Search Results | pollution
Your search for "pollution" returned 269 results
How Two-stroke Engines Work
science.howstuffworks.com/transport/engines-equipment/two-stroke.htm
A car engine uses a four-stroke cycle -- how can two strokes accomplish the same tasks? Learn all about the two-stroke engine, where it's used and how it compares to a four-stroke.
How can we speed up plastic photodegradation?
science.howstuffworks.com/environmental/green-science/speed-up-plastic-photodegradation.htm
Sunlight can break plastic down but not very fast. Is there a way to speed up the process so that natural environments like this one aren't cluttered with plastic debris for centuries?
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 Gray Water Reclamation Works
science.howstuffworks.com/environmental/green-science/gray-water-reclamation.htm
Gray water reclamation is a developing way to reduce water waste and go green. Find out how gray water reclamation works.
10 Advancements in Environmental Engineering
science.howstuffworks.com/engineering/civil/10-advancements-environmental-engineering.htm
Environmental engineering existed long before it had a name. It began at the dawn of civilization when we started changing our surroundings to meet our needs.
How Old Is Earth and How Did Scientists Figure It Out?
science.howstuffworks.com/how-old-is-earth.htm
In 1953, CalTech geochemist Clair Patterson came up with an estimate for Earth's age that still holds today.
What is the energy source of the future?
science.howstuffworks.com/environmental/energy/energy-source-future.htm
What is the energy source of the future? Learn more about the energy source of the future in this article.
Why Is the Ocean Different Colors in Different Places?
Ocean water is not actually blue, but appears in different shades for many reasons.
Is China Launching Fake Moon a Bright Idea?
science.howstuffworks.com/is-china-launching-fake-moon-bright-idea.htm
China is planning launch a 'fake' moon to provide extra illumination to Chengdu, Sichuan. HowStuffWorks looks at why.
How Free Radicals Affect Your Body
science.howstuffworks.com/life/cellular-microscopic/free-radicals.htm
When an electron loses its partner, it creates a free radical. So is that free radical now potentially hazardous to your health?