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How to Find Sunken Treasure

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Modern treasure hunting isn’t all maps and shovels—it takes science, too.

STEP 1: PICK A SHIPWRECK

There are plenty of ships in the sea. According to UNESCO, roughly three million shipwrecks across the globe are just waiting to be found, and at least 100 of them boast potential values that top $50 million. So what’s the best-case scenario? Finding the Flor de la Mar, a Portuguese ship that sank north of Sumatra. The storied treasure includes 60 tons of gold and 200 chests of diamonds, emeralds, rubies, and sapphires worth up to $3 billion.

STEP 2: IMAGINE THE RICHES THAT COULD BE YOURS

Shiny!

STEP 3: HIRE PROFESSIONALS

It may seem like cheating, but most unclaimed treasures are too deep for scuba gear.

In fact, salvage companies invest big bucks in equipment to travel miles below the surface. Odyssey Marine Exploration, one of the world’s premier firms, has spent at least $100 million on the essentials, including its 251-foot flagship, the Odyssey Explorer. The ship’s capable of carrying 60 days’ worth of provisions for its 42 crew members; three tow fish for seabed surveys; and two remotely operated vehicles (ROVs) that can dive to 4,000 meters and beyond.

All that equipment pays off in sweet government contracts. In 2010, the Brits gave Odyssey salvage work, paired with archaeological responsibilities, for the SS Gairsoppa—a WWII merchant ship torpedoed about 300 miles southwest of Galway, Ireland, while carrying at least 219 tons of silver. The water’s extreme depth has protected the sunken treasure for decades (it’s 2.9 miles down, nearly half a mile deeper than the Titanic). But the rising price of precious metals has made salvaging the loot an attractive proposition. Today, the Gairsoppa’s cargo of bullion, ingots, and coins is worth around $270 million.

STEP 4: BE PATIENT

Unfortunately, you can’t just take the barnacle-crusted money and run. As the folks at Odyssey know, recovery is a lengthy process, made even longer by archaeological requirements. Here’s how a typical salvage works: First, the team dispatches a remote-controlled submersible to survey the wreck and take photos to create a detailed mosaic of the scene. Marine archaeologists then direct a fleet of ROVs to search the ship, recording the distribution of artifacts and cataloging any organisms that now call the ship home. When they begin recovering objects, a computer program maps and determines the precise location of each artifact, using a network of acoustic transponders placed on the ocean floor to triangulate locations. Then comes the fun part.

Like a high-stakes arcade crane, scientists use ROVs to spray away the sediment with gentle water pressure, then suck up the tiny, fragile objects with a low-power vacuum. But that’s just the artifacts. Recovering all that precious bullion poses even more technical challenges. Technicians must pluck individual coins and ingots from rotten wooden storage structures and navigate the remote vehicles past rusted metal containers. Odyssey began work on the Gairsoppa in September 2011, and it’s still picking the ship clean. Once it’s done the Gairsoppa will hold the title of largest marine salvage of precious metals in history.

STEP 5: FIGHT FOR YOUR RIGHT TO BOOTY

There’s just one hitch in the plunder recovery biz—sometimes the original owners want their loot back. Odyssey recently had to hand over several hundred million dollars’ worth of gold and silver it had salvaged in 2007 from the Spanish galleon Nuestra Señora de las Mercedes. The Spanish government successfully argued in a U.S. federal court that the treasure still belonged to Spain—although the Spaniards also had to fend off a surprise last-minute claim from Peru, where the metal was mined, refined, and coined. Funny how everyone becomes interested in history when there’s a small mountain of gold coins at stake!

This article originally appeared in mental_floss magazine, available wherever brilliant/lots of magazines are sold. Get a free issue here!

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10 Memorable Neil deGrasse Tyson Quotes
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Neil deGrasse Tyson is America's preeminent badass astrophysicist. He's a passionate advocate for science, NASA, and education. He's also well-known for a little incident involving Pluto. And the man holds nearly 20 honorary doctorates (in addition to his real one). In honor of his 59th birthday, here are 10 of our favorite Neil deGrasse Tyson quotes.

1. ON SCIENCE

"The good thing about science is that it's true whether or not you believe in it."
—From Real Time with Bill Maher.

