). Sets were built, scripts were written, and contracts were signed. Paramount even envisioned Phase II as the linchpin of the Paramount Television Service, a new broadcast network it was developing.

And then Star Wars was released.

Not only did Star Wars become one of the highest-grossing movies of all time, it renewed interest in big-screen science fiction, which hadn’t been popular in a decade. Paramount saw bigger dollar signs on the big screen, so they retooled Phase II into 1979’s Star Trek: The Motion Picture. That decision launched a big-screen Trek franchise that spawned four movies and earned a half a billion dollars at the box office over the next nine years. The movies were such a success that in 1986 Paramount once again called on Gene Roddenberry to create a live-action television series.

Roddenberry decided he needed someone who knew not only how to get a show on the air but how to keep it on the air. His preferred choice for a producer was Harve Bennett, the man who wrote Star Trek II: The Wrath of Kahn, but Bennett was too busy working on the Trek film series.

That’s when Roddenberry was told that he should talk to a young man rising up through the ranks at Paramount: Rick Berman.

Generation Next

If Gene Roddenberry personifies Captain Kirk, then Rick Berman takes after Captain Picard. Whereas Roddenberry made action shows, Berman made PBS kids’ shows such as Big Blue Marble, as well as the very intellectual documentary Space. And Berman was coming into his own as a producer, having worked on ratings giants Cheers, MacGyver, and Webster. One thing Berman wasn’t: a Star Trek fan. Roddenberry didn’t mind- the new show was going to take place 80 years after the original series, and he thought that it should look and feel different from the 1960s version.

But from the get-go, Berman’s relationship with Roddenberry was tumultuous. Their first major clash concerned putting a “bald Englishman” on the bridge of the Enterprise. Roddenberry agreed that Captain Kirk’s “cowboy diplomacy” should be toned down for the new show, but he didn’t like Berman’s choice for the role of Captain Picard: classically trained Patrick Stewart. Nearly everyone else did, however, and Berman finally talked Roddenberry into it.

In September 1987, the two-hour premiere of Star Trek: The Next Generation attracted a massive 27 million viewers. Paramount’s gamble had paid off. For the first time in nearly two decades, a new live-action Star Trek series was on TV.

But it wasn’t very good (at first).

Number One, This is Number Two

As new producers, writers, and actors found their way, the first season of Star Trek: The Next Generation was uneven. Despite TNG’s flaws, hardcore Trek fans kept tuning in, hoping it would get better. Few people, including the stars, expected the show to last. “We were all very nervous,” said Levar Burton, who played Lt. Commander Geordi La Forge. “We felt that we were stepping into such big shoes that we took it, and perhaps ourselves, too seriously.”

The entire concept of Star Trek: TNG was at odds with itself: It needed to have its own identity, but it also needed to piggyback on the legacy of the original series. Except for a brief cameo by Deforest Kelley as an elderly Dr. McCoy in the pilot, Roddenberry didn’t allow any of the original actors to reprise their roles… but he did recycle plots and ideas from the old series.

King Lear in Space

But Roddenberry was also nixing the edgier scripts. Head writer David Gerrold wrote an allegorical episode called “Blood and Fire,” about the AIDS epidemic. Roddenberry rejected it. Gerrold and fellow writer D.C. Fontana quit after the first season because of office politics, and so did more than 30 other staffers, still a television record.

Roddenberry was increasingly suffering from heart trouble by the time the second season began, although he still held sway over the writers and actors. That gave Rick Berman an opportunity to take over. His first change was allowing actor Patrick Stewart to have more input on his character. Stewart, who’d trained with the Royal Shakespeare Company, had taken the role not because he was particularly interested in science fiction, but because he wanted to portray the inner struggle of a man whose duty was to protect hundreds of lives. As he put it, “I wanted to be King Lear in space.”

