Science | Innovation | Everyday Innovations

Have you ever wondered how black lights, or mirrors work? This collection of articles will explain the workings of some of the most common inventions and innovations you come into contact with everyday.

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How Stethoscopes Work

Stethoscopes started as a way for 19th-century doctors to put some distance between themselves and grubby patients. Today though, this simple listening tool is one of the best ways to diagnose a range of problems.


How Adhesive Tape Works

How Adhesive Tape Works

Adhesive tape is neater and easier to use than glue and paper. Learn more about how adhesive tape sticks, rolls and peels away at HowStuffWorks. See more »

How Stethoscopes Work

How Stethoscopes Work

Stethoscopes started as a way for 19th-century doctors to put some distance between themselves and grubby patients. Learn all about stethoscopes here. See more »

Who invented the sleeper sofa?

Who invented the sleeper sofa?

Ever wondered who invented the sleeper sofa? Check out the long, illustrious history of the sleep sofa invention. See more »

Who invented the revolving door?

Who invented the revolving door?

Who invented the revolving door? Find out here and if the rumor is true that the revolving door inventor didn't want to hold a door open for anyone. See more »

How are bendy straws made?

How are bendy straws made?

Have you ever wondered how bendy straws or flexible straws were made? Who came up with idea to bend a simple drinking tube? See more »

Who invented the safety pin?

Who invented the safety pin?

The safety pin holds together straps, serves as a makeshift button or body art and more. So who invented the safety pin, and who do we have to thank? See more »

How Breast Pumps Work

How Breast Pumps Work

Breast pumps help children get healthy breast milk when schedules or other factors keep mom from being available. Read about breast pumps at HowStuffWorks. See more »

Are patent trolls smothering innovation?

Are patent trolls smothering innovation?

Are patent trolls smothering innovation? Learn about the effects patent trolls can have on innovation at HowStuffWorks. See more »

Quiz: Could you survive among the patent trolls?

Quiz: Could you survive among the patent trolls?

Test your knowledge of patents and patent trolls with this quiz from HowStuffWorks.com. See more »

How Electronic Cigarettes Work

How Electronic Cigarettes Work

Electronic cigarettes give smokers nicotine without the chemicals associated with burning tobacco. Learn more about e-cigarettes at HowStuffWorks. See more »