Search Results | number
Your search for "number" returned 8,761 results
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?
How VINs Work
auto.howstuffworks.com/buying-selling/vin.htm
Learn where to find your car's VIN, what the numbers mean, and how you can use VINs to help prevent theft, or learn about the history of a used car.
How Toilets Work
home.howstuffworks.com/toilet.htm
The toilet. The john. The loo. The commode. The porcelain throne. No matter what you call it, there's no doubt it's a true technological marvel. Look beyond the commonplace bowl and see what a sophisticated water-handling system your toilet is.
How Does Herd Immunity Keep a Country Safe From Diseases?
science.howstuffworks.com/life/cellular-microscopic/herd-immunity.htm
Herd immunity relies on the principle of safety in numbers as far as vaccinations go. Find out why herd immunity is an important public health issue.
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.
Why Was 911 Chosen as the Emergency Phone Number?
people.howstuffworks.com/question664.htm
During an emergency, Americans know to dial 911 for help. How and why was that number selected as the emergency phone number for the entire country?
Plastic Numbers: Breaking Down Recycling Codes
science.howstuffworks.com/environmental/green-tech/sustainable/question217.htm
There are seven different numbers you might see on a plastic container. And each number has its own meaning.
666 Meaning: Angel Number or the Devil's Digits?
history.howstuffworks.com/history-vs-myth/666.htm
The numbers 666 are a favorite of horror movies dealing with the occult. But where did they come from, and what or whom do they really refer to?
How do you estimate the number of screws in drywall?
home.howstuffworks.com/home-improvement/home-diy/projects/estimate-screws-in-drywall.htm
You need around one screw for every square foot of drywall, so the total number of screws depends on how much area you want to cover and how closely the wood studs are spaced. Find out how to estimate the number of screws in drywall in this article.
How do they figure out the number of calories in a recipe?
recipes.howstuffworks.com/tools-and-techniques/recipe-calories.htm
Is determining it as simple as adding up the calories in the ingredients and dividing them by the number of servings? Or does the cooking (or even the digestive process) change the final calorie count?