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Psoriasis Overview
health.howstuffworks.com/skin-care/problems/medical/psoriasis.htm
Psoriasis can be a painful skin problem. Learn more about how psoriasis works at HowStuffWorks.
Is Styrofoam Recyclable?
science.howstuffworks.com/environmental/green-science/polystyrene-recycling.htm
Polystyrene -- the plastic used in items ranging from plastic forks to take-out boxes to life rafts -- can be recycled, but not without costs. What does it take to recycle polystyrene?
How to Plan a Masquerade Ball
lifestyle.howstuffworks.com/event-planning/how-to-plan-masquerade-ball.htm
If you're looking to have a party with a unique spin, host a masquerade ball. Get tips and learn how to plan a masquerade ball.
The Basic Astronomy quiz
play.howstuffworks.com/quiz/the-basic-astronomy-quiz
The night sky has fascinated humans throughout history. Even if you're not a science buff in general, we're willing to bet you know a thing or two about astronomy yourself. Find out just how much with our quiz!
Gemstone Identification Quiz
play.howstuffworks.com/quiz/gemstone-identification-quiz
Gemstones can tell us so much about ourselves. But what will your knowledge of them say about you? Test it right here, with this quiz.
1959 Harley-Davidson Police Special
auto.howstuffworks.com/1959-harley-davidson-police-special.htm
The 1959 Harley-Davidson Police Special was equipped with a siren and a fire extinguisher. See pictures and learn about this Harley-Davidson bike.
How Stereolithography Works: A 3D Printing Process
computer.howstuffworks.com/stereolith.htm
Stereolithography -- also known as 3D printing -- is an amazing technology that allows you to build 3D plastic prototypes almost as easily as you print something on a sheet of paper!
How do ducks float?
animals.howstuffworks.com/birds/duck-float.htm
To understand why ducks float, you have to know a little about buoyancy, but that's not the sole principle at work. Learn why else ducks float.
How to Get Butter Out of Clothes and Other Materials
home.howstuffworks.com/how-to-remove-butter-stains.htm
Butter stains can be the result of not knowing which side your bread is buttered on until your sleeve is in it. Erasing those greasy stains sometimes poses problems. Learn how to clean butter stains.
9 Types of Angels
people.howstuffworks.com/9-types-of-angels.htm
There are many types of angels that make up the spiritual world. Angels are divided into nine different types within three main groups, which are then called choirs. Find out more about these angelic intermediaries for God.