Then, against Roddenberry’s wishes, Berman approved the script for “The Measure of a Man,” in which Starfleet orders the android Data to be disassembled and studied, and Picard must defend Data’s “humanity.” The episode was the first time Stewart got to sink his teeth into the role. “I was very happy to finally have a chance to take on some serious issues,” he said. Brent Spiner (Data) was happy, too- he’d had an equally difficult time with his one-note role and credits Berman with allowing him to “find Data.” Things started to get easier for the cast and crew.

The Finest Fleet in the Galaxy

In 1991, two major events occurred in the Star Trek world: Gene Roddenberry died at age 70, and The Next Generation became one of the most popular shows on television. The show’s stars reached celebrity status, too- especially Stewart, whom People magazine named the “sexiest man on TV.”

Under Berman, TNG won 18 Emmy Awards. And in 1994, it became the only syndicated show ever to be nominated for Outstanding Drama Series (it lost to Picket Fences).

Yawn

As the series aged, however, the quality of the show occasionally suffered. Some critics and viewers felt that Star Trek: TNG had become a victim of its own formula: give a crew member a personal crisis to deal with, introduce an alien with a forehead prosthetic to reflect on a thinly veiled human folly (greed, racism, etc.), and then put the ship in danger. TNG’s final two seasons revolved around stories like Commander Worf’s young son not wanting to be a warrior, and Dr. Crusher falling for a man who turns out to be an alien who once seduced her grandmother.

Despite the formulaic plots, rating for TNG remained high- so high, in fact, that Paramount executives Brandon Tartikoff ordered a new Trek spin-off in 1993. Tartikoff wanted a show about a father and son who travel through space helping people, but Berman and writing partner Michael Piller had other ideas. They kept the father-and-son angle (Avery Brooks as Captain Sisko and Cirroc Lofton as his boy, Jake) but put them on a remote outpost called Deep Space 9, located near a “wormhole” that very nasty aliens could get through.

Star Trek: Deep Space 9 went beyond TNG to deal with subjects that previous Star Treks had never explored in depth, including religious fanaticism, immigration and the franchise’s first same-sex kiss. And unlike The Next Generation, most of the characters didn’t get along, which heightened the drama. Like TNG, DS9 lasted for seven seasons.

Generation Gap

After Star Trek: The Next Generation ended in 1994, Picard, Data, and company were promoted to the big screen. At first, fans were excited to hear that the movie, Star Trek: Generations, would include Kirk, Spock, and McCoy. But Rick Berman, who produced the film and co-wrote the story, soon angered many of them. How? He killed off Captain Kirk.

When word leaked out before the movie’s release that Kirk was going to die, most fans assumed that he would go out in a blaze of glory, sacrificing himself for the ship. But his death, while it did help Picard defeat the bad guy (played by Malcolm McDowell), was, in a word, anticlimactic. What irked fans of the original series most was that, story-wise, Kirk didn’t have to die- the movie’s plot included a “temporal nexus” that Kirk could have gone to and never aged. All Berman had to do was put Kirk in there at the end of the movie. Said Leonard Nimoy, “To end with a fight scene between Kirk and Malcolm McDowell! What’s the point?”

Generations made more than $75 million at the box office but received mixed reviews. “It is predictably flabby and impenetrable in places,” wrote Janet Maslin of The New York Times. “But it has enough pomp, spectacle, and high-tech small talk to keep the franchise afloat.”

Captain Kate

Maslin was right. The franchise stayed afloat, and Paramount called on Berman to create a fourth Star Trek TV series. The result was Star Trek: Voyager, the first Trek series with a female captain. The concept: Captain Janeway (Kate Mulgrew) and her crew become stranded on the other side of the galaxy and must find their way home. This gave Berman and writers Michael Piller and Jeri Taylor an opportunity to invent new aliens and force the crew to survive without the help of “the mighty Federation.”

Enough viewers turned in to keep it going, but fewer than had watched Deep Space 9, and far fewer than for The Next Generation. And unlike the last two series, Voyager wasn’t syndicated; it was the flagship show for the new United Paramount Network (UPN). To build an entire network around a single show- especially a sci-fi show- was a gamble, but it proved just how big Star Trek had become.

