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Can You Pass This General STEM Quiz?
play.howstuffworks.com/quiz/can-you-pass-this-general-stem-quiz
For years, educators and legislators have been emphasizing the importance of STEM programs in the United States, often in an effort to ensure that America can keep up with foreign tech giants. Do you think you can beat our tough STEM quiz?
How Siri Works
electronics.howstuffworks.com/gadgets/high-tech-gadgets/siri.htm
Apple's mobile assistant Siri is the source of much comedy -- and frustration -- among users. How did Siri come to be, and how useful is it, really?
Is the cost of fuel cells a major problem?
auto.howstuffworks.com/fuel-efficiency/alternative-fuels/cost-of-fuel-cells-a-major-problem.htm
Is the cost of fuel cells a major problem? Visit HowStuffWorks.com to learn more about if the cost of fuel cells are becoming a major problem.
What is emphysema?
health.howstuffworks.com/diseases-conditions/respiratory/what-is-emphysema.htm
Emphysema is a disease in which air becomes trapped in the lungs, making it difficult to breathe out. Learn more about emphysema in this article.
What's Your Hairstyle IQ?
play.howstuffworks.com/quiz/whats-your-hairstyle-iq
Bouffants, beehives and everything in between! If you think you know the hairdos of the decades, take our hairstyle IQ quiz. But, consider yourself warned: Some of these questions are so tough, you'll be pulling your hair out!
How the Hum Works
science.howstuffworks.com/science-vs-myth/unexplained-phenomena/the-hum.htm
Hummmmmm. Annoyed yet? Imagine if you heard that sound every night no matter what you did. Likened to a diesel engine idling in the distance, the Hum is a sound some people can never get away from. It's even caused suicide. But is it real?
How Virtual Surround Sound Works
electronics.howstuffworks.com/virtual-surround-sound.htm
Virtual surround sound mimics the effect of multi-speaker surround-sound systems. Learn about virtual surround sound and find out how sound is perceived.
Casket vs. Coffin: Comparing the Burial Containers
science.howstuffworks.com/science-vs-myth/afterlife/coffin.htm
Made of plain pine or shaped like a shoe, mourners may inter them, suspend them or set them ablaze. How much do caskets and coffins differ?
Where can you get a pulmonary function test?
health.howstuffworks.com/medicine/tests-treatment/pulmonary-function-test.htm
Where can you get a pulmonary function test? Visit HowStuffWorks to learn where you can get a pulmonary function test from this article.
Paroxysmal Nocturnal Dyspnea
health.howstuffworks.com/diseases-conditions/respiratory/paroxysmal-nocturnal-dyspnea.htm
Paroxysmal nocturnal dyspnea is a sign of heart failure that makes people have trouble breathing while lying down. Learn about paroxysmal nocturnal dyspnea.