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Your search for "century" returned 4,724 results
Has Earth reached its carrying capacity?
science.howstuffworks.com/environmental/green-science/earth-carrying-capacity.htm
Carrying capacity is the idea that sustainability requires balance. Learn about carrying capacity and human population.
Did Betsy Ross Really Make the First American Flag?
history.howstuffworks.com/history-vs-myth/betsy-ross-flag.htm
Did Betsy Ross really make the first American flag? Learn the myths and facts about Betsy Ross and the first American flag.
How can I unlock my front door when I'm out of town?
electronics.howstuffworks.com/gadgets/home/unlock-front-door-remotely.htm
You can now unlock your front door remotely via the Internet or a cell phone. Explore the technology that allows you to unlock your front door remotely.
How the Ford Fusion Hybrid Works
auto.howstuffworks.com/fuel-efficiency/hybrid-technology/ford-fusion-hybrid.htm
The Ford Fusion Hybrid is one of the most popular hybrids available. Learn all about the Ford Fusion Hybrid at HowStuffWorks.
How to Volunteer in Historical Reenactments
money.howstuffworks.com/economics/volunteer/opportunities/volunteer-historical-reenactments.htm
Volunteering in historical reenactments is a big commitment. Learn what's involved if you want to volunteer in historical reenactments.
5 Variations on Meatloaf
recipes.howstuffworks.com/5-variations-on-meatloaf.htm
Variations on meatloaf are a great way to mix up your dinner. Check out our top 5 variations on meatloaf and spice up your life.
Rev Up: The Diesel Engine Quiz
play.howstuffworks.com/quiz/diesel-quiz
While diesel earned itself a bad reputation for spewing soot in the early days, improvements have made it much cleaner. Test your knowledge of all things diesel with this quiz.
What's a shark's "yummy hum"?
animals.howstuffworks.com/fish/sharks/shark-yummy-hum.htm
A yummy hum is a sound that dying fish emit -- it's like a dinner bell to a shark. Read about the theory of the yummy hum and how it beckons sharks.
Lake and River Activities
lifestyle.howstuffworks.com/crafts/seasonal/lake-and-river-activities.htm
Lake and river activities let kids explore local aquatic life. Learn about aquatic plants and animals with these lake and river activities for kids.
14 of the New Deals Alphabet Agencies
money.howstuffworks.com/14-of-the-new-deals-alphabet-agencies.htm
The New Deal's Alphabet Agencies were created during the Great Depression to relieve the economic tensions. Learn about these Alphabet Agencies.