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What is optical audio?
electronics.howstuffworks.com/gadgets/audio-music/optical-audio.htm
Optical audio offers a new way to send audio and video from your gear to your ear. Learn how optical audio works.
How to Conserve Energy at Home
home.howstuffworks.com/green-living/how-to-conserve-energy-at-home.htm
What is "energy"? Where does it come from? How do we pay for it? Learn the answers to these questions, and find out how to live more efficiently in your home.
What Is ROM? How Read-Only-Memory Works in Computers
computer.howstuffworks.com/rom.htm
Read-only memory is not only essential to your computer, but is also used in everything from video games to microwaves. Learn about the different types of ROM and how they're used.
How Vision Works
health.howstuffworks.com/mental-health/human-nature/perception/eye.htm
A fascinating article that describes how your eyes and vision works!
How do you find a stud in a wall without a stud finder?
home.howstuffworks.com/find-stud-in-wall-without-stud-finder.htm
Studs are the beams that frame your house and hold up your walls. Learn how to find a stud in a wall without using a stud finder in this article.
Early Twentieth Century Railroads
history.howstuffworks.com/american-history/early-twentieth-century-railroads.htm
Early 20th-century railroads saw major improvements in safety and comfort, as well as new regulations. Learn more about railroads in the early 1900s.
How does a 'bionic eye' allow blind people to see?
health.howstuffworks.com/medicine/modern-technology/bionic-eye.htm
A company called Second Sight has received FDA approval to begin U.S. trials of a retinal implant system that gives blind people a limited degree of vision. Find out how the 'bionic eye' will work.
Fiber Optics
computer.howstuffworks.com/fiber-optics-info.htm
Fiber Optics, the technique of transmitting light through transparent, flexible fibers of glass or plastic. Learn all about fiber optics at HowStuffWorks.
How Much Can You Save by Unplugging Appliances?
money.howstuffworks.com/personal-finance/budgeting/how-much-save-unplugging-appliances.htm
Unplugging appliances can save you money, but do you know how much? Learn how much can you save by unplugging appliances at HowStuffWorks.com.
How Trailer Wiring Testers Work
auto.howstuffworks.com/auto-parts/towing/equipment/protective-towing/trailer-wiring-testers.htm
Trailer wiring testers can help ensure that towing is done in a safe and legal manner. Learn all about trailer wiring testers at HowStuffWorks.