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How Free Radicals Affect Your Body
science.howstuffworks.com/life/cellular-microscopic/free-radicals.htm
When an electron loses its partner, it creates a free radical. So is that free radical now potentially hazardous to your health?
Chloroplasts Are the Plant Cells That Manufacture Energy
science.howstuffworks.com/life/cellular-microscopic/chloroplasts.htm
Chloroplasts are where some of the most miraculous chemistry on Earth goes down.
What is the gray goo nightmare?
science.howstuffworks.com/gray-goo.htm
Gray goo is a possible scenario if nanomachines get out of hand. See what gray goo is and all about a possible gray goo nightmare.
What causes 'old person' smell?
health.howstuffworks.com/mental-health/human-nature/perception/old-person-smell-causes.htm
"Let's go to grandpa's room and see if it still smells funny," said Tommy.
What If the Ozone Layer Disappeared?
science.howstuffworks.com/science-vs-myth/what-if/what-if-ozone-layer-disappeared.htm
It's a strange thing to think about, but have you ever wondered what would happen if the ozone layer suddenly wasn't there? Here's a hint: Getting a bad sunburn would be the least of your problems.
Why can some medicines be taken as pills, while other medicines have to be injected with a needle?
health.howstuffworks.com/medicine/medication/question686.htm
Medicine administration can be done in pill form, or through injection. Learn about some of the different types of medicine administration methods.
Why does it take my eyes several minutes to adjust to darkness?
health.howstuffworks.com/human-body/systems/eye/eyes-adjust-darkness.htm
At night, your eyes adjust to darkness after several minutes. Do you know why it takes that long? Take a look at how your eyes adjust to darkness.
Why is super glue so strong?
home.howstuffworks.com/why-is-super-glue-strong.htm
Super glue is strong glue that bonds almost instantly. Learn why super glue is so strong in this article.
How Sunglasses Work
science.howstuffworks.com/innovation/everyday-innovations/sunglass.htm
Whether you're hitting the surf or the slopes or just spending a day on the lake, sunglasses are a must-have accessory. Find out if the $10 sunglasses are as good as the high-cost ones.
What causes 'old person' smell?
health.howstuffworks.com/mental-health/human-nature/perception/old-person-smell.htm
We may not know how to describe it very well, but we all recognize 'old person' smell. Learn what causes 'old person' smell at HowStuffWorks.