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How Irrigation Lines Work
home.howstuffworks.com/lawn-garden/professional-landscaping/irrigation-line.htm
Irrigation lines can transport water from point A to point B without you hauling buckets. Learn how irrigation lines can water your greenery easily.
How Line Producers Work
entertainment.howstuffworks.com/line-producer.htm
Line producers are a critical part of the film making process. Learn more about how line producers work at HowStuffWorks.
How Brake Lines Work
auto.howstuffworks.com/auto-parts/brakes/brake-parts/brake-lines.htm
Brake lines are tubes that carry brake fluid between brake components. Learn all about brake lines at HowStuffWorks.
What are the Nazca lines?
science.howstuffworks.com/science-vs-myth/unexplained-phenomena/nazca-lines.htm
Long before crop circles captured the world's imagination, a Peruvian culture called the Nazca went about creating a series of intricate lines -- sometimes in the shapes of animals -- on the desert floor. But how'd they do it -- and why?
Chalk Line
home.howstuffworks.com/chalk-line.htm
A chalk line makes it easy for anyone to draw a long, straight line. Learn how to use this marking device at HowStuffWorks.
What Are Ley Lines?
science.howstuffworks.com/science-vs-myth/unexplained-phenomena/ley-lines.htm
Is the world really connected by an intricate, invisible web of knowledge-expanding energy waves? Sure, it's called the Internet -- and you're channeling it right now! Oh, you were asking about the ley lines? We've got an answer for that too.
Perpendicular Lines Create All the Right Angles in the World
science.howstuffworks.com/math-concepts/perpendicular-lines.htm
If two lines are perpendicular to the same line, they are parallel to each other and will never intersect.
A Look at 'Silver Lining' Sayings (and 'Silver Linings Playbook')
people.howstuffworks.com/silver-lining.htm
Ever hear someone say, "Look on the bright side!" when you're feeling down? They're talking about finding a "silver lining," an expression we use when we want to see the positive aspect of a challenging situation, often included in the longer phrase "Every cloud has it's silver lining."
Why the Massive Maginot Line Failed to Stop Hitler
history.howstuffworks.com/world-war-ii/maginot-line.htm
After WWI, the French built a fortress of bunkers at its borders to stop another German invasion. But the Maginot Line has come to have a second meaning as a bad defense strategy.
How to Make a Number Line for the Classroom
science.howstuffworks.com/math-concepts/number-line.htm
A number line is a pictorial representation of real numbers. It is most commonly used in elementary math classes to help students compare numbers and perform arithmetic operations like addition, subtraction, division and multiplication.