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How Exhaust Heat Recovery and Recirculation Works
auto.howstuffworks.com/fuel-efficiency/hybrid-technology/exhaust-heat-recovery-recirculation.htm
Exhaust heat recovery and recirculation technologies are made to maximize the efficiency of a vehicle's exhaust. Read about exhaust heat recovery on HowStuffWorks.
17 'Hypoallergenic' Cats to Keep Your Sneezing at Bay
animals.howstuffworks.com/pets/hypoallergenic-cats.htm
Do you love cats, dream about having cats, but know that these adorable felines often trigger your allergies?
How Does a Silencer Work?
science.howstuffworks.com/question112.htm
How in the world can a gun silencer work? How can you possibly take an explosive noise that can damage your hearing and turn it into a little "ffft" sound?
Ways to Avoid the Flu
health.howstuffworks.com/diseases-conditions/cold-flu/ten-ways-to-avoid-the-flu.htm
These 10 ways to avoid the flu will help you arm yourself with tips about flu prevention. Get information about prevention from Discovery Health.
What Does a Catalytic Converter Do and Why Do People Steal Them?
auto.howstuffworks.com/catalytic-converter.htm
Catalytic converters are one of the most important parts of a car's emissions control system. Learn about catalytic converters and catalytic converter laws.
Green Living Pictures
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Green living encompasses your dining choices as well as your driving choices. Learn all about living green in these green living pictures.
How to Unwind: 5 Wacky Ways to Relax
health.howstuffworks.com/wellness/stress-management/national-relaxation-day-pictures.htm
Do you have a hard time relaxing? We'll teach you how to unwind! Try these five wacky ways to relax on this National Relaxation Day.
5 Water Exercises for Seniors
health.howstuffworks.com/wellness/aging/senior-health-lifestyle/5-water-exercises-for-seniors.htm
Water exercises for seniors can be effective along with low-impact. Visit HowStuffWorks for five water exercises for seniors to get started.
To Block... or Not to Block Crawlspace Vents during the Winter?
home.howstuffworks.com/green-living/block-crawl-space.htm
During the winter months, your crawlspace can be a source of cold floors and lost heat, but blocking your vents may not always be the best way to compensate for this. Learn more about blocking crawlspace vents during the winter.
Is diesel fuel better for the environment?
auto.howstuffworks.com/fuel-efficiency/fuel-consumption/diesel-fuel-better-environment.htm
Many countries are using more diesel fuel for a variety of reasons. Learn whether diesel fuel is good for the environment from this article.