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10 Innovations in Water Purification
science.howstuffworks.com/environmental/green-tech/sustainable/10-innovations-water-purification.htm
As far back as 1500 B.C.E., people were trying to purify water to make it drinkable. And we're still at it. Today inventors use tools as simple as clay and as sophisticated as carbon nanotubes to bring clean water to the world.
10 Creative (But Legal) Tax Deductions
Tax time means it's time to see what you can write off to lower your tax bill. Check out 10 creative (but legal) tax deductions at HowStuffWorks.
10 UAV Jobs of the Future
money.howstuffworks.com/10-uav-jobs-future.htm
Unmanned aerial vehicles (UAV) were originally developed for the military, but there are many civilian uses as well. See 10 UAV jobs to learn more.
10 Times It Has Rained Something Other Than Water
Frogs! Fish! Birds! A surprising number of things have rained down from the sky besides water. But how?
How green is a self-contained composting toilet?
home.howstuffworks.com/green-living/composting-toilet.htm
A composting toilet is a step beyond keeping your home as earth friendly as possible. Learn about composting toilets and how much water they save.
What brought bison back from the brink of extinction?
animals.howstuffworks.com/endangered-species/bison-extinction.htm
Bison extinction seemed imminent during the 1800s, as the market for buffalo hide boomed. Learn how men like Teddy Roosevelt prevented bison extinction.
How does groundwater level affect your development plans?
home.howstuffworks.com/real-estate/buying-home/how-does-ground-water-level-affect-development.htm
Most of the water we drink and use is groundwater coming from rain or snow that has collected in the ground. The groundwater level on your land can impact the type of house, complex or well you're planning to build. We'll show you how.
Paraffin Wax Treatments
health.howstuffworks.com/skin-care/problems/treating/paraffin-wax-treatments.htm
Paraffin wax treatments are quite relaxing. Learn how paraffin wax treatments work at HowStuffWorks.
How much should you save in a college fund?
money.howstuffworks.com/personal-finance/budgeting/how-much-save-college-fund.htm
Saving for a college fund is a great way to put aside money for education. In this article, learn how much should you save in a college fund.
How to Become an Army Intelligence Analyst
science.howstuffworks.com/military/army-careers/how-to-become-army-intelligence-analyst.htm
Want to know how to become an Army intelligence analyst? Visit HowStuffWorks to learn how to become an Army intelligence analyst.