Search Results | u.s. geological survey
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How is volcanic ash made?
science.howstuffworks.com/nature/natural-disasters/volcanic-ash.htm
Volcanic ash is what's left after a volcano literally blows its top. Learn how volcanic ash can devastate everything under its gray blanket.
What Is the World's Shortest River?
science.howstuffworks.com/environmental/earth/oceanography/worlds-shortest-river.htm
Ever wondered what's the difference between a river, a stream, a brook and a tributary?
Is Dowsing Real, or Just a Bunch of Hocus-Pocus?
science.howstuffworks.com/science-vs-myth/unexplained-phenomena/water-dowsing.htm
When it comes to water witches we're faced with two distinct possibilities. One, they're either really good, at pulling a fast one on desperate landowners looking for groundwater. Or, two, they actually know what they're doing.
The Largest Continent Is Also the Most Populated
history.howstuffworks.com/world-history/largest-continent.htm
If you are looking at a traditional world map, you won't get an accurate idea of the size of the seven continents; depicting a sphere onto a flat surface means that something will end up distorted. For that reason, you may not truly understand something like the size of the largest continent.
How to Get Hard Water Stains Out of Your Toilet
Minerals may be good for the body, but they're not so great for the toilet. How can you remove those nasty hard water stains they leave in your toilet bowl anyway?
Could we harvest energy from earthquakes?
science.howstuffworks.com/environmental/energy/harvest-energy-from-earthquake.htm
Fossil fuels, including coal, oil and natural gas, supply the bulk of the world's energy demand. Wind, the sun and nuclear energy are ascending sources of power worldwide. Could we tap into the power from earthquakes?
How Pangaea Became 7 Separate Continents
history.howstuffworks.com/world-history/pangaea-supercontinent.htm
The idea of Pangaea comes from Alfred Wegener's hypothesis that the seven continents were once joined as a supercontinent. Learn more about Pangaea.
What are natural gas hydrates?
science.howstuffworks.com/environmental/energy/natural-gas-hydrates.htm
What are natural gas hydrates? Learn what natural gas hydrates are in this article.
How Earthquake-resistant Buildings Work
science.howstuffworks.com/engineering/structural/earthquake-resistant-buildings.htm
Sometimes it seems as though Earth has been hitting the caffeine a little too hard, with all the shakes from earthquakes. So, how do structures stand strong amid all those quakes?
Earthquakes on the Mississippi: The New Madrid Seismic Zone
Will a town in southern Missouri be the epicenter of the next 'big one'?