In the old-style analog telephone system, voltage increased and decreased across the wires, corresponding to the human voice signal. But in a digital system, that all changes. Learn how the human voice is changed into binary values, sent over the system, and then converted back into volts with the voltage applied to the speaker in the phone handset. The human ear takes it from there.

Ariel is a fun-loving and mischievous mermaid who is enchanted with all things human. Disregarding her father's order to stay away from the world above the sea, she swims to the surface and, in a raging storm, rescues Prince Eric, the man of her dreams. Determined to be human, she strikes a bargain with the devious sea witch, Ursula, and trades her fins and beautiful voice for legs. With her best friend Flounder, and her reluctant chaperon Sebastian...

If you have a clever anecdote, an interesting memory, a new way to explain how something works, or an opinion on a social or political issue, then you have an essay in you. Unlike a novel, history book, or scientific publication, essays provide you with the versatility to express all the various facets that make you you. The concise and direct nature of an essay means that you may tap into your sense of wit, share your individual point of view, persuade...

One moonlit night, Sophie is snatched from her bed by an awesome giant who whisks her away on a magical and funny adventure. When Sophie learns that a monstrous crew of meanies is gobbling up children, she sets out to stop them once and for all, with the help of her new, rather large, friend. The enchanting children's book from author Roald Dahl comes to life in this classic, animated musical feature.

In his third year at Hogwarts, Harry is hunted by Sirius Black, a dangerous man who has escaped from the Azkaban prison. Sirius has one mission, to track down and kill Harry. It will be an exciting and dangerous year for Harry and his friends.

Be our guest at the enchanted 25th Anniversary celebration, a groundbreaking star in the legacy of animation and a new addition to the The Walt Disney Signature Collection. Cast a spell on your imagination and embark on an epic adventure with Belle, our brave and independent heroine, the Beast, who has the heart and soul of a prince, the music you'll never forget and all the fun characters you love.

Mulan: Mulan is a young Chinese woman who breaks tradition and joins the Imperial army, accompanied by a her guardian dragon, Mushu, to battle an invading army. Mulan 2: Mulan and Shang are engaged to be married and must journey to a distant city in a valiant quest to save their beloved empire.

Hotshot rookie race car Lightning McQueen is living life in the fast lane until he hits a detour on his way to the most important race of his life. Stranded in Radiator Springs, a forgotten town on old Route 66, he meets Sally, Mater, Doc Hudson, and a variety of quirky characters who help him discover that there's more to life than trophies and fame.

Harry Potter returns to Hogwarts for another year of schooling and learns more about the dark past of the boy who grew up to become Lord Voldemort. There was a time when Hogwarts was thought of as a safe haven, but thanks to Voldemort's tightening grip on both the Muggle and wizarding worlds, that simply isn't the case anymore.

Twenty-year-old Sophie is preparing to marry at her mother's hotel on a Greek island. She has a carefree life, a loving fiancee, and great friends. She is only missing one thing: a father. By reading her mother's diary she discovers that she has three possible fathers, so she secretly invites all three men to the wedding in a desperate bid to discover which of them is her father. But not all goes according to plan. Now, old loves are re-kindled, new...