Search Results | coal mining in the united states
Your search for "coal mining in the united states" returned 81 results
What Are Mines?
science.howstuffworks.com/engineering/structural/underground-mining.htm
Underground mining has come a long way from the days of men with pickaxes and canaries. It relies much more heavily on machinery that makes it much safer than in the past. Which techniques are used in mining today?
What happens to abandoned mines?
science.howstuffworks.com/engineering/structural/abandoned-mine.htm
Abandoned mine shafts may look romantic with their clapboarded entrances and rusting pickaxes, but they can be deadly. So who ensures that these dangerous sites are properly closed up? You may find the answer a little unsettling.
How Coal Stoves Work
home.howstuffworks.com/home-improvement/heating-and-cooling/coal-stoves.htm
Coal stoves are very efficient when they are maintained properly. Learn more about how coal stoves work at HowStuffWorks.
How Uranium Mining Works
science.howstuffworks.com/uranium-mining.htm
Thanks to our voracious appetite for energy, the element long linked with nuclear weapons is taking on a new role. Where does the hunt begin for uranium?
How Many State Capitals Do You Know?
play.howstuffworks.com/quiz/how-many-state-capitals-do-you-know
We'd love TOPEKA your interest in geography with this quiz. If you don't pass, don't get MADison about it, just show us what JUNEAU about all 50 states.
Can You Name the States From Smallest to Largest?
play.howstuffworks.com/quiz/can-you-name-the-states-from-smallest-to-largest
For this quiz, size does matter, and you're gonna have to know a thing or two about land plots to even think of passing. We'll be impressed if you can tell us where Delaware lands on this quiz.
Can You Accurately Guess the Population of Every American State?
play.howstuffworks.com/quiz/can-you-accurately-guess-the-population-of-every-american-state
This quiz will bring you to your "census." There are over 7 billion people in the world, but only 329.7 million of them live in the United States. Can you tell us where we might find them?
Can You Guess All 50 States From an Image Of Their Outline?
Did you get an A in your geography class? Do you know the state mottos and famous landmarks that make each state unique? Prove it by challenging yourself with this quiz!
Are Frogs on the Brink of Extinction?
animals.howstuffworks.com/endangered-species/frog-extinction.htm
Frogs are like the canary in the coal mine for the state of the environment. HowstuffWorks looks at their endangered status.
5 Myths About Renewable Energy
science.howstuffworks.com/environmental/green-science/5-myths-renewable-energy.htm
We're currently suspended between two ages: a time dependent on fossil fuels and a future dominated by renewable energy sources. Yet not everyone is sold on this vision, so a number of myths about renewable energy persist.