The Seven of Nine Show

Studio bosses had left Berman alone on TNG and DS9; this time he found himself at the mercy of network executives. When they complained that the show wasn’t “sexy” enough, Berman was ordered to bring in curvy actress Jeri Ryan as Seven of Nine, a member of the Borg collective who is captured and rehabilitated by the Voyager crew. After the execs saw Ryan in her skin-tight-Borg costume- she looked like a half-human/half-robot with gray skin- they sent Berman a memo complaining that she was too sexy. Mulgrew complained to Berman about the switch, and he agreed but told her that “ordered were orders.”

The tactic paid off, though, because Voyager’s head writer, Brannon Braga, saw potential in the Seven of Nine character. Most Trek series had one nonhuman who helped the other characters learn about their own humanity. Spock filled that purpose in the first series; Data took that role in TNG. On Voyager, crew members- including the ship’s holographic doctor (Robert Picardo)- ended up teaching the cyborg Seven of Nine how to be human.

An Enterprising Idea

After Voyager‘s seven-year run ended in May 2001, Rick Berman begged Paramount to give Star Trek a one-year hiatus before launching another series. “It’s over saturated,” he argued. “People are losing interest.” They gave him until September.

The struggling UPN network needed viewers, and other than professional wrestling, Star Trek was its only bankable commodity. Berman and co-producer Brannon Braga decided to go back in time in the Trek universe and base a series on how it all began.

By Berman and Braga’s latest series, Enterprise, didn’t look much like any of the other Star Treks. It took place a century before the original series, and there was no Federation, no Prime Directive, and no carpeted bridge. This starship Enterprise looked like a submarine on the inside. Another change: Instead of typical symphonic theme that marked every other Trek incarnation, Enterprise opened with a rock ballad called “Where My Heart Will Take Me,” sung by opera singer Russel Watson.

Archer’s Gang

Enterprise premiered on UPN less than two weeks after the 9/11 terrorist attacks. More than 12 million viewers tuned in looking for a diversion from all the bad news- UPN’s biggest audience ever. And what they saw looked sort of like the familiar Star Trek– there was a Vulcan, played by supermodel Jolene Blalock, and there was a rugged Starfleet captain, Jonathon Archer (Scott Bakula).

Ratings dropped off for the second episode and continued to decline, but compared to other shows on UPN, Enterprise did fairly well. Some critics and die-hard Trek fans, though weren’t happy. What seemed to irritate them most was Berman’s indifference to Star Trek’s canon. For example: Trekkers know that the first captain of the Enterprise was Captain April, not Captain Archer. Plus, some of the familiar Trek villains, like the Cardassians, were missing.

Back to Basics

Even UPN execs noticed the lack of continuity, and they told Berman that if he wanted the show to survive, he’d have to “Trek it up.” By the fourth season (2004-05), Enterprise had finally become what fans were promised in the beginning: a direct prequel laying the foundation for what was to come. Berman wound plots around the franchise’s two most popular villains- the Klingons and the Romulans- and provided detailed explanations to correct continuity issues, such as why the Klingons on later Treks had bumpy foreheads while the original Klingons didn’t (a genetic mutation). Now the faithful could finally watch a real Star Trek! Well, they could have… if only they’d tuned in.

End of the Line

Much to Berman’s dismay, UPN put Enterprise in the infamous Friday-night “death slot,” where no show on a broadcast network had attracted a decent audience in more than a decade. In February 2005, UPN gave it the ax. While the majority of TV viewers barely noticed that Enterprise had even been on, much less canceled, some die-hard Trekkers are to this day livid at UPN (which folded in 2006). According to the fanzine Trekdom, “UPN suits cringed at the thought of intellectually challenging their Sweet Valley High, Moesha, and WWE Smackdown viewers. A network that thrived on fluff didn’t have a high tolerance level for provocative drama.”

