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Electric Boats Make Emission-free Sea Travel a Reality
science.howstuffworks.com/transport/engines-equipment/electric-boats.htm
Electric-propelled boats, which are much quieter and more environmentally friendly than gas-powered motorboats, are finally beginning to hit the waves and find their market.
How Digital Jewelry Will Work
electronics.howstuffworks.com/gadgets/home/digital-jewelry.htm
In the next wave of mobile computing devices, our jewelry might double as our cell phones, PDAs and GPS receivers. Get a look at these new microdevices.
How Ultrasound Works
science.howstuffworks.com/ultrasound.htm
Ultrasound lets us peek into the human body to see everything from heart valves to a moving baby. But how do sound waves give us a picture?
Could Salter's Duck have solved the oil crisis?
science.howstuffworks.com/environmental/green-science/salters-duck.htm
Salter's Duck was a 1970s wave energy invention that lost grant money and fell by the wayside. Find out more about Salter's Duck's energy potential.
How Spotify Works
electronics.howstuffworks.com/gadgets/audio-music/spotify.htm
Spotify, the Swedish music streaming service that's been hot in Europe for years, is now making waves in the United States. See what Spotify is all about.
10 Whistleblowers and the Horrors They Exposed
people.howstuffworks.com/10-whistleblowers-and-the-horrors-they-exposed.htm
When people leak knowledge of illicit or immoral activities, they're thrust onto the world stage. Here are 10 whistleblowers who made big waves.
Your Thoughts Could Activate a Tiny Robot Inside Your Own Brain
science.howstuffworks.com/your-thoughts-could-activate-a-tiny-robot-your-own-brain.htm
For the first time, Israeli researchers have developed a system that lets a human use brain waves to control nanobots in a cockroach. How could that help your health?
Why Are Steel Studs More Common Than Wood?
home.howstuffworks.com/home-improvement/construction/materials/steel-studs-more-common-than-wood.htm
Although they've traditionally dominated the commercial building sector, metal studs -- or frames -- are making waves in residential building. What's the difference between them and their wooden counterparts?
'Baby Shark' and Other Kiddie Tunes That Hit the Billboard Charts
entertainment.howstuffworks.com/baby-shark-kiddie-tunes-to-hit-billboard-charts.htm
Thanks to its viral YouTube video, 'Baby Shark' is making waves on the music charts. HowStuffWorks looks at other kiddie songs chart-toppers.
How Mufflers Work
auto.howstuffworks.com/muffler.htm
Mufflers cancel out most of an engine's noise. Find out how mufflers cancel sound waves, why engines are so loud, and look inside a muffler to learn about backpressure.