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Your search for "sea level" returned 730 results
Do you always get a bloody nose with altitude sickness?
health.howstuffworks.com/diseases-conditions/respiratory/bloody-nose-with-altitude-sickness.htm
Visit HowStuffWorks to explore and learn whether you always get a bloody nose with altitude sickness in this article.
15 Types of Boats Making Wakes and Sailing the High Seas
auto.howstuffworks.com/types-of-boats.htm
If you're daydreaming about open water, there's a good chance you've wondered about the types of boats you might see—or own.
How Tire Pressure Gauges Work
auto.howstuffworks.com/pressure-gauge.htm
If you have a car, chances are you also have a tire-pressure gauge. Learn how this pen-sized device measures air pressure and why the little stick inside doesn't just fly right out the back!
The Moffat Tunnel
history.howstuffworks.com/american-history/moffat-tunnel.htm
The Moffat Tunnel is a six-mile tunnel that was built in the mountains of Colorado. Learn more about the Moffat Tunnel.
What does it mean when a barometer is rising or falling?
science.howstuffworks.com/nature/climate-weather/atmospheric/barometer.htm
A barometer is an instrument that is used to predict the weather. Learn about barometers in this article.
What are tide tables?
science.howstuffworks.com/environmental/earth/oceanography/tide-table.htm
Whether you sail, surf, fish or collect shells, having one of these could help you out before you hit the water.
Could reversing global warming start an ice age?
science.howstuffworks.com/environmental/green-science/question780.htm
Reversing global warming is discussed in this article. Learn about reversing global warming.
Can You Name the Landform From a Definition?
play.howstuffworks.com/quiz/can-you-name-the-landform-from-a-definition
From mountains to battures, hoodoos to plains, our planet is covered in landforms of all types. How well do you know them? Start taking this quiz to find out!
Would a balloon filled with vacuum instead of helium float?
science.howstuffworks.com/science-vs-myth/everyday-myths/question194.htm
A helium balloon rises because the helium is lighter than air. So how would a balloon -- made from a very sturdy but very lightweight material -- that had been removed of all air respond?
The Byford Dolphin Accident: How 5 Deep-Sea Divers Met Grisly Deaths
history.howstuffworks.com/historical-events/byford-dolphin-accident.htm
In 1983, the worst-ever diving accident occurred. Five people working on an oil rig experienced explosive decompression, which caused them to die in horrific ways.