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What does the filter on a cigarette do?
science.howstuffworks.com/innovation/science-questions/question650.htm
I have been smoking for 50 years and have always wondered why cigarettes have filter tips. I can remember when none of the cigarettes on the market had filters, and now nearly all of them do. Does the filter do anything?
How Serial Ports Work
computer.howstuffworks.com/serial-port.htm
Serial ports have been an important I/O tool for decades. Learn how they work!
What is the churning sound I hear from my hard drive whenever it is retrieving data?
computer.howstuffworks.com/question243.htm
What is the churning sound I hear from my hard drive whenever it is retrieving data?
What is all the flickering when I try to record a television set picture with a video camera?
electronics.howstuffworks.com/question336.htm
What is all the flickering when I try to record a television set picture with a video camera?
What is virtual memory?
computer.howstuffworks.com/question684.htm
I keep hearing about "virtual memory" in computers. What is that? How can memory be "virtual"?
Does drinking ice water burn calories?
health.howstuffworks.com/wellness/diet-fitness/weight-loss/question447.htm
When I drink ice water, does my body burn calories warming up the ice?
What are homogenization and pasteurization?
recipes.howstuffworks.com/question147.htm
When I buy milk at the store, the label says "homogenized pasteurized milk." What are homogenization and pasteurization?
20 New Uses for Shampoo
home.howstuffworks.com/green-living/20-uses-for-shampoo.htm
I've been thinking about extra shampoo ever since I sent a box of random bars of hotel soap and shampoo bottles to Clean the World, a smart and admirable non-profit that sends unused soap and shampoo to people at risk of acute infection and disease due to lack of soap.
Why is there a bulge in the exhaust pipe of my dirt bike?
auto.howstuffworks.com/question636.htm
I have a dirt bike, and the exhaust pipe has this big bulge in it near the engine. What is the bulge for?
Can nasal sprays be addictive?
health.howstuffworks.com/mental-health/question546.htm
I can't live without my decongestant spray! How can nasal decongestant sprays be addictive?