Engineering is the discipline of design and construction of mechanical devices, equipment, structures and public works systems. Topics include aircraft technologies, buildings, bridges, robotics and heavy machinery.

Recycled Plastic Waste Creates Roads

Smart Wallpaper Contains Fire Alarm

Chinese Robotic Sub Looks Like a Clown Fish

The environment is truly a thing of beauty and should be protected whenever possible. What can we do to save the environment, and what new technology is available to help us?

Red Tide Menaces Florida Coast

Sweden Is Great at Turning Trash to Energy

Male and Female Farmers Cope Differently with Climate Change

We see the destruction that the Earth can unleash in the news on a regular basis. Here you can learn about hurricanes, tornadoes, earthquakes and other forces of nature.

Did Africa Just Record Its Hottest Temperature Ever?

Swamps and Wildfires: A Dangerous Combination

Why Flash Floods Are So Dangerous

Do you know how common everyday items, such as mirrors, fireworks or sunglasses work? This collection of Innovation articles explores the workings of objects you may come into contact with on a regular basis.

Algae: Pond Scum or Food of the Future?

Robot Revolution: Coming to a Restaurant Near You

Who Was Rube Goldberg, and What Are His Contraptions?

From the smallest microbe to the largest mammal, Life Science explores the origins, evolution and expansion of life in all its forms. Explore a wide range of topics from biology to genetics and evolution.

Otzi the Iceman Ate a High-fat Last Meal

Why Walking Through Doorways Makes Us Forget

Research Confirms It: We Really Are Getting Dumber

Explore the weapons and combat systems used by the armed services. A broad range of topics in the Military Channel includes tanks, aircraft, biological warfare and stealth technologies.

Why Nerve Agent Novichok Is So Deadly

If Torture Doesn't Work, Why Do Governments Use It?

Growing Movement of Scientists Pushes for Ban on Killer Robots

Physical science is the study of the physical world around you. Learn about everything from electricity to magnetism in this section.

Trillions and Quadrillions: A Short Guide to Absurdly Big Numbers

Bloodstains at Crime Scene Can Tell Age of Victim or Suspect

The Eyes Have It: Scientists 3-D Print Human Corneas

Do you know what a meteor is, or what scientists mean when they are talking about cryogenics? Our collection of science terms explains the meaning of some of the most common scientific ideas.

10 Things You Should Know About Rachel Carson

Stephen Hawking's Last Paper Takes on the Multiverse

Quiz: How Much Do You Know About Stephen Hawking?

Are vampires real? What is an out-of-body experience? Are crop circles proof that aliens exist? HowStuffWorks explores what is real and what is urban legend with this collection of Science Versus Myth articles.

Do Fire-breathing Dragons Torch Their Teeth?

How Do You Become a Ufologist?

Is There a Hidden Cure for Cancer?

Explore the vast reaches of space and mankind’s continuing efforts to conquer the stars, including theories such as the Big Bang, the International Space Station, plus what the future holds for space travel and exploration.

Could a Galactic Civilization Survive the End of the Universe?

Longest Lunar Eclipse of the Century Is Coming

Mars Moves Closest to Earth Since 2003

Many of us take public transportation or fly in airplanes on a regular basis, but have you ever wondered how all of these things work? This collection of transportation articles help explain how people get from place to place.

'Tree-niner-fife': The Global Language of Pilots

If Cars Have Shoulder Seat Belts, Why Not Airplanes?

Should We Be Jittery About Train Travel?