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Hummingbirds: What to Feed Them and a Springtime Q&A
animals.howstuffworks.com/birds/hummingbirds-feed-springtime-qa.htm
Hummingbirds are one of nature's marvels. HowStuffWorks takes a look at these amazing birds.
What Is a Quartz Watch?
electronics.howstuffworks.com/gadgets/clocks-watches/quartz-watch.htm
Quartz watches actually use quartz crystals to keep time. How can they be so accurate? Find out why quartz makes such a great time keeper.
Has the free enterprise system prevailed?
money.howstuffworks.com/free-enterprise-system.htm
The free enterprise system offers unfettered industry powered by profit-focused individuals. Learn about the free enterprise system in this article.
What Is Pi?
science.howstuffworks.com/math-concepts/pi.htm
Whether the circle is as big as planet Mars or as small as a tennis ball, the ratio of its circumference divided by its diameter will always equal pi (3.14). But why?
Could Salter's Duck have solved the oil crisis?
science.howstuffworks.com/environmental/green-science/salters-duck.htm
Salter's Duck was a 1970s wave energy invention that lost grant money and fell by the wayside. Find out more about Salter's Duck's energy potential.
How Atomic Clocks Work
science.howstuffworks.com/atomic-clock.htm
When the power goes out and is later restored, how do you know what time to set your clocks to? Have you ever wondered how time is regulated? Learn how scientists determine exact time.
How the Gyroscope Works
science.howstuffworks.com/gyroscope.htm
Did you know that airplanes and space shuttles use the utterly low-tech gyroscope for navigation? Discover the secret behind gyroscopic motion!
Are expensive watches better than cheap watches?
electronics.howstuffworks.com/gadgets/clocks-watches/expensive-watches-better-than-cheap-watches.htm
Are expensive watches really better than cheap watches? Do they tell time better? Find out if expensive watches are better than cheap watches.
What is elimination communication?
lifestyle.howstuffworks.com/family/parenting/babies/elimination-communication.htm
Elimination communication is the idea of potty training an infant almost from birth. Learn about elimination communication and infant potty training.
Top 5 Ways Nature Has Inspired Technology
science.howstuffworks.com/environmental/green-tech/sustainable/5-ways-nature-inspired-technology.htm
Some of the newest ideas in technology come from very old ideas -- they're inspired by nature. How do the plants and animals around us give engineers ideas?