Braga, who went on to oversee Fox’s 24, also blamed the network, “I think UPN hurt Voyager and much more with Enterprise, to be on a constantly shifting fledgling network that in some places was on channel 92, if you could find it, and you needed the foil rabbit ears.” Still, Berman says, “I have nothing to be ashamed about. We created 624 hours of television and four feature films and I think we did a hell of a job.”

[Ed. note: The Star Trek franchise now has 13 feature films. The new Star Trek TV series, Discovery, is set to debut September 24 on CBS, before moving to their CBS All Acess streaming service.]

___________________

The article above was reprinted with permission from Uncle John’s Bathroom Reader Tunes Into TV. Since 1988, the Bathroom Reader Institute had published a series of popular books containing irresistible bits of trivia and obscure yet fascinating facts.

If you like Neatorama, you’ll love the Bathroom Reader Institute’s books – go ahead and check ’em out!

How to Listen to Music: A Free Course from Yale University

Taught by Yale professor Craig Wright, this course, Listening to Music, operates on the assumption that listening to music is “not simply a passive activity one can use to relax, but rather, an active and rewarding process.” When we understand the basic elements of Western music (e.g., rhythm, melody, and form), we can appreciate music in entirely new ways. That includes everything from classical music, rock and techno, to Gregorian chant and the blues.

You can watch the 23 lectures above, on YouTube, or Yale’s website, where you’ll also find a syllabus and information on each class session. The main text used in the course is Listening to Music, written by the professor himself.

Listening to Music will be added to the Music section of our ever-growing collection, 1,250 Free Online Courses from Top Universities.

It’s also worth noting that Prof. Wright has created an interactive MOOC called Introduction to Classical Music. You might want to check it out.

Follow Open Culture on Facebook and Twitter and share intelligent media with your friends. Or better yet, sign up for our daily email and get a daily dose of Open Culture in your inbox. 

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How to Listen to Music: A Free Course from Yale University is a post from: Open Culture. Follow us on Facebook, Twitter, and Google Plus, or get our Daily Email. And don’t miss our big collections of Free Online Courses, Free Online Movies, Free eBooksFree Audio Books, Free Foreign Language Lessons, and MOOCs.

1,600 MOOCs (Massive Open Online Courses) Getting Started in September: Enroll Today

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Take it easy during the Labor Day weekend. But come Tuesday morning, make sure you’re ready to hit the ground running. In September, 1600 MOOCs (Massive Open Online Courses) will be getting underway, giving you the chance to take courses from top flight universities. With the help of Class Central, we’ve pulled together a complete list of September MOOCS. Below, find a few courses that piqued our interest, or rummage through the complete list and find your own:

You can view the big list of MOOCs here.

Follow Open Culture on Facebook and Twitter and share intelligent media with your friends. Or better yet, sign up for our daily email and get a daily dose of Open Culture in your inbox. 

If you’d like to support Open Culture and our mission, please consider making a donation to our site. It’s hard to rely 100% on ads, and your contributions will help us provide the best free cultural and educational materials.

1,600 MOOCs (Massive Open Online Courses) Getting Started in September: Enroll Today is a post from: Open Culture. Follow us on Facebook, Twitter, and Google Plus, or get our Daily Email. And don’t miss our big collections of Free Online Courses, Free Online Movies, Free eBooksFree Audio Books, Free Foreign Language Lessons, and MOOCs.

A New Animation Explains How Caffeine Keeps Us Awake

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Let’s preface this by recalling that Honoré de Balzac drank up to 50 cups of coffee a day and lived to the ripe old age of … 51.

Of course, he produced dozens of novels, plays, and short stories before taking his leave. Perhaps his caffeine habit had a little something to do with that?

Pharmacist Hanan Qasim’s TED-Ed primer on how caffeine keeps us awake top loads the positive effects of the most world’s commonly used psychoactive substance. Global consumption is equivalent to the weight of 14 Eiffel Towers, measured in drops of coffee, soda, chocolate, energy drinks, decaf…and that’s just humans. Insects get theirs from nectar, though with them, a little goes a very long, potentially deadly way.

