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How NASCAR Safety Works

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NASCAR safety has improved dramatically since the death of Dale Earnhardt. Learn about NASCAR safety technology and see pictures of NASCAR safety devices.

How Missile Defense Systems Will Work

science.howstuffworks.com/missile-defense.htm

What once was "Star Wars" under Reagan is now National Missile Defense under Bush. Learn more about the technology behind the system.

How Interactive Voice Response (IVR) Works

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IVR, or interactive voice response, is a new technology that many of us use everyday. Learn more about IVR at HowStuffWorks.

How Mobile Broadband Services Work

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Mobile broadband services allow you to stay connected to the internet from portable devices. Learn more about mobile broadband services at HowStuffWorks.

Boeing B-29 Superfortress

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The Boeing B-29 Superfortress was the biggest, most expensive gamble by the United States during World War II, built with incredibly high expectations on a tight deadline. Read about the big advances in aviation technology brought about by the B-29.

What Is a Quartz Watch?

electronics.howstuffworks.com/gadgets/clocks-watches/quartz-watch.htm

Quartz watches actually use quartz crystals to keep time. How can they be so accurate? Find out why quartz makes such a great time keeper.

What is cosmological redshift?

science.howstuffworks.com/cosmological-redshift.htm

Cosmological redshift: sounds like the latest blockbuster coming to a theater near you, doesn't it? In reality, it has to do with how light itself travels -- and understanding how it works is essential to advanced space telescope technology.

The Longest Home Runs Ever Hit

entertainment.howstuffworks.com/the-15-longest-home-runs-ever-hit.htm

Ranking the longest home runs ever hit is trickier than you might expect. Technology simplifies today's measurements, but it was a different story before 2015.

What's the difference between backscatter machines and millimeter wave scanners?

science.howstuffworks.com/backscatter-machines-vs-millimeter-wave-scanners.htm

Nope, these advanced imaging technologies are not the same. So whether you're concerned about privacy, safety or time as you're shuffling through the airport security line, we can tell you how these two types of scanners stack up against each other.

How Diesel Locomotives Work

science.howstuffworks.com/transport/engines-equipment/diesel-locomotive.htm

Diesel locomotives are some of the coolest modes of transport out there. Giant machines like these are just full of technological treats. Explore a hybrid-diesel locomotive - from engine to engineer controls.

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