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How Nuclear Submarines Work
science.howstuffworks.com/nuclear-submarine.htm
Nuclear submarines are powered by nuclear reactors and may carry nuclear weapons. Read about nuclear submarines and how they changed the world's oceans forever.
How the Mafia Works
people.howstuffworks.com/mafia.htm
The Mafia has controlled everything from the street-corner drug trade to labor-union leadership to high-level politicians. How did it start and what's its status now?
Fluid Overload Edema Overview
health.howstuffworks.com/diseases-conditions/cardiovascular/heart/fluid-overload-edema.htm
Edema is a swelling of the feet, ankle and legs caused by fluid overload. Learn more about edema, its causes and its treatments.
How did dinosaurs leave tracks in solid stone?
science.howstuffworks.com/environmental/earth/geology/stone-dinosaur-track.htm
How did dinosaurs leave tracks in solid stone? They walked in soil that became sedimentary rock. Learn how did dinosaurs leave tracks in solid stone?
Are UFOs Real? Close Encounters of the First, Second and Third Kinds
science.howstuffworks.com/space/aliens-ufos/ufo-classification.htm
UFO siting classification Classification has six categories: nocturnal lights, daylight discs, radar/visual cases, and close encounters. Read more about UFO classification.
Are married people happier than singles?
science.howstuffworks.com/life/inside-the-mind/emotions/married-people-happier-than-singles.htm
Are married people happier than singles? Take a look at our research into whether not married people are happier at HowStuffWorks.
How to Volunteer for Missing Persons
money.howstuffworks.com/economics/volunteer/opportunities/volunteer-for-missing-persons.htm
Do you want to volunteer for missing persons? Learn how to volunteer for missing persons at HowStuffWorks.
How Crosley Cars Work
auto.howstuffworks.com/crosley-cars.htm
Crosley cars -- small, bare-bones, and inexpensive -- were unique to the 1930s car market. Learn about the origins of Crosley cars in this article.
Did climate change create a mysterious civilization 5,000 years ago?
science.howstuffworks.com/environmental/green-science/climate-change-civilization.htm
Climate change can effect civilization, a phenomenon demonstrated by the mound builders of Peru. Learn how climate change can effect civilization.
Why is exercise important for heart health?
Exercise is as important for heart health as eating right and avoiding stress. Learn about aerobic exercise and why it's so important for heart health.