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How Gear Ratios Work
science.howstuffworks.com/transport/engines-equipment/gear-ratio.htm
You see gears in just about anything that has spinning parts - car engines, transmissions, electric toothbrushes... Learn what these gears are doing and get to the bottom of the "gear ratio" concept!
How to Calculate the Percent Error Formula
science.howstuffworks.com/math-concepts/percent-error-formula.htm
We take the mystery out of reporting the percent error correctly and show you how to use it in real life.
How the Census Works
people.howstuffworks.com/census.htm
The U.S. census is a huge project bent on counting every U.S. resident. Find out about the changes for the 2020 census with HowStuffWorks.
How Slot Machines Work
entertainment.howstuffworks.com/slot-machine.htm
Slot machines are a popular form of gambling. Learn about modern slot machines and old mechanical models and find out the odds of winning on slot machines.
How Car Computers Work
auto.howstuffworks.com/under-the-hood/trends-innovations/car-computer.htm
Cars seem to get more complicated with each passing year. Today's cars might have as many as 50 microprocessors on them. Essentially, you're driving around in a giant computer. Learn all about it.
1969 Dodge Super Bee Six Pack
musclecars.howstuffworks.com/classic-muscle-cars/1969-dodge-super-bee-six-pack.htm
The 1969 Dodge Super Bee Six Pack was a muscle car that got noticed. Find out why by looking at these photos and exclusive specifications.
1970 Plymouth Road Runner Superbird
musclecars.howstuffworks.com/classic-muscle-cars/1970-plymouth-road-runner-superbird.htm
The 1970 Plymouth Road Runner Superbird stood out in a fast crowd. Learn about this rare and wild muscle car, plus photos and specifications.
Epidemiologists Are the 'Disease Detectives' Protecting Public Health
health.howstuffworks.com/medicine/healthcare/epidemiologists.htm
Who do you call when there's a new disease outbreak? An epidemiologist. These disease detectives investigate the who, what, why, when and where of epidemics worldwide.
How to Play Slot Machines
entertainment.howstuffworks.com/how-to-play-slot-machines.htm
Slot machines have become the game of choice when it comes to casino gambling. Learn how to play slot machines.
Now You Have Another Reason to Neflix
entertainment.howstuffworks.com/six-days-your-life-back-thanks-netflix.htm
CordCutting.com estimates that watching Netflix will spare viewers from the more than six days' worth of ads they'd encounter on cable annually.