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Emergency Vehicles: Can You Identify More Than 30?
play.howstuffworks.com/quiz/emergency-vehicles-can-you-identify-more-than-30
We all know about fire trucks, police cars and ambulances, but what about the other emergency vehicles? Put your wits to the test and see if you can name more than 30 of these emergency vehicles.
How Revolvers Work
science.howstuffworks.com/revolver.htm
The revolver turned shooting a round into a one-step process, forever changing the face of crime, law enforcement and self-defense. Find out what goes on inside a revolver.
How the First-Down Line Works
entertainment.howstuffworks.com/first-down-line.htm
The virtual first-down line that you see in many televised football games is something of a computer-generated miracle. Find out how this line gets 'painted on the field.
If I Plant Trees in My Yard, Will It Offset Global Warming?
home.howstuffworks.com/gardening/garden-design/global-warming-plant-trees.htm
If you plant trees in your yard, will it really help the planet? Find out how much carbon dioxide a tree absorbs and why you should plant trees.
Does where you live determine how often you call in sick?
money.howstuffworks.com/call-in-sick.htm
Calling in sick is something some are more loath to do than others. Does geographic location affect who's calling in sick and who's toughing it out?
How can a rabbit tell me if I'm pregnant?
health.howstuffworks.com/pregnancy-and-parenting/pregnancy/conception/rabbit-pregnancy.htm
A rabbit pregnancy test involved injecting the animal with human urine and analyzing hormonal response. Learn how the rabbit pregnancy test works.
Are Komodo dragons' mouths deadlier than cobras' venom?
animals.howstuffworks.com/animal-facts/komodo-bite.htm
Are Komodo dragons' mouths deadlier than cobras' venom? Learn about the deadly venom and bacteria that is released in a Komodo dragon's bite.
How do trees affect the weather?
science.howstuffworks.com/nature/climate-weather/storms/trees-affect-weather.htm
How do trees affect the weather? Learn how trees can influence not only the five-day forecast, but global climate patterns and global warming.
How do leopards kill animals larger than they are?
animals.howstuffworks.com/mammals/leopard-prey.htm
Leopards kill animals with their powerful jaws and claws. Learn how leopards kill animals three times their size and how they handle scavengers.
Pet-Friendly Hotels Guide
animals.howstuffworks.com/pets/pet-travel/pet-friendly-hotels.htm
Pet-friendly hotels are hard to come by, but are usually worth the search. Learn all about pet-friendly hotels at Animal Planet.