Search Results | number system
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'Nightingale' Floors Served as Security Warning System in Ancient Japan
In 17th century Japan, wealthy citizens built homes with "nightingale floors" that squeaked, warning them of intruders. In fact, the floors squeaked louder when the steps got lighter.
What Does a Thermostat Do in a Car?
auto.howstuffworks.com/how-does-the-thermostat-in-a-cars-cooling-system-work.htm
How does the thermostat in a car's cooling system work? I had to test my thermostat today and was amazed as I watched it!
What Kind of Number Am I?
play.howstuffworks.com/quiz/what-kind-of-number-am-i-1
Everything in the universe comes down to numbers. There's a baffling mathematical symmetry to everything no matter how disorganized and chaotic it is. Numbers lie at the center of everything! But what numbers? Take the quiz and see what ones you know!
How to Get a Tax ID Number
money.howstuffworks.com/personal-finance/personal-income-taxes/how-to-get-a-tax-id-number.htm
Applying for a federal tax ID number couldn't be simpler. All you need is a computer, a telephone or access to a post office.
Who Called Me From This Phone Number? Need-to-know Tips
electronics.howstuffworks.com/who-called-me-from-this-phone-number.htm
In the age of the internet and the cell phones, dealing with unknown callers is a fact of life. Sometimes it's an honest mistake, or a case of misplaced information, but all too often an unknown phone number is from a caller you'd rather not talk to.
How a Place Value Chart Reveals a Digit's Position in a Number
science.howstuffworks.com/math-concepts/place-value-chart.htm
The concept of place values is fundamental to mathematics and the number system, particularly when you're dealing with whole numbers and decimal numbers. A place value chart is an essential tool that can help students visualize the position of each digit in a number and understand its actual value within the context of the number.
How Credit Cards Work
money.howstuffworks.com/personal-finance/debt-management/credit-card.htm
Credit cards have an interesting history. Learn how a credit card works, from the numbering system to how you can get rid of that high interest balance.
Is there any rhyme or reason to how U.S. interstate highways are numbered?
science.howstuffworks.com/engineering/civil/question656.htm
Is there any rhyme or reason to how U.S. interstate highways are numbered?
How Numerology Works
science.howstuffworks.com/science-vs-myth/extrasensory-perceptions/numerology.htm
Numerology says everything in the world is dependent upon the mystical properties of numbers. But critics aren't so sure.
How does the Social Security system work?
money.howstuffworks.com/question385.htm
How does the Social Security system (in the U.S.) work? When I pay money into the system, where does my money go and where is my account kept (does some bank have the money in my account)?