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What was Archimedes' death ray?
history.howstuffworks.com/historical-figures/archimedes-death-ray.htm
Archimedes' death ray is a fabled device that brought death and destruction to Roman ships. Learn about Archimedes' death ray and what it was made of.
10 Types of Microphones
electronics.howstuffworks.com/gadgets/audio-music/question309.htm
Microphones have been around in some form for more than 150 years. Modern mics incorporate fiber optics, microchips, and even lasers to suit a variety of audio needs.
How Radio Scanners Work
electronics.howstuffworks.com/radio-scanner.htm
The air around you is bursting with radio waves -- and you can tap into them with minimal effort. With a simple radio scanner, all sorts of transmissions are within your earshot. Find out how radio scanners let you listen in on everything from police to astronaut transmissions.
Exploring Obsidian Meaning: How This Stone Can Transform Your Life
science.howstuffworks.com/environmental/earth/geology/obsidian-meaning.htm
Obsidian is more than just a beautiful stone. Discover its profound meaning and how it can serve as a powerful tool for healing and protection. Don’t miss out on the chance to learn about its transformative properties.
Can You Ace This 12th Grade Physics Quiz?
play.howstuffworks.com/quiz/can-you-ace-this-12th-grade-physics-quiz
You're gonna have to get PHYSIC-al with this quiz. It's so easy, a high schooler can do it! Actually, some of them can't. Do you think you can get a better score than a 12th-grader?
Can You Pass This Elementary School Spelling Test?
play.howstuffworks.com/quiz/can-you-pass-this-elementary-school-spelling-test
Spelling famously has no relation to IQ ... but even so, we all want what we write to look good. Are you ready to test your skills? We've got the quiz for you!
How Wave Pools Work
science.howstuffworks.com/engineering/structural/wave-pool.htm
When the heat sets in, there's nothing like a day at the water park to cool things down -- water parks and their massive wave pools are a huge weekend attraction. Ever wonder what kind of machinery it takes to produce a wave? Learn exactly how an oce
How Dimmer Switches Work
home.howstuffworks.com/dimmer-switch.htm
A regular light switch takes care of off and on. A dimmer switch handles off, on and everything in between. Find out what this clever switch does with electrical current.
How Baggage Handling Works
science.howstuffworks.com/transport/flight/modern/baggage-handling.htm
Inside an airport, luggage moves through an amazing and intricate system. The baggage handling system plays a crucial role in keeping travelers happy. Learn about these high-speed carts and conveyers.
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.