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How Idle-stop Systems Work
auto.howstuffworks.com/fuel-efficiency/hybrid-technology/idle-stop-system.htm
Idle-stop systems alleviate the fuel economy problems of sitting in traffic. Learn how idle-stop systems work and how common they are on new cars.
What Is a Green Roof?
science.howstuffworks.com/environmental/green-science/green-rooftop.htm
A green roof is a roof that is covered in plants, which reduces stormwater run-off and lowers cooling costs. Find out how a green roof can help the environment.
Can New York City's Skyscrapers Accommodate Vertical Farming?
science.howstuffworks.com/environmental/conservation/issues/vertical-farming.htm
Vertical farming is a method of large-scale farming in an urban environment. Learn about the benefits of a vertical farm and vertical farming technology.
How much water should I give my pet during a car trip?
animals.howstuffworks.com/pets/pet-travel/water-pet-car-trip.htm
Giving water to your pet during a car trip can be tricky -- you don't want an accident on the seat. Get tips for giving water to your pet during a car trip.
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?
What Is Gravity?
science.howstuffworks.com/environmental/earth/geophysics/question232.htm
Gravity is the force that causes two particles to pull towards each other. Learn about gravity and find out how Newton and Einstein explain gravity.
The Top 30 Songs of Elvis Presley
entertainment.howstuffworks.com/the-top-30-songs-of-elvis-presley.htm
Elvis Presley is rightly known as "The King of Rock 'n' Roll." But what were his top 30 songs? Our list includes "Love Me Tender," "Hound Dog" and "Heartbreak Hotel."
10 Historical Misconceptions
history.howstuffworks.com/history-vs-myth/10-historical-misconceptions.htm
Some untrue historical events have been passed down for so many years that they have become truths. See our list of 10 historical misconceptions.
7 Health Problems for the Modern Age
health.howstuffworks.com/medicine/modern-technology/7-health-problems-for-the-modern-age.htm
While your iPod may bring you hours of enjoyment, it could also cause health problems. Read our list of seven health problems for the modern age.
Can I feel pregnant when my wife is?
health.howstuffworks.com/pregnancy-and-parenting/pregnancy/issues/sympathy-pregnancy.htm
Sympathy pregnancy is the condition where a man feels pregnant while his wife actually is. Learn more about the symptoms for sympathy pregnancy.