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Sperm Banks
health.howstuffworks.com/pregnancy-and-parenting/pregnancy/fertility/sperm-bank.htm
Sperm banks use sperm donors to gather or preserve sperm. Learn how a sperm bank stores sperm and screens donors.
Evening Primrose Oil
health.howstuffworks.com/wellness/natural-medicine/alternative/evening-primrose-oil.htm
Evening primrose oil can be used to treat many ailments and illnesses. Learn about evening primrose oil and other alternative medicines at HowStuffWorks.
How Foster Care Works
people.howstuffworks.com/foster-care.htm
For any number of reasons, parents sometimes can't take care of their children, either temporarily or permanently. What happens then? Learn all about foster care.
How Blimps Work
science.howstuffworks.com/transport/flight/modern/blimp.htm
Blimps combine the simple buoyancy of a hot air balloon with the technology of an airplane. Learn all about these lighter-than-air vehicles.
Top 5 Unexpected Travel Costs
money.howstuffworks.com/personal-finance/budgeting/5-unexpected-travel-costs.htm
Traveling? Expect some unexpected travel costs. Learn 5 unexpected travel costs you can encounter by HowStuffWorks.com.
How Your Brain Works
science.howstuffworks.com/life/inside-the-mind/human-brain/brain.htm
Every animal you can think of -- mammals, birds, reptiles, fish, amphibians -- all have brains. But the human brain is unique. It gives us the power to think, plan, speak and imagine.
How Houseboats Work
home.howstuffworks.com/houseboat.htm
Houseboats aren't the most common place to live, but they're an interesting alternative. Learn about houseboat living, how houseboats float and more.
How Private Investigators Work
money.howstuffworks.com/private-investigator.htm
Thanks to popular culture, many people have a clear mental image of the stereotypical private investigator. Find out whether the stereotypes about private investigators are true.
How Fire Sprinkler Systems Work
home.howstuffworks.com/home-improvement/household-safety/fire-sprinker-system.htm
Did you know that a fire sprinkler system is designed to be triggered by extremely high heat? Learn all about how a fire sprinkler system works.
How much do pharmaceutical test subjects get paid?
money.howstuffworks.com/how-much-do-pharmaceutical-test-subjects-get-paid.htm
There are people who participate in clinical trials for their career. Learn just how much pharmaceutical test subjects get paid at HowStuffWorks.