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Furnace Maintenance
home.howstuffworks.com/home-improvement/heating-and-cooling/furnace-maintenance.htm
Furnaces are usually trouble-free and easy to maintain. Efficient operation is a function of good maintenance. Learn how to maintain a furnace.
How Alternative Fuel Pricing Works
auto.howstuffworks.com/fuel-efficiency/fuel-economy/alternative-fuel-pricing.htm
Alternative fuel pricing is different from petroleum-based fuel products. Find out which factors effect alternative fuel pricing in this article.
How Light Bulbs Work
home.howstuffworks.com/light-bulb.htm
The light bulb hasn't changed a whole lot in its 120 years -- the original design was just that good. Apparently, you can throw together a filament, a glass mount, an inert gas and a bit of electricity and change the world. Learn what happens when yo
Is gasoline more dense in the morning?
auto.howstuffworks.com/fuel-efficiency/fuel-economy/gasoline-more-dense-in-morning.htm
Is gasoline more dense in the morning? Should you fill up before the afternoon? Find out at HowStuffWorks.
What are fireplace inserts?
home.howstuffworks.com/home-improvement/construction/materials/fireplace-inserts.htm
Have you ever wondered what fireplace inserts are? Find out what fireplace inserts are at HowStuffWorks,
How Fluorescent Lamps Work
home.howstuffworks.com/fluorescent-lamp.htm
You see fluorescent lighting all over the place -- in offices, homes, stores, dressing rooms. But there's a certain mystery to it. Find out what's going on inside these glowing tubes!
Why do I get gassy when I fly?
health.howstuffworks.com/human-body/systems/digestive/why-gassy-when-fly.htm
Relax. Everyone gets gassy when they fly. Find out why air travel makes you fart at HowStuffWorks.
How did Lake Nyos suddenly kill 1,700 people?
science.howstuffworks.com/environmental/earth/geophysics/lake-nyos.htm
One evening, people heard their local lake rumbling. A day and a half later, 1,700 people were dead. What happened on that fateful night?
How Radon Works
home.howstuffworks.com/home-improvement/household-safety/radon.htm
In places where uranium is common in the soil, radon is a popular topic of discussion. Even though radon is "completely natural," it can be a real health hazard. Learn how radon forms and why it is so dangerous.
How the Ozone Layer Works
science.howstuffworks.com/environmental/green-science/ozone-layer.htm
We hear about the ozone layer all the time. But, what is the ozone layer and what are the ozone layer's components?