Brothers Grimm saved classic fairy tales by changing them forever

Star Trek: The Original Series: The 10 greatest episodes (+ video)

Star Trek: The Original Series first aired 46 years ago Friday, and Google is marking the occasion with an elaborate, interactive doodle that includes a number of Trek tropes, including a doomed redshirt, a chief communications officer in soft-focus, a bulkhead full of tribbles, a generic rocky planet, and a whole lot of blinking and beeping and flashing lights.

The doodle is based on a first-season episode titled 'The Arena,' in which Captian Kirk is transported to a planet that looks suspiciously like the outskirts of Los Angeles, where he must face off against a reptilian humanoid. By our calculations, 'The Arena' was the 17th greatest episode. Here are our top ten:

Did you find all the secrets in Google's Star Trek: The Original Series doodle?

Star Trek: The Original Series made its debut 46 years ago. In that time, the show created a media empire, inspired many rising scientists, and played a surprising role in the American Civil Rights movement. 

Google honored the original series on Friday with an interactive doodle. The mini Star Trek episode follows a Googlized Captain Kirk from the bridge of the Starship Enterprise to the clutches of danger. Along the way, Google's design team hid many secrets. 

Here's a complete guide to the winks, spoofs, and inside jokes tucked into doodle. 

Maria Montessori: Is the Montessori method any good?

Google celebrates the 142nd birthday of Italian physician Maria Montessori. Does Montessori's 'child-centered' method work?

Maria Montessori and 10 famous graduates from her schools

Maria Montessori stands in many ways as the mother of alternative education. The Italian physician and teacher invented a new kind of school, one with self-directed learning, classrooms with mixed age groups, and no grades. Now, on what would have been her 142 birthday, thousands of schools bear her name. These Montessori schools have some very famous alumni, many of which credit the free-flowing classes with teaching them to think differently and allowing them to change the world. Here are 10 of the most prominent.

How HDR helps your iPhone or Android camera 'go pro'

'High dynamic range' – or HDR – takes multiple exposures, then stitches them together. Both the iPhone and Android devices come with HDR options. 

Julia Child's first recipe: shark repellent

Before becoming a celebrity chef, Julia Child, whom Google is celebrating on her 100th birthday, worked for the clandestine Office of Strategic Service, where she first put to use her latent culinary skills.

Julia Child was a spy. Was she any good at it? (+video)

People remember Julia Child for her wit, charm, and cheer. But before Wednesday's Google Doodle, before her TV shows, and before she moved to Paris, Julia Child worked as an intelligence officer.

10 great Siri tricks that iPhone owners probably don't know

Apple first introduced Siri in October 2011, inspiring widespread excitement over what the virtual assistant was capable of. Still in her beta stage, she's full of surprises – and rumored to be gearing up for an upgrade with the next iPhone. In the meantime, we've compiled a list of Siri's 10 most useful, entertaining, and underused tricks.

Think we missed one? Drop us a line in the comments section below.

Amelia Earhart: Pilot and feminist (+video)

Amelia Earhart broke aviation records and gained the respect of male pilots. But Amelia Earhart also held modern views about gender roles, and demanded equal status in her marriage.

Amelia Earhart: Why the mystery continues (+video)

Today's Google Doodle honors Amelia Earhart even as the latest $2.2 million search for her plane runs afoul of a Pacific Island reef. The famous aviatrix would have been 115 today.