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What Is a Drone?
science.howstuffworks.com/transport/flight/modern/drones.htm
They're the stuff of headlines, often characterized as evil in the sky. But what are drones and how do they get off the ground and fly?
What Is Resonance?
science.howstuffworks.com/resonance-info.htm
An object free to vibrate tends to do so at a specific rate called the object's natural, or resonant, frequency.
What Is White Noise?
science.howstuffworks.com/what-is-white-noise.htm
What is white noise? There's a little more to it than the ambient noise you associate with a humming air conditioner or whirring fan.
What's Really Going on at the 'Tesla Tower'?
science.howstuffworks.com/engineering/civil/whats-really-going-on-at-tesla-tower.htm
There's a mysterious tower in Texas that strongly resembles Nikola Tesla's Wardenclyffe Tower. Its constructors say they're testing some new forms of electromagnetic waves. But is something else going on?
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 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.
10 Unidentified Sounds That Scientists Are Seriously Looking Into
science.howstuffworks.com/science-vs-myth/unexplained-phenomena/10-unidentified-sounds.htm
"Stop, what's that sound?" Doesn't it creep you out when you don't know? There are lots of sounds out there that baffle even scientists.
10 Failed Google Projects
computer.howstuffworks.com/10-failed-google-projects.htm
Google projects have often been huge successes -- except for these blunders. See 10 failed Google projects to learn more.
How do motion sensing lights and burglar alarms work?
home.howstuffworks.com/home-improvement/household-safety/question238.htm
How can motion-sensing lights detect your presence, and what prevents them from seeing you when you're standing still? It all comes down to the movement of light.
How Laser Weapons Work
science.howstuffworks.com/laser-weapon.htm
Laser weapons have been depicted in science fiction for years, but they do exist in real life. Learn more about laser weapons.