Other Gadgets
Want to learn more about gadgets? Explore gadgets through the decades and see how some of your favorite gadgets work.
Can I turn my iPhone into a guitar amp?
Are premium audio cables worth the investment?
Headphones vs. Earbuds: Which Are Better?
A Breathalyzer for Drugs? We're Not There Yet
Wearable Alcohol Sensor Could Text You if You're Too Drunk
Can Other People Unlock My Car Door With Their Remote?
How Rolex Came to Rule the Wrist
10 Ways Watches Have Evolved
Why don't we wear wristwatches anymore?
People Still Use Fax Machines, But, Um, Why?
When Was the Fax Machine Invented?
How Broadcast Fax Works
Running While Female: Safety Apps and Tech
How can a bracelet track your heart rate?
How Athos Clothing Works
New MIT Headset Can 'Hear' Your Thoughts and Respond
How Amazon Echo Works
14 Apple Products That Failed Miserably
The Uber-popular Aeron Chair Was First Made for Grandma
How Virtual Windows Work
How a Clothes Steamer Works
How Digital Shopping Lists Work
How Mug Warmers Work
How Rapid Drink Chillers Work
How Satellite Phones Work
How Electronic Language Translators Work
How Apple Airport Express Works
Learn More / Page 2
Metal detectors can do more than just detect metal -- they can tell you the kind of metal it is and even how deep it's buried. Learn how these units pinpoint and identify their target.
By Jeff Tyson