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How Airbags Work
auto.howstuffworks.com/car-driving-safety/safety-regulatory-devices/airbag.htm
Do airbags reduce the risk of injury in crashes? Learn about airbags and see the Mythbusters test airbag explosions in a video from Discovery Channel.
Diesel Isn't Always a Worse Polluter Than Gasoline
auto.howstuffworks.com/diesel-isnt-always-worse-polluter-than-gasoline.htm
Whether diesel- or gasoline-powered cars spit out more toxins depends on the pollutant measured, a new study says. HowStuffWorks reports.
Vegetable Garden Soil
home.howstuffworks.com/vegetable-garden-soil.htm
Vegetable garden soil is a mix of clay, silt, sand, organic materials, and porous space. Learn all about vegetable garden soil at HowStuffWorks.
How Much Air Pollution Comes From Cars?
auto.howstuffworks.com/air-pollution-from-cars.htm
You see it every time smoke billows from your car's exhaust pipe. There's no denying that vehicles are major contributors to air pollution.
How Oil Refining Works
science.howstuffworks.com/environmental/energy/oil-refining.htm
Despite the dangers, oil refineries are essential to society in its current form. Learn how crude oil is converted into everything from butane to gasoline.
Are You Smarter Than a 5th Grader: Science Edition!
play.howstuffworks.com/quiz/are-you-smarter-a-5th-grader-science-edition
Do you think you're smarter than a 5th grader when it comes to science? Can you answer these elementary science questions? Let's find out with this quiz!
How do urban waste water systems work?
home.howstuffworks.com/home-improvement/plumbing/urban-waste-water-systems-work.htm
How do urban waste water systems work? Learn how urban waste water treatment facilities work in this article.
How do dry chemical fire extinguishers work?
home.howstuffworks.com/home-improvement/home-diy/question346.htm
How do multi-class dry chemical fire extinguishers work? What is the dry chemical?
Does smog make for beautiful sunsets?
science.howstuffworks.com/environmental/green-science/smog-sunset.htm
Many people think that beautiful, blazing sunsets are one upside to living with the smog that hangs over polluted cities. Are they right? Does smog actually enhance sunsets?
What Is Compost? How to Start Composting at Home
home.howstuffworks.com/composting.htm
Americans generate more than 200 million tons of trash each year. Want to put some of it to work? Try composting. It creates a natural fertilizer and can save valuable space in that landfill.