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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.
Why Does the Universe Depend on Planck's Constant?
science.howstuffworks.com/dictionary/physics-terms/plancks-constant.htm
Planck's constant, which made an appearance in the Netflix series "Stranger Things," is one of the most important differences between reality at the atomic and subatomic level and what we can see around us.
How Hot Is the Sun? Colder, the Closer You Get!
science.howstuffworks.com/why-sun-atmosphere-hotter-than-surface.htm
How hot is the sun, and why does this star's atmosphere hit higher temperatures than its core? Read on to learn about the weird physics.
How do you write the chemical reaction that takes place in a smoke detector?
science.howstuffworks.com/question5.htm
Chemical formulas provide a concise explanation for reactions. In this article, we explain the formula for the reaction in a smoke detector.
How Hot Air Balloons Work
science.howstuffworks.com/transport/flight/modern/hot-air-balloon.htm
Hot air balloons are about as simple as flying can get - no engine, no moving parts really, and very little the pilot can do to control the vehicle. Find out what it's like to fly a hot air balloon!
Could 'Early' Dark Energy Explain the Mystery of the Universe's Expansion?
science.howstuffworks.com/early-dark-energy-news.htm
Early dark energy, a form that may have existed a few hundred thousand years after the big bang, could help clarify the universe's rate of expansion.
How Magna Doodle Works
entertainment.howstuffworks.com/magna-doodle.htm
The Magna Doodle... For kids, it's a cool toy. For the rest of us it's a tribute to the beauty of physics. Discover the science behind Magna Doodle.
How Dark Matter Works
science.howstuffworks.com/dictionary/astronomy-terms/dark-matter.htm
For decades, stargazing scientists have been facing their own darkness on the edge of town as they try to explain one of astronomy's greatest mysteries: dark matter. Have they been successful, or will the universe carry its secrets for a long time?
How Hearing Works
health.howstuffworks.com/mental-health/human-nature/perception/hearing.htm
Hearing is made possible through physical movement, rather than chemical reactions. Learn about hearing and see diagrams explaining the hearing process.
20 Memorable Moments of the 21st Century So Far
history.howstuffworks.com/historical-events/20-memorable-moments-21stcentury.htm
The world has come a long way since we were prepping for Y2K. We've witnessed some major moments since then. HowStuffWorks looks at 20 big ones.