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Your search for "planet" returned 2,372 results
How Old Is Earth and How Did Scientists Figure It Out?
science.howstuffworks.com/how-old-is-earth.htm
In 1953, CalTech geochemist Clair Patterson came up with an estimate for Earth's age that still holds today.
How Stars Work
science.howstuffworks.com/star.htm
When you look up at night and see thousands of stars, have you ever wondered what you are looking at? Learn what stars are and how they live and die!
Inside '21'
entertainment.howstuffworks.com/inside-21.htm
The movie 21 is about math prodigies from MIT who used card counting to win millions in blackjack. Learn more about 21.
How Cave Biology Works
science.howstuffworks.com/life/biology-fields/cave-biology.htm
Cave biology is the study of the animal specimens that live and evolve in caves. Learn about cave biology and cave animals in this article.
How Algae Biodiesel Works
science.howstuffworks.com/environmental/green-science/algae-biodiesel.htm
Many people are interested in algae biodiesel as a green fuel. Learn all about algae biodiesel and how researchers make biodiesel from algae.
Top 5 Richest Internet Entrepreneurs
computer.howstuffworks.com/5-internet-entrepreneurs.htm
Being an Internet entrepreneur requires a good idea, strong business acumen and hard work. See the top 5 richest internet entrepreneurs to learn more.
Binoculars Buying Guide
electronics.howstuffworks.com/gadgets/high-tech-gadgets/binoculars-buying-guide.htm
Buying binoculars can be confusing with so many types on the market. See our binocular buying guide to find out which pair is perfect for you.
The Plant Quiz
play.howstuffworks.com/quiz/the-plant-quiz
Every species and category of plant we can come across is vastly unique from one another, and their function in the world is even more distinctive. Can you ace this quiz on the differences and intricacies within the plant world?
Can You Name at Least 23 of These Disney Animated Movies Released Since 2000?
Can you get in the Groove (the "New Groove," that is) and dominate this Disney data? Stitch together a string of right answers - at least 23 - and prove you're Incredible at remembering these films from the past two decades!
Can You Name All These Cars Named After Animals?
play.howstuffworks.com/quiz/can-you-name-all-these-cars-named-after-animals
This car quiz is wild ... literally! (Charge)r through these questions and see if you're smart as a Fox about cars named after animals. Don't be a Cheetah; stay off of Google! Hit the gas and let's go!