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What Caused One of the Safest Planes to Crash?

Smithsonian Channel
During a flight from Chicago to Pittsburgh, USAir Flight 427 unexpectedly stalled and immediately crashed. Given the aircraft's almost-flawless safety record, investigators struggle to find strong evidence to determine its cause. From: AIR DISASTERS: Hidden Danger http://bit.ly/1UFufuD

What Caused This 1980 Shipwreck to Tear Apart?

Smithsonian Channel
On September 9, 1980, the MV Derbyshire went down in the Pacific Ocean - the largest British ship ever lost at sea. A team of investigators send down a remote vehicle camera to find out what happened. From the Series: Disasters at Sea: Trapped in Typhoon Alley http://bit.ly/2s2B7rY

What Caused the Giant Piper Alpha Oil Rig Explosion?

Smithsonian Channel
At 14,000 tons and 2.5 times the height of the Statue of Liberty, the Piper Alpha oil rig was one of the largest in the world. But on July 6, 1988, the entire structure became consumed by a devastating and deadly fire. From the show Make It Out Alive: Oil Rig Explosion: http://bit.ly/2xTAiqC

What Caused the Madness of King George III?

Smithsonian Channel
George III was famous for his madness, but it’s only recently that we’ve started to ask why. Some people have suggested porphyria or bipolar disorder – others point to more personal reasons. From the Series: Private Lives of Monarchs: George III & Prince Regent http://bit.ly/2Ir26qc

What Created These Strange Geoglyphs in South Africa?

Smithsonian Channel
In the Karoo region of South Africa, mysterious spiral shapes carved into the ground have attracted conspiracy theorists who liken them to the famous geoglyphs in the Nazca desert. From the Series: Aerial Africa: Wild South Coast http://bit.ly/2HdB0ke

What David Hockney's Brilliant Collages Reveal About Photos

Smithsonian Channel
David Hockney considered photography a lifeless medium--at least compared to a drawing or painting. But a photographic experiment yielded a completely unexpected, and transformative, result. From: HOCKNEY http://bit.ly/2fCQwY9

What Did WWI Soldiers Leave Behind in Their Secret Bunkers?

Smithsonian Channel
The French-German border is littered with as many as 500 underground sites used during World War I. Researcher Jeff Gusky explores them and finds a vivid record of the lives the U.S. and German soldiers who fought here led. From: AMERICANS UNDERGROUND: SECRET CITY OF WWI http://bit.ly/2n4JNxk

What Did You Dream? -- Wayuu Dream Interpretation

Smithsonian Center for Folklife and Cultural Heritage
What's in a greeting? Instead of wishing their neighbors good morning, the Wayuu people of Colombia and Venezuela ask each other about the preceding night's dreams. Dream interpretation plays a significant role in the linguistic and communal practices of the Wayuu. Videography by Sara Legg Editing by Alexander Jusdanis [Catalog No. CFV10576; Copyright 2013 Smithsonian Institution]

What Digs 130,000 Cubic Yards of Soil a Day?

Smithsonian Channel
At 450-feet long and 80-feet wide, IBN Battuta is one of the most powerful cutter suction dredgers in the world. In just one day, it collects enough soil to fill 625,000 barrels. From: MIGHTY SHIPS: IBN Battuta http://bitly.com/1FuxdqX

What Do Elephant Shrews Eat?

Smithsonian Channel
Elephant shrews at Smithsonian's National Zoo enjoy a diet that's similar to what theyd get in the wild. A caretaker discusses their preferences. #ZooQs From: WILD INSIDE THE NATIONAL ZOO: Baby Boom http://bit.ly/2eErie6

What Do Elephants Use Their Trunks For?

Smithsonian Channel
Incredibly, there are over 150,000 muscle units and tendons in an elephant's trunk. But what do these animals use one of their most distinctive physical features for? Caretakers at Smithsonian's National Zoo fill us in. #ZooQs From the Series: Wild Inside the National Zoo http://bit.ly/2y61TUM

What Do Native American Carvings in French WWI Quarries Mean?

Smithsonian Channel
Why is there a Native American canoe carved in an abandoned quarry inhabited by U.S. soldiers during WWI? The answer leads back to Point Pleasant, Maine--home of the Passamaquoddy Tribe. From: AMERICANS UNDERGROUND: SECRET CITY OF WWI http://bit.ly/2n4JNxk

What Do Otters Eat?

Smithsonian Channel
For hungry Asian small-clawed otters at Smithsonian's National Zoo, variety is the spice of life. A caretaker explains what items are on a typical menu. #ZooQs From the Series: Wild Inside The National Zoo http://bit.ly/2y61TUM

What Do Tamanduas Eat?

Smithsonian Channel
Despite being a type of arboreal anteater, tamanduas don't only enjoy ants. A caretaker at Smithsonian's National Zoo tells us more. #ZooQs From: WILD INSIDE THE NATIONAL ZOO: Baby Boom http://bit.ly/1F3AiB1

What Do These Trees Have to Reveal About UFOs?

Smithsonian Channel
Tree samples at an alleged UFO crash site outside Pittsburgh reveal a dramatic decrease in growth around 1965--the same year many locals reported a mysterious, bright object in the skies. From: UFOS DECLASSIFIED: Roswell Report http://bit.ly/1N6igwL

What Do These Turkish Forts Tell Us About the Arab Revolt?

Smithsonian Channel
With almost no archeological evidence of the Great Arab Revolt, researchers take to the air to get a new perspective on the timeworn battlegrounds. From the Series: Mystery Files: Lawrence of Arabia http://bit.ly/2kX1FKm

What Do Tortoises Eat?

Smithsonian Channel
Consummate herbivores, tortoises have a healthy and hearty diet at Smithsonian's National Zoo. Here, caretakers walk us through what goes into their special salad mix. From: WILD INSIDE THE NATIONAL ZOO: Reptile Rejuvenation http://bitly.com/1DIGxcp

What Do Visitors Really Know about Evolution?

National Museum of Natural History

What Do You Do if a Giant Ship Can't Stay Balanced in Water?

Smithsonian Channel
The Yasin Bey, a unique hybrid of a power plant and giant ship, is in trouble. It's heavily unbalanced because of a problem with its ballast system. The crew scramble to find a solution, ahead of its imminent launch. From the Series: Mighty Ships: Yasin Bey http://bit.ly/2NF7pWl

What Do You Know About Snakes?

Smithsonian Channel
These five-year-olds know a thing or two about snakes, but what do they know about titanoboa?

What Do You Know About the Golden Gate Bridge?

Smithsonian Channel
Our country's most iconic bridge stretches across one of the world's finest natural harbors. From the Show: Aerial America: California http://bit.ly/2yrnkjB

What Do da Vinci and World-Record Skydiver Alan Eustace Have in Common? – STEM in 30

National Air and Space Museum
In 2014, Alan Eustace set the world record for the highest altitude jump at 135,899 feet. Learn about his journey and find out about the daredevils who preceded Eustace. More info: airandspace.si.edu/stemin30

What Does Biodiversity Do?

Smithsonian Marine Station at Fort Pierce
I created this video with the YouTube Video Editor (http://www.youtube.com/editor)

What Does Biodiversity Do?

Smithsonian Marine Station at Fort Pierce
Coral reefs have tremendous diversity, but what does that diversity do? Is one crab different from another? One coral really that different from the next? Join Smithsonian scientist Seabird McKeon and colleagues at the Carrie Bow Cay Marine Station, Belize to find out! Send questions on twitter by tagging posts with #BiodiversityChat
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