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Coronary Heart Disease 101
Coronary heart disease is the most common form of cardiovascular disease, the leading cause of death. Find out how coronary heart disease works.
Why do cats have whiskers?
animals.howstuffworks.com/pets/question592.htm
Why do cats have whiskers? What are they for? Learn why at HowStuffWorks.
What type of circular saw blade do you need to cut metal?
home.howstuffworks.com/what-type-of-circular-saw-blade-do-i-need-to-cut-metal.htm
Use a carbide-tipped abrasive cutoff wheel circular saw blade for cutting metals. Learn what type of circular saw blade you need to cut metal in this article.
24-hour pH, or Stomach Acid, Monitoring
health.howstuffworks.com/medicine/tests-treatment/24-hour-ph-or-stomach-acid-monitoring.htm
The 24-hour pH is a test that helps your doctor determine the factors related to your reflux. Learn more about 24-hour pH from Discovery Health.
How Green are Automotive Lithium-Ion Batteries?
auto.howstuffworks.com/fuel-efficiency/vehicles/how-green-are-automotive-lithium-ion-batteries.htm
Fossil fuels (like gasoline and diesel) are running out and getting a bad rap for nasty tailpipe emissions -- and rightly so. Learn more about how green are automotive lithium-ion batteries.
Future Phones: What do you think phones will look like in 2050?
electronics.howstuffworks.com/phones-in-2050.htm
What do you think phones will look like in 2050? How will phones change in the years to come? Add your comment here on what phones will look like in 2050.
Carbon Monoxide: The Senseless Killer
health.howstuffworks.com/wellness/preventive-care/carbon-monoxide-killer.htm
Carbon monoxide has been called 'the senseless killer' because it is a colorless, odorless, and tasteless gas. Learn more about carbon monoxide from Discovery Health.
History of Tattooing
people.howstuffworks.com/culture-traditions/body-art/history-of-tattooing.htm
Ever wonder about the history of tattooing? Explore tattoos in history.
The Ultimate Witches Quiz
play.howstuffworks.com/quiz/witch-quiz
Grab your broomsticks and black cats because it's time for the Ultimate Witches Quiz! Find out the hocus pocus behind the Salem witch trials, witches today and other magical facts.
Are solar car battery chargers effective?
Imagine waking up one morning to find yourself unable to get to work due to a dead car battery. You won't have to do that if you have a solar car battery charger -- but how well do they really work?