peta2: At only 16 years old, Tia Blanco is already one of the top women surfers in the world. Learn how her vegan diet has helped Tia surf her way to the top!

If a hotel with an infinite number of rooms has an infinite number of guests, how could it free up space when new guests arrive? Hilbert's “Grand Hotel” paradox has fascinated mathematicians, physicists, philosophers, and theologians, as it encourages another way of thinking about the notion of infinity.

Schrodinger’s hypothetical experiment involved putting an unfortunate cat into a box with a Geiger counter and a vial of deadly poison. Until the box was opened, the cat could be said to be alive, or dead… or possibly in both of these states simultaneously.

The philosopher Friedrich Nietzsche questioned the ability of science to explain and give meaning to our world, daring us to think critically not only about religion, but science, and knowledge itself. Learn all about his ideas in this fun video inspired by vintage video games.

After the rains, there is enough water and food for all to share in the desert and Saguaro National Park can bask in all its glory.

In Apple’s award-winning ad entitled “The Underdogs," we see how four colleagues put together a presentation and prototype in just two days using the company's products and technology.

Jimmy Carter asks Adam Sandler about some biting criticism he had received in regard to his Saturday Night Live appearances. They also talk about the old days, Sandler's various characters, and his movie The Wedding Singer.

In this scene from the classic British sitcom Only Fools and Horses, Del Boy and Rodney are left stranded when their van breaks down on the way to a party, and they really don’t want to be seen in their costumes!

Chris Pratt is a big star in the US, having acted in "Guardians of the Galaxy" and many other movies, but do New Yorkers even care?

Lindsay Lohan and Billy Eichner are very upset about the end of the TV show "How I Met Your Mother." Watch them let out their feelings by destroying a car.

Nick Grimshaw takes pop superstar Harry Styles to connect with some people who don't care much about his fame or musical talent.

By following honeyguides, a species of bird, people in Africa are able to locate bees’ nests to harvest honey. Research now reveals that humans use special calls to solicit the help of honeyguides and that honeyguides actively recruit appropriate human partners. This relationship is a rare example of cooperation between humans and free-living animals.

Blackbeard’s story almost seems mythological, but it's actually based in truth. This video elaborates on the man Edward Thatch, starting with his origins on the island of Nassau to his reign of terror in the Caribbean.

The Underdogs are back in business—small business that is. Escaping from Vivienne and the terrible working atmosphere of her company, the team finds out how to spin an idea into a product, and a product into a company.

When the team realizes how many bags they need to sell, they’re daunted by the scale of the task. But with a pep talk from Bridget and the help of lots of useful technology, they are soon well on their way to success.