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How Espresso Machines Work
home.howstuffworks.com/espresso-machine.htm
Espresso, cappuccino, latte, double latte, double mocha latte... Espresso drinks have become coffee-shop staples all over the world. Watch us take apart an espresso machine!
How Nuclear Medicine Works
science.howstuffworks.com/nuclear-medicine.htm
Nuclear materials get used in many forms of nuclear medicine -- everything from PET scans to chemotherapy uses them. Learn how nuclear medicine works.
Where do butterflies get their striking colors?
animals.howstuffworks.com/insects/butterfly-colors.htm
Butterfly color is some of the most striking in nature. Learn how butterfly wings use ordinary color and structural color.
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.
How is carpet made?
home.howstuffworks.com/home-improvement/home-diy/flooring/how-is-carpet-made.htm
Have you ever wondered how carpet is made? Don't blame yourself if you don't know much about how carpet is made. Instead check out this article.
Does a hush really pass over a crowded room 20 minutes after the hour?
science.howstuffworks.com/science-vs-myth/everyday-myths/hush-crowded-room.htm
You're talking with a group of people when, with no apparent warning, everyone stops talking. Is it just an awkward silence or a pregnant pause? Or is this silence something more?
Why do cougars scream?
animals.howstuffworks.com/mammals/cougar-scream.htm
Cougars scream during mating season to attract the opposite sex. Learn how cougars scream and why humans don't hear these cougar screams too often.
Science Projects for Kids: Crystals and Minerals
Science projects for kids with crystals and minerals are great for junior geologists. Start on a science project for kids with crystals and minerals.
Science Projects for Kids: Current Electricity
Get a charge out of these exciting science projects for kids as you discover the world of ion attraction. Begin with these electrifying activities.
How Blackouts Work
science.howstuffworks.com/environmental/energy/blackout.htm
Blackouts are explained in this article. Learn about blackouts.