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What causes the sound of a heartbeat?
health.howstuffworks.com/human-body/systems/circulatory/sound-of-heartbeat.htm
We're all familiar with the sound of a heartbeat: lub-dub, lub-dub. Learn what causes the sound of a heartbeat and why yours might sound different.
1955 Lancia Florida
auto.howstuffworks.com/1955-lancia-florida.htm
Created in Italy, the 1955 Lancia Florida was a completely new kind of car. See pictures and learn about the Florida's design and lasting impact.
1931-1933 Marmon Sixteen
auto.howstuffworks.com/1931-1933-marmon-sixteen.htm
The 1931-1933 Marmon Sixteens were exciting automobiles that were fast, light, and good at climbing hills. Learn about the 1931-1933 Marmon Sixteen.
Is it better to buy local or organic food?
recipes.howstuffworks.com/local-or-organic.htm
Buying local or organic food is a personal choice that is based on health and environmental reasons. Learn more about the local or organic food debate.
How the BMW H2R Works
auto.howstuffworks.com/bmw-h2r.htm
The BMW H2R is an environmentally friendly hydrogen-powered vehicle. Learn how the BMW H2R utilizes hydrogen instead of gas and see photos of the BMW H2R.
How a Cold Heat Soldering Iron Works
science.howstuffworks.com/cold-heat.htm
Cold Heat soldering irons are lightweight, portable and don't come with the potential for serious injury. Learn more about Cold Heat soldering.
What type of vacuum cleaner works best for pet hair?
health.howstuffworks.com/diseases-conditions/allergies/indoor-allergies/vacuum-for-pet-hair.htm
What type of vacuum cleaner works best for pet hair? Visit Discovery Health to find out what type of vacuum cleaner works best for pet hair.
Are You Handy in the Garage? Take This Auto Shop Tools Quiz.
play.howstuffworks.com/quiz/are-you-handy-in-the-garage-take-this-auto-shop-tools-quiz
Every garage is going to be full of tools from wrecking bars to impact guns to tire gauges to multimeters. Think you know them all well enough to identify each of them? Take the quiz and see!
How do rescue teams search a flooded city?
science.howstuffworks.com/nature/climate-weather/storms/rescue-teams-search-flooded-city.htm
When a hurricane or flash flood strikes a city, it can leave residents stranded in their cars, homes or other buildings waiting for rescue. How do rescue teams know where to go first?
How to Static Time an Engine
auto.howstuffworks.com/how-to-static-time-engine.htm
Does static timing your engine sound a little too intimidating? Read about how to static time an engine at HowStuffWorks.