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Your search for "time travel" returned 802 results
How Nirvana Works
science.howstuffworks.com/science-vs-myth/extrasensory-perceptions/nirvana.htm
The word "nirvana" gets thrown around in conversation all the time, often to describe a state of joy or supreme happiness. Actually, it's more than that -- a whole lot more. Find out what nirvana is.
How Solar Sails Work
science.howstuffworks.com/solar-sail.htm
What is a solar sail? How can you use sunlight to move a spacecraft in outer space? In this article, HowStuffWorks will show you how solar sail technology works, take an in-depth look at the Cosmos-1 mission and find out what solar-sails mean for future space travel.
Mercury Retrograde Explained: Dates, Effects, and How to Cope
science.howstuffworks.com/mercury-retrograde.htm
Mercury Retrograde is coming. Is your life about to turn upside down? Discover the dates you must know & how to avoid total disaster.
What Is Gravity?
science.howstuffworks.com/environmental/earth/geophysics/question232.htm
Gravity is the force that causes two particles to pull towards each other. Learn about gravity and find out how Newton and Einstein explain gravity.
The 10 Heaviest Buildings Ever Moved
science.howstuffworks.com/engineering/structural/heaviest-building-moved.htm
The five heaviest buildings ever moved rank high in the history of structural moving. Learn what those five heaviest buildings are.
What's the Difference Between a Nautical Mile and a Mile?
science.howstuffworks.com/innovation/science-questions/question79.htm
What is a nautical mile, and how does it differ from a normal mile and a kilometer?
What Are Moonmoons?
science.howstuffworks.com/what-are-moonmoons.htm
What are moonmoons? HowStuffWorks looks at the moons of moons.
How Dangerous Is Wildfire Smoke? A Toxicologist Is Raising Red Flags
science.howstuffworks.com/nature/natural-disasters/wildfire-smoke-news.htm
The effects of wildfire smoke are different than those of other types of air pollution. But just how harmful to humans is it?
How Nitrous Oxide Works
science.howstuffworks.com/nitrous-oxide.htm
At the same time scientists discovered that nitrous oxide could numb agonizing pain, they also found it could make you really lightheaded and silly. Yes, huffing parties started in the 1700s.
Does a Parallel Universe Really Exist?
science.howstuffworks.com/science-vs-myth/everyday-myths/parallel-universe.htm
Remember that traffic accident you avoided the other day? In another universe, you died. Or at least you did according to the Many-Worlds theory.