2. ON NASA FUNDING

"As a fraction of your tax dollar today, what is the total cost of all spaceborne telescopes, planetary probes, the rovers on Mars, the International Space Station, the space shuttle, telescopes yet to orbit, and missions yet to fly?' Answer: one-half of one percent of each tax dollar. Half a penny. I’d prefer it were more: perhaps two cents on the dollar. Even during the storied Apollo era, peak NASA spending amounted to little more than four cents on the tax dollar." 
—From Space Chronicles

3. ON GOD AND HURRICANES

"Once upon a time, people identified the god Neptune as the source of storms at sea. Today we call these storms hurricanes ... The only people who still call hurricanes acts of God are the people who write insurance forms."
—From Death by Black Hole

4. ON THE BENEFITS OF TECHNOLOGY INVENTED FOR USE IN SPACE

"Countless women are alive today because of ideas stimulated by a design flaw in the Hubble Space Telescope." (Editor's note: technology used to repair the Hubble Space Telescope's optical problems led to improved technology for breast cancer detection.)
—From Space Chronicles

5. ON THE DEMOTION OF PLUTO FROM PLANET STATUS 

PBS

"I knew Pluto was popular among elementary schoolkids, but I had no idea they would mobilize into a 'Save Pluto' campaign. I now have a drawer full of hate letters from hundreds of elementary schoolchildren (with supportive cover letters from their science teachers) pleading with me to reverse my stance on Pluto. The file includes a photograph of the entire third grade of a school posing on their front steps and holding up a banner proclaiming, 'Dr. Tyson—Pluto is a Planet!'"
—From The Sky Is Not the Limit

6. ON JAMES CAMERON'S TITANIC

"In [Titanic], the stars above the ship bear no correspondence to any constellations in a real sky. Worse yet, while the heroine bobs ... we are treated to her view of this Hollywood sky—one where the stars on the right half of the scene trace the mirror image of the stars in the left half. How lazy can you get?"
—From Death by Black Hole

7. ON DEATH BY ASTEROID

"On Friday the 13th, April 2029, an asteroid large enough to fill the Rose Bowl as though it were an egg cup will fly so close to Earth that it will dip below the altitude of our communication satellites. We did not name this asteroid Bambi. Instead, we named it Apophis, after the Egyptian god of darkness and death."
—From Space Chronicles

8. ON THE MOTIVATIONS BEHIND AMERICA'S MOONSHOT

"[L]et us not fool ourselves into thinking we went to the Moon because we are pioneers, or discoverers, or adventurers. We went to the Moon because it was the militaristically expedient thing to do."
—From The Sky Is Not the Limit

9. ON INTELLIGENT LIFE (OR THE LACK THEREOF)

Perhaps we've never been visited by aliens because they have looked upon Earth and decided there's no sign of intelligent life.
Read more at: https://www.brainyquote.com/quotes/quotes/n/neildegras615117.html
Perhaps we've never been visited by aliens because they have looked upon Earth and decided there's no sign of intelligent life.
Read more at: https://www.brainyquote.com/quotes/quotes/n/neildegras615117.html

"Perhaps we've never been visited by aliens because they have looked upon Earth and decided there's no sign of intelligent life."

10. PRACTICAL ADVICE IN THE EVENT OF ALIEN CONTACT 

A still from Steven Spielberg's E.T. the Extra-Terrestrial
Universal Studios
"[I]f an alien lands on your front lawn and extends an appendage as a gesture of greeting, before you get friendly, toss it an eightball. If the appendage explodes, then the alien was probably made of antimatter. If not, then you can proceed to take it to your leader."
—From Death by Black Hole
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40 Fun Facts About Sesame Street
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Now in its 47th season, Sesame Street is one of television's most iconic programs—and it's not just for kids. We're big fans of the Street, and to prove it, here are some of our favorite Sesame facts from previous stories and our Amazing Fact Generator.

Sesame Workshop

1. Oscar the Grouch used to be orange. Jim Henson decided to make him green before season two.

2. How did Oscar explain the color change? He said he went on vacation to the very damp Swamp Mushy Muddy and turned green overnight.

3. During a 2004 episode, Cookie Monster said that before he started eating cookies, his name was Sid.

4. In 1980, C-3PO and R2-D2 visited Sesame Street. They played games, sang songs, and R2-D2 fell in love with a fire hydrant.

