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Has Earth reached its carrying capacity?
science.howstuffworks.com/environmental/green-science/earth-carrying-capacity.htm
Carrying capacity is the idea that sustainability requires balance. Learn about carrying capacity and human population.
Ace of Wands: Igniting Creativity and New Beginnings
science.howstuffworks.com/science-vs-myth/extrasensory-perceptions/ace-of-wands.htm
Unlock the mysteries of the Ace of Wands. Discover how this powerful tarot card ignites creativity, passion, and new beginnings. Are you ready to embrace your potential?
What Are Frankincense and Myrrh?
science.howstuffworks.com/life/botany/question283.htm
The three wise men in the story of Christmas carried gold, frankincense and myrrh. What are frankincense and myrrh? Can you still get them these days?
How Dyson Spheres Work
science.howstuffworks.com/environmental/energy/dyson-sphere.htm
Could the source of Earth's future energy come from an ambitious idea to encircle the sun with technology? Maybe, but it's a concept that's a long way from today's reality.
How Space Farming Works
science.howstuffworks.com/space-farming.htm
Space farming is the process of cultivating plants in space. Learn why space farming is important and how space farming will affect life on Earth
How Revolvers Work
science.howstuffworks.com/revolver.htm
The revolver turned shooting a round into a one-step process, forever changing the face of crime, law enforcement and self-defense. Find out what goes on inside a revolver.
Alien Sightings: Probing the Influx of UFO Reports
science.howstuffworks.com/space/aliens-ufos/where-most-ufos-are.htm
For centuries, people have been reporting sightings of strange objects in the sky - unidentified flying objects (though UAP is the term du jour). These events continue to captivate the world.
London Bridge Has Never Fallen Down, But It Keeps Getting Rebuilt
science.howstuffworks.com/engineering/structural/london-bridge.htm
Despite what the nursery rhyme says, London Bridge is not falling down - and never really has. But the bridge that spans the Thames has been rebuilt again and again for two millennia.
What Is the Arctic Circle? 9 Stone-cold Facts About the Region
science.howstuffworks.com/environmental/earth/geophysics/arctic-circle.htm
The Arctic Circle is a region marked by frigid temperatures, strange sunlight and glaciers galore. And for hundreds of thousands of people, it's also home sweet home.
10 Heaviest Objects Mankind Has Ever Moved
science.howstuffworks.com/engineering/structural/10-heaviest-objects-mankind-moved.htm
It's always been a dilemma for humans: how to move that super-heavy object to a new place. But we always seem to find a way, don't we?