Caffeine’s structural resemblance to the neurotransmitter adenosine is what gives it that special oomph. Adenosine causes sleepiness by plugging into neural receptors in the brain, causing them to fire more sluggishly. Caffeine takes advantage of their similar molecular structures to slip into these receptors, effectively stealing adenosine’s parking space.

With a bioavailability of 99%, this interloper arrives ready to party.

On the plus side, caffeine is both a mental and physical pick me up.

In appropriate doses, it can keep your mind from wandering during a late night study session.

It lifts the body’s metabolic rate and boosts performance during exercise—an effect that’s easily counteracted by getting the bulk of your caffeine from chocolate or sweetened soda, or by dumping another Eiffel Tower’s worth of sugar into your coffee.

There’s even some evidence that moderate consumption may reduce the likelihood of such diseases as Parkinson’s, Alzheimer’s, and cancer.

What to do when that caffeine effect starts wearing off?

Gulp down more!

As with many drugs, prolonged usage diminishes the sought-after effects, causing its devotees (or addicts, if you like) to seek out higher doses, negative side effects be damned. Nervous jitters, incontinence, birth defects, raised heart rate and blood pressure… it’s a compelling case for sticking with water.

Animator Draško Ivezić (a 3-latte-a-day man, according to his studio’s website) does a hilarious job of personifying both caffeine and the humans in its thrall, particularly an egg-shaped new father.

Go to TED-Ed to learn more, or test your grasp of caffeine with a quiz.

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Ayun Halliday is an author, illustrator, theater maker and Chief Primatologist of the East Village Inky zine.  Follow her @AyunHalliday.

A New Animation Explains How Caffeine Keeps Us Awake is a post from: Open Culture. Follow us on Facebook, Twitter, and Google Plus, or get our Daily Email. And don’t miss our big collections of Free Online Courses, Free Online Movies, Free eBooksFree Audio Books, Free Foreign Language Lessons, and MOOCs.

United Passengers Terrified After Pilot Warns They’ll Be Flying Through “Horrific” Storms And Tornadoes

Some passengers on a United Airlines flight this week heading for Newark were more worried they’d end up in Oz instead of New Jersey after they say the pilot warned them before takeoff that they’d be heading through some particularly nasty weather.

In an announcement over the plane’s speakers on Tuesday night, the pilot “seemed angry” while telling passengers that they’d be flying through “horrific storms including tornadoes” on the flight from Chicago to New Jersey, one traveler told NJ.com.

According to her, he also told passengers to “get to know your neighbors” as the flight would be “very turbulent,” before walking into the cockpit and shutting the door.

That didn’t sit well with passengers, as the flight was already delayed by two hours.

We have just been told that were heading straight for tornadoes and will likely be in the air an extra hour

— Elizabeth Svokos (@miss_svokos) August 23, 2017

The passenger who spoke with NJ.com said flight attendants attempted to soothe worried passengers by saying that it wasn’t unsafe to fly, but that the pilot just wanted them to know there’d be additional delays.

However, as the plane was preparing to taxi to the runway, the pilot announced that they’d have to return to the gate to address a maintenance issue.

Some passengers had had enough by that point, and told the crew they wanted to get off the plane. By that time, the pilot and flight attendants had already worked their allotted hours, so a new crew had to be swapped in for the trip to Chicago.

About 50 passengers decided to make alternate plans and deplaned. The flight eventually took off at 1:14 a.m., about 7 hours after it was originally scheduled.

United says it’s looking into the incident.

“We would never put our crew or our passengers in a situation where it was unsafe to fly,” a United Airlines spokesperson said in a statement. “The safety of the passengers and the crew is always our No. 1 priority.”

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Burger King Giving Free Whoppers To Customers Who Admit To Being Fired

Getting fired from a job is rarely something you want to declare publicly. But what if it gets you a free Whopper at Burger King?

