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How Often to Change Your Furnace Filter
home.howstuffworks.com/home-improvement/heating-and-cooling/air-filters-clean.htm
If my home's air filters are clean when I change them, are they really working? Find out the answer to this and learn more about air filters.
How Automatic Solar Panel Cleaning Systems Work
science.howstuffworks.com/environmental/green-tech/sustainable/solar-panel-cleaning-system.htm
Automatic solar panel cleaning makes solar panels far more efficient. Visit HowStuffWorks to learn all about automatic solar panel cleaning.
What is the world's cheapest alternative fuel car?
auto.howstuffworks.com/fuel-efficiency/hybrid-technology/cheapest-alternative-fuel-car.htm
The world's cheapest alternative fuel car is currently the Tara Tiny. Read about the world's cheapest alternative fuel car in this article.
How Project C.U.R.E. Works
money.howstuffworks.com/economics/volunteer/organizations/project-cure.htm
Project C.U.R.E donates medical supplies to developing countries. Learn Project C.U.R.E works and how you can get involved.
5 Ways Petroleum Jelly Will Improve Your Skin
health.howstuffworks.com/skin-care/beauty/skin-treatments/5-ways-petroleum-jelly-improve-skin.htm
Petroleum jelly on skin is one beauty secret that can help improve skin in several ways. See the different uses for petroleum jelly on skin.
How Hitch Covers Work
auto.howstuffworks.com/auto-parts/towing/equipment/hitches/hitch-covers.htm
There are many types of hitch covers. Learn all about hitch covers at HowStuffWorks.
Can my body generate power after I die?
science.howstuffworks.com/environmental/green-science/body-generate-power.htm
A human body can generate power after death with microbial fuel cell technology. Learn how a body can generate power after death.
5 Failed McDonald's Menu Items
money.howstuffworks.com/5-failed-mcdonalds-menu-items.htm
These 5 failed McDonald's menu items are nasty concoctions that were bad ideas. See 5 failed McDonald's menu items.
Personal Hygiene Pictures
health.howstuffworks.com/skin-care/daily/tips/personal-hygiene-pictures.htm
Personal hygiene pictures explore how your daily routine affects your health. Check out these personal hygiene pictures.
Could blood be used to power batteries?
electronics.howstuffworks.com/everyday-tech/blood-battery.htm
Blood batteries as thin as a sheet of paper are currently under development by scientists at Rensselaer Polytechnic Institute. Read about blood batteries.