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What is the difference between a hardwood and a softwood?
science.howstuffworks.com/life/genetic/question598.htm
What is the difference between a hardwood and a softwood? How hard does a tree have to be to be considered hardwood?
How Ozone Pollution Works
science.howstuffworks.com/environmental/green-science/ozone-pollution.htm
We want the ozone layer, but we don't want ozone pollution... Good in the atmosphere but bad on the ground? Find out about ozone pollution, how it affects you and what you can do about it.
10 Alternative Fuel Ideas That Never Made It Out of the Lab
auto.howstuffworks.com/fuel-efficiency/alternative-fuels/5-alternative-fuel-ideas.htm
You might be surprised by some of the alternative fuel solutions mentioned in this article. Read about ten somewhat odd alternative fuel solutions.
Inside 'MythBusters'
entertainment.howstuffworks.com/mythbusters.htm
Wondering how MythBusters works and what's the secret to Discovery Channel MythBusters? See how MythBusters works now.
How Tuning Forks Work
science.howstuffworks.com/tuning-fork.htm
Pianos lose their tuning, guitars fall out of key -- even church organs need to be tuned every now and then. For centuries, the only sure-fire way to tell if an instrument was in tune was to use a tuning fork.
How Flavor Tripping Works
people.howstuffworks.com/flavor-tripping.htm
Popping a mysterious berry in your mouth to see what happens is fun, but few know how flavor tripping works. Learn how flavor tripping works here.
10 Bad Alternator Symptoms to Watch, Listen and Smell For
When your car's alternator begins to fail - or has already failed - there are certain warning signs that you can expect to see along the way. But do you know what they are?
Should You Save Your Baby's Umbilical Cord Blood?
health.howstuffworks.com/pregnancy-and-parenting/pregnancy/labor-delivery/umbilical-cord-blood.htm
Umbilical cord blood usually gets thrown away as medical waste, but maybe you should keep it. Umbilical cord blood is an important source of CBE stem cells.
Home Remedies for Osteoarthritis Pain Relief
Osteoarthritis leads to uncomfortable or disabling joint pain, but home remedies for osteoarthritis pain relief can help. Learn more at HowStuffWorks.
How Donating Your Body to Science Works
science.howstuffworks.com/life/biology-fields/donating-body-to-science.htm
There's a great need for people to donate their bodies to science but not many people think about doing it. What happens to your body after you make that decision?