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How Laser Weapons Work
science.howstuffworks.com/laser-weapon.htm
Laser weapons have been depicted in science fiction for years, but they do exist in real life. Learn more about laser weapons.
How Laughter Works
science.howstuffworks.com/life/inside-the-mind/emotions/laughter.htm
In this article, we'll look at laughter -- what it is, what happens in our brains when we laugh, what makes us laugh and how it can make us healthier and happier. You'll also learn that there's a tremendous amount that no one understands yet.
How Leprosy Works
science.howstuffworks.com/life/biology-fields/leprosy.htm
There are many myths and stigmas associated with leprosy, almost all completely incorrect. It's not a very contagious disease, and it's easily treatable. What else is wrong in the common beliefs about Hansen's disease?
How LifeStraw Works
science.howstuffworks.com/environmental/green-tech/remediation/lifestraw.htm
Many of us take clean water for granted, but hundreds of millions of people have no access to it. Luckily, technologies like LifeStraw can help make water safer for individuals and families who desperately need it.
How Light Microscopes Work
science.howstuffworks.com/light-microscope.htm
The human eye misses a lot -- enter the incredible world of the microscopic! Explore how a light microscope works.
How Light Pollution Works
science.howstuffworks.com/environmental/green-science/light-pollution.htm
Light pollution is explained in this article. Learn about light pollution.
How Light Propulsion Will Work
science.howstuffworks.com/light-propulsion.htm
Like many new technologies, light propulsion was originally conceived as a tool of war and national defense. But the "Star Wars" missile defense system may eventually send rockets, rather than missile-destroying lasers, into space.
How Light Sticks Work
science.howstuffworks.com/innovation/everyday-innovations/light-stick.htm
Light sticks produce a mesmerizing neon glow before slowly extinguishing. Learn about light sticks, chemical light sticks and how they work.
How Light Works
science.howstuffworks.com/light.htm
Some of the brightest minds in history have focused their intellects on the subject of light. Einstein even tried to imagine riding on a beam of light. We won't get that crazy, but we will shine a light on everything scientists have found so far.
How Lightning Works
science.howstuffworks.com/nature/natural-disasters/lightning.htm
Lightning is an incredible force of nature. And like many natural phenomena, lightning is not always what it seems. Go behind the mystery and learn what's really going on when lightning strikes.