Type out a tone and play it back with this fun game

Emanuel Leutze's painting 'Washington Crossing the Delaware' is one of the defining images of the Revolutionary War.

The animatronic shark from 'Jaws' was a complex machine called 'Bruce.'

If a source of music traveled past someone at twice the speed of sound, assuming sufficiently sensitive hearing and powerful equipment, they would hear the music backward.

The US jobs projected to shrink the fastest over the next decade include typists and word processors.

Experience a century of America's healthcare advances with this medical visualization, tracing a sampling of healthcare innovations from head to toe.

See a breakdown of how some of the most common food items are traded across the globe, including the key trade relationships for each item.

Explore the history, structure, and species of Australia's Great Barrier Reef with this interactive journey narrated by Sir David Attenborough.

This interactive website features nearly 40,000 photos from Wikipedia for you to create visual mosaics with.

There are 'YouTube camps' that teach children how to create content for the video platform.

Explore 3D models of some of the most dangerous viruses, allowing us to understand these and other pathogens in new ways.

Miracle berries make things that normally taste acidic or sour, such as lemons, taste sweet, like sugar-coated candy, by binding a special protein called miraculin to taste buds.

Experience 14 billion years of important moments in world history with this scrollable interactive timeline.

Explore an interactive timeline of Earth's 4.5-billion-year history to visualize shifting landmasses and oceans, view the locations of significant asteroid impacts, and learn about major geological and biological events.

Washing dishware before putting it in a dishwasher may reduce the appliance's effectiveness because it dynamically adjusts wash time and temperature based on a sensor that detects dirtiness.

Streaming service Netflix's sound logo 'Tudum' was designed as a key sonic differentiator.

The tallest tsunami in recorded history was 524 meters (1,720 feet) high—taller than the Empire State Building—and occurred in Lituya Bay, Alaska, in 1958 after an earthquake dislodged a rockface into the water.

Watch 4-plus decades of Pixar's opening logos.

Stonehenge was built using giant wooden rollers and precisely carved tongue-and-groove joints to lock the stones in place.

This short animation shows how human beings managed to lug 30-ton stones over miles of prehistoric English countryside and stand them up The Stone Age engineering involved using giant wooden rollers and carving precisely interlocking tongue-and-groove joints to hold the heavy stones in place.

Watch President John F. Kennedy's speech on going to the moon

As part of the up to 15 pounds of seafood they consume daily, sea otters eat urchins that feed on kelp forests—sources of shelter and food to over 800 species—thereby making the marine mammal a keystone species.

Check out some of the best books that can be read in a single day, with titles from Han Kang, Denis Johnson, Muriel Spark, and more.

The Aztec Empire ruled over 80,000 square miles of central Mexico for nearly a century—until a small band of Spanish conquistadors brought it down in 1521.

Find out how important you are to AI tools when they generate text responses with this tool, which estimates the weights of people's names.

Watch footage from the moments the Titanic wreck was discovered by a joint US-French research team in 1985.

Lesser-known phobias include turophobia, or the fear of cheese, and nomophobia, the fear of being without your cell phone.

Explore a detailed map of Odysseus' fictional journey from 'The Odyssey.'

Play the role of a student as you try to navigate college and remain debt-free.

Light takes approximately eight minutes to travel from the sun's surface to Earth, but it takes thousands of years to reach the star's surface from its core—a distance more than 200 times shorter.

Explore (and debunk) the world's most contagious misconceptions—from the 5-second rule to sugar rushes—on this interactive site. Click on each misconception for further evidence.

The final shots of the Civil War were fired in the Arctic over 2 months after the South's surrender.

Apeirophobia is the fear of everlasting life and may stem from the human brain's inability to conceptualize the concept of anything happening beyond what it can project out, such as the concept of an infinite life.

Humans may have as many as 100,000 to 150,000 individual hairs on our scalps, growing at a rate of roughly 1 centimeter per month.

Author David Foster Wallace's 'This Is Water' speech provides guidance for adulthood.

You may be better at spotting a lie when listening to a speaker's voice inflections rather than watching for facial and body cues.

See a 3D reconstruction of Tenochtitlan, the Aztec capital

Located on Ross Island in Antarctica, Mount Erebus is the southernmost active volcano on Earth and features a lava lake—one of eight known worldwide as of 2026—that erupts regularly.

Abraham Lincoln had to sneak into Washington, DC, in disguise for his 1861 inauguration after a detective uncovered a plot to assassinate him in Baltimore.

Use this tool to calculate the dollar value of your parental mental load, from meal planning to coordinating after-school care, then see resources that help generate solutions.

Listen to audio clips from Hoover, a harbor seal named after its insatiable appetite, who learned to say English phrases such as 'hello there' and 'come over here.'

The US has discontinued a variety of different currency denominations over the years—including a $100K bill.