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What do the big diamond-shaped signs with red yellow and blue diamonds mean?
people.howstuffworks.com/question327.htm
Many buildings in my area have a big red, yellow and blue diamond-shaped sign with numbers on it. Do you know what this sign means?
What causes laptop batteries to overheat?
computer.howstuffworks.com/dell-battery-fire.htm
Dell and the United States Consumer Product Safety Commission recently announced that 4.1 million laptop batteries could short-circuit under the right conditions, causing an explosion or a fire. Learn how.
How to Use a Times Table (It's Not Magic, It's Memorization)
science.howstuffworks.com/math-concepts/how-to-use-multiplication-table.htm
A multiplication table is an easy-to-use grid of numbers that can help you learn to multiply quickly by using the chart and, eventually, your memory.
Here We Go!: The 'Super Mario Bros.' Quiz
play.howstuffworks.com/quiz/super-mario-bros-quiz
For a child of the '80s or '90s, nothing says nostalgia like those opening notes of the "Super Mario Bros." theme song. Think you know your Koopa Troopas from your Goombas? Test your knowledge of "Super Mario Bros." 1 through 3!
How Hydropower Plants Work
science.howstuffworks.com/environmental/energy/hydropower-plant.htm
Hydropower plants produce about 24 percent of the world's electricity and supply more than 1 billion people with power. Find out how hydropower plants work.
Rummikub Rules You Can Understand
entertainment.howstuffworks.com/leisure/brain-games/rummikub-rules.htm
Rummikub is a game based on the card game rummy, but it's played with tiles. How do you play? We'll tell you how and what the Rummikub rules are.
Can You Pass This Mental Calculation Math Quiz?
play.howstuffworks.com/quiz/can-you-pass-this-mental-calculation-math-quiz
If your cellphone dies at 8% per hour and you have 5% left, will you make it 45 minutes away to your friend's house before your phone dies? These are the everyday decisions that make or break our day, and they usually come down to some mental calculation. Let's see how you do.
The Classic Porsche Quiz: Can You Name Them All?
play.howstuffworks.com/quiz/the-classic-porsche-quiz-can-you-name-them-all
Porsche sure loves numbers! Most of their models only have a number as an identifier: 911 (no, it's not an emergency), 901, 550 and many more. Can you identify them from a single image?
How Do Cat Years Work? It's Not a Linear Ratio
animals.howstuffworks.com/pets/how-do-cat-years-work.htm
You don't need a cat to have wondered, how do cat years work? Unlike dog years, which are often mistakenly described as a simple 7-to-1 scale, cats age more dynamically.
The Aston Martin: From the DB1 to DB7
auto.howstuffworks.com/aston-martin.htm
Aston Martin is the quintessential British carmaker. And some its most beautiful have worn the DB model name.