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Your search for "time travel" returned 802 results
How Smokejumpers Work
science.howstuffworks.com/nature/natural-disasters/smokejumpers.htm
Smokejumpers are the men and women who specialize in fighting blazes their ground-bound peers can't reach. So who are they, and what's the "Mutilator"?
What Countries Use the Imperial System?
science.howstuffworks.com/why-us-not-on-metric-system.htm
Most of the world uses the metric system for everyday measurements, but only three countries in the world use the imperial system as their official system of measurement.
What's a walk score?
science.howstuffworks.com/environmental/green-science/walk-score.htm
A walk score is a measure of your neighborhood's walkability. Learn about what a walk score is and find out how the Web site Walk Score rates your walkshed.
10 Longest Rivers in the U.S.: From the Missouri to the Brazos
science.howstuffworks.com/environmental/earth/geophysics/longest-river-in-the-us.htm
We bet you're looking up the longest river in the U.S. to settle a bet: Is it the Missouri River or the Mississippi River? It depends how you measure.
What's the World's Tallest Building?
science.howstuffworks.com/engineering/structural/tallest-building-in-the-world.htm
In the last few decades, there's been a sort of arms race to build ever-taller skyscrapers. Which seven currently rank as the world's tallest buildings?
How Mass Spectrometry Works
science.howstuffworks.com/mass-spectrometry.htm
Mass spectrometry is an aspect of science that could finally put the steroid era of baseball to an end. Learn about mass spectrometry.
10 Plants Lost to History
science.howstuffworks.com/life/botany/10-plants-lost-to-history.htm
Are trees and shrubs as cute as pandas? As awe-inspiring as whales? Maybe not, but many are in danger of going the way of the dodo - just like countless leafy greens before them. Learn about some amazing plants we lost to history.
How Exploding Head Syndrome Works
science.howstuffworks.com/life/inside-the-mind/human-brain/exploding-head-syndrome.htm
You're deep in dreamland when you hear an explosion so loud you wake up. But there's nothing outside or inside your house making the noise. What just happened?
How Bunker Busters Work
science.howstuffworks.com/bunker-buster.htm
Bunker busters penetrate deep into fortified bunkers or underground compounds before exploding. Learn about bunker busters and how they're used in combat.
How Nicotine Works
science.howstuffworks.com/nicotine.htm
Smoking or chewing tobacco makes many people feel good, even mildly euphoric. It's the nicotine that produces the buzz. Find out how nicotine affects the human body and what makes it so addictive.