Like HowStuffWorks on Facebook!

Science | Innovation | Repurposed Inventions

Repurposed inventions take recycling to a whole new level by using and improving upon existing technologies. In this section, learn about creative invention mashups and how inventions evolve over time.

Featured
How 2-D Bar Codes Work

Bar codes have grown up in a big way since they hit the market with a bang (or a beep) in the 1970s. Now all you have to do is whip out your smartphone and point it at the nearest 2-D bar code. It may contain a message just for you, dear consumer.


5 Popular Invention Mashups

 5 Popular Invention Mashups

There have been some highly popular invention mashups over the years. Visit HowStuffWorks to see 5 popular invention mashups. See more »

10 New Uses for Old Inventions

 10 New Uses for Old Inventions

There are some cool new uses for old inventions. Visit HowStuffWorks to see 10 new uses for old inventions. See more »

What is the history of the remote control?

 What is the history of the remote control?

What is the history of the remote control? Visit HowStuffWorks to learn what the history of the remote control is. See more »

Top 5 Web Mashups

 Top 5 Web Mashups

Web mashups have resulted in some amazingly useful sites. Visit HowStuffWorks to see the top 5 web mashups. See more »

5 Technology Mashups That Make Your Life Easier

 5 Technology Mashups That Make Your Life Easier

There have been some technology mashups that make your life easier. Visit HowStuffWorks to see 5 technology mashups that make your life easier. See more »

How can a bar code save your life?

 How can a bar code save your life?

How can a barcode save your life? Visit HowStuffWorks to learn how a barcode can save your life. See more »

How 2-D Bar Codes Work

 How 2-D Bar Codes Work

2D barcodes are being used in some interesting ways. Visit HowStuffWorks to learn everything about 2D barcodes. See more »