The fast food chain launched its “own your fire” giveaway promotion today, offering free Whoppers to customers who admit to having been dismissed from their job.

And it’s not a matter of just walking up to the counter at BK and saying “I’ve been fired. Whopper me.” You actually have to go on LinkedIn and publicly share that you were fired.

As “severance” for their admission, and their out-of-work status, Burger King will provide 2,500 of these customers with free Whoppers. Sure, it’s not a job, but it’s lunch.

To take part in the promotion, customers must log into LinkedIn and post the public message, “I got fired. I want a free Whopper. #whopperseverance.”

Once the message is received, Burger King will send the individuals a personalized link to register and receive a Whopper severance package, including a Burger King gift card, in the mail.

It’s unclear if Burger King will vet the admissions to determine if customers were actually fired, or why they were fired. We’ve reached out to the company for additional details.

“It has been said, that when one door closes another one opens – in this case, a door for a delicious flame grilled Whopper sandwich,” the chain declares in a statement.

In addition to handing out free sandwiches, Burger King partnered with The Muse, an online career advice company, to offer 30-minute one-on-one question and answer sessions to the first 100 participants.

The NASA Channel App On Roku Doesn’t Work And It Isn’t From NASA

Your best bet to see today’s total eclipse if you live in an area where it isn’t visible is to stream NASA’s cross-country broadcast. It’s available from some cable providers and to stream on your computer, but what if you want it on your TV screen and you’re a cord-cutter? Roku users might download a NASA channel available in their channel store, but they’re in for a bad experience if they do.

There are two reasons for that.

The channel doesn’t work: Consumerist’s tests and reports on Twitter and elsewhere online indicate that the channel doesn’t actually work. It shows six advertisements, then it stalls after loading 13%. We’ve found Twitter posts indicating that this has been a problem at least since April 2017.

The channel doesn’t come from NASA: After all, the space agency probably would have made sure its official channel was working before an event like an eclipse, which it expects 1 billion people worldwide to watch on its stream.

The agency does make its video feed available as an app for various mobile platforms, as well as Amazon’s FireTV and the AppleTV. However, the Roku app is from an independent developer selling ads against NASA’s content. When it loads.

NASA confirmed that it is not behind the Roku channel:

Official NASA app is on lots of devices, but Roku isn’t one of them. Contact the Roku developer or download our app: https://t.co/HA1kqInkiX

— NASA (@NASA) August 14, 2017

If you’re a Roku user and desperate to watch today’s awesome sky event, download the channel Pluto TV, where NASA TV is available as one of many options.

We checked with Roku to find out why this app exists, and whether it’s okay with developers selling ads against public domain government content (or no content at all) and will update this post if we hear back.

The Nano Guitar: Discover the World’s Smallest, Playable Microscopic Guitar

In 1997, the Cornell Chronicle announced: “The world’s smallest guitar — carved out of crystalline silicon and no larger than a single cell — has been made at Cornell University to demonstrate a new technology that could have a variety of uses in fiber optics, displays, sensors and electronics.”

Invented by Dustin W. Carr, the so-called “nanoguitar” measured 10 micrometers long–roughly the size of your average red blood cell. And it had six strings, each “about 50 nanometers wide, the width of about 100 atoms.”

According to The Guardian, the vintage 1997 nanoguitar was actually never played. That honor went to a 2003 edition of the nanoguitar, whose strings were plucked by miniature lasers operated with an atomic force microscope, creating “a 40 megahertz signal that is 130,000 times higher than the sound of a full-scale guitar.” The human ear couldn’t hear something at that frequency, and that’s a problem not even a good amp–a Vox AC30, Fender Deluxe Reverb, etc.–could fix.

Thus concludes today’s adventure in nanotechnology.

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Related Content:

Richard Feynman Introduces the World to Nanotechnology with Two Seminal Lectures (1959 & 1984)

Stephen Fry Introduces the Strange New World of Nanoscience

A Boy And His Atom: IBM Creates the World’s Smallest Stop-Motion Film With Atoms

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