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How the Ice Age Worked
history.howstuffworks.com/historical-events/ice-age.htm
An ice age is a period of cooling, marked by the presence of glaciers and ice sheets. Learn how an ice age works and if we're in an ice age right now.
How Geysers Work
science.howstuffworks.com/environmental/earth/geophysics/geyser.htm
Geysers are explained in this article. Learn about geysers.
How Laser Weapons Work
science.howstuffworks.com/laser-weapon.htm
Laser weapons have been depicted in science fiction for years, but they do exist in real life. Learn more about laser weapons.
How Drought Works
science.howstuffworks.com/nature/natural-disasters/drought.htm
What happens when the rains cease and water levels dry up precipitously? Everything from abundant grasses to apex predators suffers the consequences.
Put Down the Soda! Why Your Favorite Drink is Damaging Your Mouth
recipes.howstuffworks.com/soda-damaging-mouth.htm
Put down that soda! Find out why the fizz in your favorite drink is damaging your mouth in this article.
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.
How Light Sticks Work
science.howstuffworks.com/innovation/everyday-innovations/light-stick.htm
Light sticks produce a mesmerizing neon glow before slowly extinguishing. Learn about light sticks, chemical light sticks and how they work.
What's a beer battery?
science.howstuffworks.com/environmental/energy/beer-battery.htm
A beer battery uses a brewery's waste water to generate electricity. Learn how a beer battery works and about microbial fuel cells.
Are leeches being used in modern medicine?
health.howstuffworks.com/medicine/modern-treatments/leeches-in-modern-medicine.htm
Leeches can be beneficial in today's medical treatments. Learn how leeches are used in modern medical treatments.
Is Glass Recycling in the U.S. Broken?
science.howstuffworks.com/environmental/green-science/glass-recycling.htm
Only 25 percent of glass containers used by U.S. consumers were recycled in 2018, the most recent year for statistics. So, why aren't Americans doing better?