5. Mr. Snuffleupagus has a first name—Aloysius

6. Ralph Nader stopped by in 1988 and sang "a consumer advocate is a person in your neighborhood."

7. Caroll Spinney said he based Oscar's voice on a cab driver from the Bronx who brought him to the audition.

8. In 1970, Ernie reached #16 on the Billboard Hot 100 with the timeless hit "Rubber Duckie."

9. One of Count von Count's lady friends is Countess von Backwards, who's also obsessed with counting but likes to do it backwards.

10. Sesame Street made its Afghanistan debut in 2011 with Baghch-e-Simsim (Sesame Garden). Big Bird, Grover and Elmo are involved.

11. According to Muppet Wiki, Oscar the Grouch and Count von Count were minimized on Baghch-e-Simsim "due to cultural taboos against trash and vampirism."

12. Before Giancarlo Esposito was Breaking Bad's super intense Gus Fring, he played Big Bird's camp counselor Mickey in 1982.

13. Thankfully, those episodes are available on YouTube.

14. How big is Big Bird? 8'2". (Pictured with First Lady Pat Nixon.)

15. In 2002, the South African version (Takalani Sesame) added an HIV-positive Muppet named Kami.

16. Six Republicans on the House Commerce Committee wrote a letter to PBS president Pat Mitchell warning that Kami was not appropriate for American children, and reminded Mitchell that their committee controlled PBS' funding.

17. Sesame Street's resident game show host Guy Smiley was using a pseudonym. His real name was Bernie Liederkrantz.

18. Bert and Ernie have been getting questioned about their sexuality for years. Ernie himself, as performed by Steve Whitmere, has weighed in: “All that stuff about me and Bert? It’s not true. We’re both very happy, but we’re not gay,”

19. A few years later, Bert (as performed by Eric Jacobson) answered the same question by saying, “No, no. In fact, sometimes we are not even friends; he can be a pain in the neck.”

20. In the first season, both Superman and Batman appeared in short cartoons produced by Filmation. In one clip, Batman told Bert and Ernie to stop arguing and take turns choosing what’s on TV.

21. In another segment, Superman battled a giant chimp.

22. Telly was originally "Television Monster," a TV-obsessed Muppet whose eyes whirled around as he watched.

23. According to Sesame Workshop, Elmo is the only non-human to testify before Congress.

24. He lobbied for more funding for music education, so that "when Elmo goes to school, there will be the instruments to play."

25. In the early 1990s, soon after Jim Henson’s passing, a rumor circulated that Ernie would be killed off in order to teach children about death, as they'd done with Mr. Hooper.

26. According to Snopes, the rumor may have spread thanks to New Hampshire college student, Michael Tabor, who convinced his graduating class to wear “Save Ernie” beanies and sign a petition to persuade Sesame Workshop to let Ernie live.

27. By the time Tabor was corrected, the newspapers had already picked up the story.

28. Sesame Street’s Executive Producer Carol-Lynn Parente joined Sesame Workshop as a production assistant and has worked her way to the top.

29. Originally, Count von Count was more sinister. He could hypnotize and stun people.

30. According to Sesame Workshop, all Sesame Street's main Muppets have four fingers except Cookie Monster, who has five.

31. The episode with Mr. Hooper's funeral aired on Thanksgiving Day in 1983. That date was chosen because families were more likely to be together at that time, in case kids had questions or needed emotional support.

32. Mr. Hooper’s first name was Harold.

33. Big Bird sang "Bein' Green" at Jim Henson's memorial service.

34. As Chris Higgins put it, the performance was "devastating."

35. Oscar's Israeli counterpart is Moishe Oofnik, whose last name means “grouch” in Hebrew.

36. Nigeria's version of Cookie Monster eats yams. His catchphrase: "ME WANT YAM!"

37. Sesame's Roosevelt Franklin ran a school, where he spoke in scat and taught about Africa. Some parents hated him, so in 1975 he got the boot, only to inspire Gob Bluth’s racist puppet Franklin on Arrested Development 28 years later.

38. Our good friend and contributor Eddie Deezen was the voice of Donnie Dodo in the 1985 classic Follow That Bird.

39. Cookie Monster evolved from The Wheel-Stealer—a snack-pilfering puppet Jim Henson created to promote Wheels, Crowns and Flutes in the 1960s.

40. This puppet later was seen eating a computer in an IBM training film and on The Ed Sullivan Show.

Thanks to Stacy Conradt, Joe Hennes, Drew Toal, and Chris Higgins for their previous Sesame coverage!

An earlier version of this article appeared in 2012.

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