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Time, Space and Everything in Between: The Astrophysics Quiz
play.howstuffworks.com/quiz/astrophysics-quiz
The field of astrophysics covers some of the biggest questions about the universe. How did it form? What will happen to it? How do solar systems form? What are stars made of? Is time travel possible? Test your smarts on astrophysics with this quiz.
Amber Hagerman: The Abduction That Inspired AMBER Alerts
people.howstuffworks.com/amber-hagerman.htm
By now, it's probably a familiar sound: jarring, ear-splitting tones that sound from your mobile device. Known as an AMBER Alert, these emergency notifications can be pivotal in finding abducted children. Named after Amber Hagerman, the system started in 1996.
How the Hyperloop Works
science.howstuffworks.com/transport/engines-equipment/hyperloop.htm
Ready for a fifth mode of transportation? Elon Musk is. He's sketched out a proposal for a nearly supersonic transportation system that could shoot you from San Francisco to Los Angeles faster than you can watch an episode of "Game of Thrones."
How Power Grids Work
science.howstuffworks.com/environmental/energy/power.htm
Electrical power is a little bit like the air you breathe: You don't really think about it until it is missing. There are good reasons the power grid distribution system works the way it does, though it can lead to some big problems.
How Stinger Missiles Work
science.howstuffworks.com/stinger.htm
The Stinger missile is a deadly man-portable air-defense system (MANPADS) that can be rapidly deployed by ground troops. It's lightweight, combat-proven and has a greater than 90 percent success rate. So how are Stingers used and against whom?
What Did Benjamin Franklin Invent? Much More Than Bifocals
science.howstuffworks.com/innovation/famous-inventors/10-ben-franklin-inventions.htm
Between running a print shop, engineering the U.S. postal system, and helping sow the seeds of the American Revolution, Benjamin Franklin also found time to draw up a vast collection of new devices. What are some of his most enduring inventions?
How Disc Brakes Work
auto.howstuffworks.com/auto-parts/brakes/brake-types/disc-brake.htm
Disc brakes are the most common brakes found on a car's front wheels, and they're often on all four. This is the part of the brake system that does the actual work of stopping the car. Find out all about disc brakes -- even when to replace the pads.
How Clothes Dryers Work
home.howstuffworks.com/dryer.htm
A dryer is actually a very simple device. In this article we'll take apart a clothes dryer and explore how each system works. We'll start by following the air through the machine, then see how the tumbler and fan turn, and finally look at the controls.
How Close Can We Get to the Sun?
science.howstuffworks.com/how-close-can-get-to-sun.htm
Since it launched Aug. 12, 2018, NASA's Parker Solar Probe has made 11 of the 24 planned approaches with the sun, analyzing the massive star's solar wind and magnetic fields. But just how close will it get to our solar system's massive star?
Infectious Diseases 101
health.howstuffworks.com/diseases-conditions/infectious/how-infectious-diseases-work.htm
Infectious diseases are caused by microorganisms, and your body is constantly dealing with them. Learn more about infectious diseases and how to prevent them.