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Your search for "tunnels" returned 128 results
Can We Get Into Space Without Big Rockets?
science.howstuffworks.com/can-get-into-space-without-big-rocket.htm
Visionaries have proposed various ways to get into space without using large rockets for propulsion, such as building a space elevator or harnessing magnetic levitation.
What is a funicular railway?
science.howstuffworks.com/engineering/civil/question512.htm
In the news about the recent accident at a ski resort in Austria, the reporters called the cable car that carried the skiers up the mountain a "funicular railway." What is that and how does it work?
10 Strange Structural Engineering Marvels
science.howstuffworks.com/engineering/structural/10-strange-structural-engineering-marvels.htm
Some architects and engineers go big. Others get fancy. And yet others aim squarely for the completely bizarre. These imagination-bending, gravity-defying products may induce more than a few OMGs.
What is going on during a near-death experience?
science.howstuffworks.com/science-vs-myth/afterlife/during-near-death-experience.htm
Near-death experiences have been researched and discussed for some time. Find out what happens during a near-death experience at Discovery Health.
How Near-death Experiences Work
science.howstuffworks.com/science-vs-myth/extrasensory-perceptions/near-death-experience.htm
Near-death experiences (NDEs) are seemingly supernatural events that some people have when they're at the brink of death. Find out who typically has them and how people have tried to explain them.
Meet the World's Longest Sea-Crossing Bridge
science.howstuffworks.com/engineering/structural/meet-worlds-longest-sea-crossing-bridge.htm
The Hong Kong-Zhuhai-Macao Bridge is 34 miles (55 kilometers) long and connects the territories of Hong Kong and Macao to mainland China for the first time.
How Time Travel Works
science.howstuffworks.com/science-vs-myth/everyday-myths/time-travel.htm
Time travel is a concept that has existed in science-fiction for hundreds of years. Learn about time travel and find out how time travel will work.
How England Broke off From Mainland Europe 450,000 Years Ago
What geological forces separated England from Europe? Learn more about a new study in this HowStuffWorks article.
'Pilot's Glory': Why a Rainbow Encircles an Airplane Shadow on Clouds
Very specific atmospheric conditions and just the right perspective are necessary to see the phenomenon.
Top 10 Ghost Tours
science.howstuffworks.com/science-vs-myth/afterlife/top-5-ghost-tours.htm
Ghost tours give tourists the opportunity to brush shoulders with spirits, or at the least, hear a few good ghost stories. Learn about ghost tours.