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How Ultrasonic Welding Works
science.howstuffworks.com/ultrasonic-welding.htm
You probably know that high pitched or high frequency sounds can break materials apart. But did you know that high frequency sounds can be used to bond materials together?
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?
How Underground Pet Fences Work
science.howstuffworks.com/innovation/everyday-innovations/pet-fence.htm
Want to keep your dog out of the neighbor's yard but feeling guilty pulling out a leash? You might consider an underground or wireless pet fence. Learn how these fascinating systems work and why this specialized fencing industry is booming.
How Uranium Mining Works
science.howstuffworks.com/uranium-mining.htm
Thanks to our voracious appetite for energy, the element long linked with nuclear weapons is taking on a new role. Where does the hunt begin for uranium?
How Urban Planning Works
science.howstuffworks.com/environmental/green-science/urban-planning.htm
Urban planning works to design a city so that it can be used effectively by its people. Find out more about how urban planning works.
How Urban Sprawl Works
science.howstuffworks.com/environmental/green-science/urban-sprawl.htm
Urban sprawl occurs when people move from cities to the areas around them and develop the land with houses, businesses and roads. Learn about urban sprawl.
How Vampires Work
science.howstuffworks.com/science-vs-myth/strange-creatures/vampire.htm
The vampire legend has been evolving for centuries. The most common image of the vampire was born in Bram Stoker's novel "Dracula" in 1897, but the stories go back further than that. Learn all about the undead.
How Van de Graaff Generators Work
science.howstuffworks.com/transport/engines-equipment/vdg.htm
Van de Graaff generators are famous for producing static electricity. Learn about Van de Graaff generators and find out why Van de Graaff generators were invented.
How Venus Flytraps Work
science.howstuffworks.com/life/botany/venus-flytrap.htm
Plants that eat other creatures? It sounds like a genetic experiment gone awry. But there's actually nothing unnatural about it; carnivorous plants have been around for millions of years.
How Viagra Works
science.howstuffworks.com/viagra.htm
Viagra is one of the best-known drugs of all time. Nearly every adult in America has heard of the drug and can tell you what it does. Find out how this high-profile medication works its magic.