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Portland Cement: A Concrete History With Structural Integrity
science.howstuffworks.com/innovation/inventions/portland-cement.htm
Invented in 1824, Portland cement remains prominent in modern construction. Learn about the hydraulic binder's raw materials and applications.
How the Endocrine System Works
health.howstuffworks.com/human-body/systems/endocrine/endocrine-system-ga.htm
The endocrine system comprises a number of glands that produce hormones with a varied array of vital functions. Hormones control or regulate the development or function of structures throughout the body.
Why does humidity make my hair frizz?
science.howstuffworks.com/nature/climate-weather/atmospheric/why-does-humidity-make-hair-frizz.htm
Nothing ruins a good hair day like humidity, especially if your hair is dry and overprocessed. What's the science behind the frizz?
What Kind of Energy Are You?
play.howstuffworks.com/quiz/what-kind-of-energy-are-you
According to physics, you can neither create nor destroy energy; it can just change from one form to another. Why not take this quiz and we'll help you find out what form of energy you'll be changing from one day?
How to Bleach Wooden Furniture
home.howstuffworks.com/home-improvement/home-diy/projects/how-to-bleach-wooden-furniture.htm
Bleaching furniture is essentially a first-aid measure not a routine part of refinishing. Learn the best ways to bleach wooden furniture.
What is exfoliation?
health.howstuffworks.com/skin-care/cleansing/tips/what-is-exfoliation.htm
What is exfoliation? Find out what exfoliation is and why it is important at HowStuffWorks.
How to Mix Perfume Oils
lifestyle.howstuffworks.com/style/body-scents-fragrances/how-to-mix-perfume-oils.htm
Mixing perfume oils at home can give you a one-of-a-kind scent. Learn how to mix perfume oils and surprising perfume ingredients.
Henna Tattoos: The History of an Ancient Art
people.howstuffworks.com/culture-traditions/body-art/henna-tattoo.htm
Henna tattoos seem to be everywhere and all the rage, but the rich tradition behind this beautiful form of body art began as a wedding staple in ancient India.
How to Allergy-Proof Your Home
Keeping an allergen-free house is not an impossibility. Learn more about allergy-proofing your home.
10 Absolutely Worst Foods to Eat
science.howstuffworks.com/science-vs-myth/everyday-myths/10-absolutely-worst-foods-to-eat.htm
We all eat things we probably shouldn't, and that's OK from time to time. But there are some foods that are such nutrition bombs that even occasional indulgence isn't exactly wise.