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How Were the Pyramids Built?

Adults Construction History Society
The most common misconception about the pyramids is that they were built by slaves. Recent archeological evidence suggests they were instead constructed by paid workers. Some may have performed this work as a form of tax payment for several months of the year. Skilled engineers would have planned and orchestrated the building. An estimated 10,000-20,000 people would have been working on a pyramid at any one point in time. They were well fed and provided with shelter near the pyramids. Plus their burial sites close by indicate they were respected and were not slaves.

This 77-year-old grandma can lift more than you

Adults Health Life Sports
See what a day at the gym is like with Willie Murphy, a 77-year-old power lifter and grandmother. Video by Lauren Petracca for the Democrat and Chronicle.

How many universes are there?

Adults Science Space
The fact that no one knows the answer to this question is what makes it exciting. The story of physics has been one of an ever-expanding understanding of the sheer scale of reality, to the point where physicists are now postulating that there may be far more universes than just our own. Chris Anderson explores the thrilling implications of this idea.

What's The Deadliest Animal In The World?

Adults Animals Life Nature
The Deadliest Animal In The World.

The Meaning of Life, explained by 3rd Graders

Adults Life Philosophy
At 6 years old, your whole life stretches ahead of you.

Early Birds vs Night Owls

Adults Biology Genetics Society
Are night owls really lagging behind in life?

Pan - Official Teaser Trailer

Adults Film Marketing
Offering a new take on the origin of the classic characters created by J.M. Barrie, the action adventure follows the story of an orphan who is spirited away to the magical Neverland. There, he finds both fun and dangers, and ultimately discovers his destiny-to become the hero who will be forever known as Peter Pan.

Bionic Eye Allows A Blind Man To See After 33 Years.

Adults Biotechnology Disability
Larry Hester, 66, has been blind for half his life from a condition called retinitis pigmentosa. In September, 2014, an electronic stimulator was surgically implanted in his left eye. On October 1st, 2014 Duke eye surgeon Dr. Paul Hahn turned it on for the first time. While the device does not restore vision in the normal sense, it provides light-and-darkness differentiation.

Time-Lapse: Build Your LEGO Christmas!

Adults Construction Religion
Watch Australia's largest LEGO Christmas Tree being built! Check it out this Christmas

Watch One Of The World's Largest Solar Farms Get Built

Adults Global Warming Technology
When complete, the 550-megawatt Topaz Solar Farms will have more than 8 million modules installed. The project will cover 4,700 acres in San Luis Obispo County and will provide enough electricity equivalent to powering more than 180,000 average California households.

MinuteEarth: The Story of Our Planet

Adults History World
Agriculture, hula hoops, SARS, and THIS video: how long did they take to get around the earth?

Frans Lanting: Photos that give voice to the animal kingdom

Adults Animals Nature Photography
Nature photographer Frans Lanting uses vibrant images to take us deep into the animal world. In this short, visual talk he calls for us to reconnect with other earthly creatures, and to shed the metaphorical skins that separate us from each other.

How Tall Can Mountains Be?

Adults Physics World
What is the maximum height for a mountain on Earth!? And why?

Jurassic World - Official Trailer

Adults Film Marketing
Steven Spielberg returns to executive produce the long-awaited next instalment of his groundbreaking Jurassic Park series, Jurassic World. Colin Trevorrow directs the epic action-adventure from a screenplay he wrote with Derek Connolly. Frank Marshall and Patrick Crowley join the team as producers.

Scary black seadevil fish caught on video at depth of 1,900 feet

Adults Animals Nature
Deep-sea anglerfish are strange and elusive creatures that are very rarely observed in their natural habitat. Fewer than half a dozen have ever been captured on film or video by deep diving research vehicles. This little angler, about 9 cm long, is named Melanocetus. It is also known as the Black Seadevil and it lives in the deep dark waters of the Monterey Canyon.

Will Marshall: Tiny satellites show us the Earth as it changes in near-real-time

Adults Space Technology
Satellite imaging has revolutionized our knowledge of the Earth, with detailed images of nearly every street corner readily available online. But Planet Labs' Will Marshall says we can do better and go faster - by getting smaller. He introduces his tiny satellites - no bigger than 10 by 10 by 30 centimeters - that, when launched in a cluster, provide high-res images of the entire planet, updated daily.

Toronto Maple Leafs fans finish singing US anthem after technical difficulties

Adults Politics Sports
The NHL's Nashville Predators might have creamed the Toronto Maple Leafs on the ice Tuesday night, but ahead of the game, there was a technical difficulty for the U.S. side. The microphone cut out while a woman was singing "The Star Spangled Banner." Instead of taking a moment to fix the sound system, the fans in the Canadian arena barely missed a beat at filling in the rest of the U.S. national anthem.