Everyday Innovations

Who invented the toilet? While we wish it were so, it wasn't Thomas Crapper. Surprisingly, toilet design hasn't changed much since the first "water closet" patent in the 1500s.

By Kathryn Whitbourne & Jesslyn Shields

You can find porta-potties at festivals, construction sites and concerts across the planet – but how do they work? Get a closer (non-messy) look here.

When you think of sports drinks, chances are Gatorade comes to mind. But was it the first one? Or just the beneficiary of clever marketing?

By Becky Striepe

Behold the humble spork! Made of the cheapest plastic and seen mostly at public school cafeterias and fast food chains, it doesn't have an inspiring pedigree. But it's been around for a long time.

By Laurie L. Dove

Next Thanksgiving when you find yourself sleeping on Aunt Martha's pullout sofa, it might cheer you up to know that the convertible bed has a long, illustrious history.

By Laurie L. Dove

It's one of those age-old dilemmas – who goes through the revolving door first. It probably doesn't matter. Rumor has it that the inventor didn't want to hold a door open for anyone.

By Laurie L. Dove

It holds together straps, serves as a makeshift button or body art and even dresses up nicely as a friendship pin. Who do we have to thank for this simple wire workhorse?

By Kate Kershner

If you don’t know what tinnovation is, prepare to be amazed. These photos feature neat hacks that turn mere Altoid tins into utility items and art.

Better than buttons? Maybe. Less time-consuming than laces? Definitely. As far as fastening mechanisms go, the zipper is a work of art. Learn exactly what makes up a zipper and how it all fits together so perfectly.

By Tom Harris

Researchers are constantly developing fabrics that can help keep you cool, whether you're working out or trying to get a good night's sleep. But how do they work, and which are the best ones?

By Carrie Whitney, Ph.D.

Many items enjoyed by people of all abilities were originally designed to help people with disabilities. Here are some inventions you may use every day that were originally for the disabled community.

By Alia Hoyt

If you've ever been to an aerial fireworks show, then you know that fireworks have a magic all their own. Ever wonder how they make such incredible colors and designs? Learn all about these pyrotechnics!

By Marshall Brain & Austin Henderson

Got a few grays? Just want a new look? Well, if you are like 75 percent of women, you're part of a billion dollar industry. Learn all about hair coloring and choosing the best color for you.

By Marshall Brain

Want to keep your dog out of the neighbor's yard but feeling guilty pulling out a leash? You might consider an underground or wireless pet fence. Learn how these fascinating systems work and why this specialized fencing industry is booming.

By Melissa Russell-Ausley

In the past few years, tooth-whitening has exploded as the physical upgrade of choice. Unlike nose jobs and chin tucks, just about anybody can afford to try this at home. Learn about different whitening techniques and how they work, and decide if you should give it a try.

By Dr. Jerry Gordon

Breast implants are becoming a popular high school graduation present for parents in the U.S. to give their teens. Learn all about breast implants and the surgical process of augmentation.

By Robert Valdes

On July 2, 2001, heart failure patients gained new hope, as surgeons performed the first artificial heart transplant in nearly two decades. The AbioCor Implantable Replacement Heart is the first completely self-contained artificial heart and is expected to at least double the life expectancy of patients.

By Kevin Bonsor

You see light sticks everywhere during the holidays – especially Halloween. Have you ever wondered why these cool light sources glow? What's happening when you crack one? Take a look inside a light stick.

By Tom Harris

They dispense everything from hairspray to cleaning products to whipped cream. Without them, you'd be doing a whole lot of pumping.

By Tom Harris

Before digital cameras, you needed instant film to get instant pictures. With instant-film photography, you can watch the image slowly come together in a matter of minutes. While it seems like magic, the process relies on elements of science. Find ou

By Tom Harris

Black lights look like normal lights, but they do something completely different. Switch one on, and fingernails, laundry detergent, highlighters, money and teeth will glow in the dark. Find out what why.

By Tom Harris

You want to make a solar water heater using a soda can, but you're not sure how to do it. Learn about how to make a solar water heater using a soda can.

By HowStuffWorks.com Contributors

Swapping out a non-functioning organ for a manmade replacement usually makes sense, but what about a manmade replacement for blood? Learn all about artificial blood.

By Tracy V. Wilson

For such a pedestrian item, mirrors resonate deeply in the human psyche. They represent truth and illusion at the same time, and this dichotomy has shown up in literature time and again.

By Gallagher Flinn

A burn injury is one of the most devastating things a body can endure, and until recently, a serious third-degree burn meant certain death. Skin grown in a lab (yes, you read that right) improves the odds.

By Molly Edmonds