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Fallout: What Would Happen if the Hoover Dam Broke?
science.howstuffworks.com/engineering/structural/hoover-dam-broke.htm
The Hoover Dam holds back 10 trillion gallons of water. That's enough to cover the entire state of Connecticut. How much damage would be done if the dam broke?
Is there a way to compare a human being to an engine in terms of efficiency
auto.howstuffworks.com/question527.htm
Is there a way to compare a human being to an engine in terms of efficiency? For example, can you calculate the equivalent "miles per gallon" (kilometers per liter) rating for a person riding a bicycle?
How to Build a Wood-Burning Stove
home.howstuffworks.com/home-improvement/heating-and-cooling/how-to-build-wood-burning-stove.htm
You can build a wood-burning stove out of a 55-gallon (208.2-liter) steel barrel plus some odds and ends. Learn how to build a wood-burning stove in this article.
How Gasoline Works
science.howstuffworks.com/gasoline.htm
Without gasoline, the world as we know it would grind to a screeching halt. The U.S. alone consumes well over a hundred billion gallons of gasoline per year. Learn all about this vital fuel.
10 Stand-up Facts About Waterless Urinals
home.howstuffworks.com/10-facts-about-waterless-urinals.htm
Waterless urinals still haven't quite broken through to the mainstream, but they can save users billions of gallons of water over standard models. Read on to find out how they work, and stay safe and sanitary.
How Low-flow Toilets Flush Your Waste Without Wasting Water
home.howstuffworks.com/low-flow-toilet.htm
Low-flow toilets have improved significantly since they first came onto the market in the 1990s. Not only can they save tons of water, they also now can flush your waste with as little as a gallon of water.
How Much Fuel Does an International Plane Use for a Trip?
science.howstuffworks.com/transport/flight/modern/question192.htm
Although the amount of fuel may seem high, when you do the math, it's actually not so bad.
10 Surprisingly Fuel-efficient Sports Cars
auto.howstuffworks.com/fuel-efficiency/fuel-saving-devices/10-fuel-efficient-sports-cars.htm
How much do you know about fuel efficient cars? Keep reading to discover 10 Surprisingly Fuel Efficient Sports Cars.
Why Is 9/10 Added to Gas Prices?
auto.howstuffworks.com/fuel-efficiency/fuel-consumption/why-is-9-10-added-to-gas-prices.htm
The practice of tacking 9/10 of a cent on the end of a gas price goes back to a decades-old tax imposed by state and federal governments. It was supposed to expire but never did.
What's the deal with low-flow and dual-flush toilets?
What's the deal with low-flow and dual-flush toilets? Find out about low-flow and dual-flush toilets in this article.