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How Smoke Detectors Work
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As the saying goes, "Where there's smoke, there's fire." Smoke detectors are amazing: They're pretty inexpensive, but they save thousands of lives each year. Learn all about nuclear and light-sensing smoke detectors.
How Toilets Work
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The toilet. The john. The loo. The commode. The porcelain throne. No matter what you call it, there's no doubt it's a true technological marvel. Look beyond the commonplace bowl and see what a sophisticated water-handling system your toilet is.
How to Turn Up Hot Water Heater
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You probably don't give your water heater much thought until your shower goes cold but it's an important appliance in your home. If your water heater's temperature is off, you'll want to learn how it works, including how to turn up your hot water heater.
Inside a Bathroom Scale
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A bathroom scale can be found in most homes, but have you ever wondered what was inside? Check out these pictures of the inside of a bathroom scale.
Inside a Combination Lock
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A combination lock is a fairly simple device that provides a high level of security. Take a look at the inside of a combination lock.
Inside an Electric Razor
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Electric razors share a remarkable similarity to electric screwdrivers! Take a look inside an electric razor with this collection of electric razor pictures.
Inside an Electric Screwdriver
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An electric screwdriver is an interesting device that combines a lot of technology into a compact package. Take a look inside an electric screwdriver.
10 Design Flaws in the Average Home
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Just about everyone's home has something that could be improved. And sometimes design choices are to blame. Learn about the 10 most common design flaws in the typical house.
10 Most Expensive Pools
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Famous hotel pools can be impressive, they pale in comparison to some of the world's most expensive pools, which can cost millions or even billions of dollars to build.
10 Most Infamous Stains in History
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Spills are a daily occurrence, but some leave an indelible mark on history. Here are 10 spots that no amount of cleaner can ever wash away from the public record.