Keeping Bugs Away from Food
Microbes at the Gas Pump
Middle school science adventures
Salamanders and Newts
Frogs and Toads
Little Beetle, Big Horns
Little Bee Brains That Could
Listening to Birdsong
Babies Prove Sound Learners
A Global Warming Flap
Birds We Eat
Carnivorous Birds
Chemistry and Materials
A Spider's Silky Strength
A Butterfly's Electric Glow
Moon Crash, Splash
A Classroom of the Mind
Galaxies far, far, far away
Play for Science
Dinosaurs and Fossils
Middle school science adventures
Dino-Dining Dinosaurs
An Ancient Feathered Biplane
E Learning Jamaica
2014 GSAT Results for Jamaican Kids
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
Results of GSAT are in schools this week
Distant Quake Changes Geyser Eruptions
Surf Watch
Greener Diet
Ready, unplug, drive
Will Climate Change Depose Monarchs?
Out in the Cold
Finding the Past
A Big Discovery about Little People
Untangling Human Origins
Stone Age Sole Survivors
Saltwater Fish
Food and Nutrition
Healing Honey
Chocolate Rules
In Search of the Perfect French Fry
GSAT English Rules
Adjectives and Adverbs
Who vs. That vs. Which
Finding Subjects and Verbs
GSAT Exam Preparation Jamaica
Scotiabank Jamaica Foundation Grade Six Achievement Test (GSAT) Scholarships
42,000 students will sit for the GSAT Exam in two weeks
GSAT stars reap scholarship glory
GSAT Exams Jamaica Scholarships
Results of GSAT are in schools this week
GSAT Scholarship
GSAT Practice Papers | GSAT Mathematics | Maths
GSAT Mathematics
Setting a Prime Number Record
GSAT Mathematics Quiz, Teaching Math, teaching anxiety
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
Human Body
Workouts: Does Stretching Help?
Cell Phone Tattlers
Sleeping Soundly for a Longer Life
Horseshoe Crabs
Dust Mites
African Jackal
Raise a Lifelong Reader by Reading Aloud
What Not to Say to Emerging Readers
Children and Media
Road Bumps
Einstein's Skateboard
Dreams of Floating in Space
Underwater Jungles
Bright Blooms That Glow
Fungus Hunt
Copperhead Snakes
Space and Astronomy
A Family in Space
A Star's Belt of Dust and Rocks
Sounds of Titan
Technology and Engineering
Squeezing Oil from Old Wells
Spinach Power for Solar Cells
Sugar Power for Cell Phones
The Parts of Speech
Countable and Uncountable Nouns
What is a Noun
Problems with Prepositions
Charged cars that would charge
Troubles with Hubble
Middle school science adventures
Warmest Year on Record
Antarctica warms, which threatens penguins
Catching Some Rays
Add your Article

Nanosponges Soak Up Pollutants

What could be worse than toxic sludge seeping into soil, poisoning animals and people? The headache of cleaning up all that muck. For years, engineers have struggled to get oil and tar out of the ground at hazardous-waste sites around the United States. Current methods are costly and inefficient. Now, environmental engineers from Cornell University say they may have a better solution. Their strategy involves nanotechnology, a new type of science involving very, very tiny things. In this case, the researchers created a special type of particle, measuring just 20 nanometers across. In comparison, each hair on your head is about 50,000 nanometers wide. The surface of the particle attracts water. The inside avoids water. The engineers then pumped a solution containing the new particles into a column of sand that was contaminated with a chemical called phenanthrene. The chemical is often found in coal tar. The nanoparticles were small enough to move through spaces between the sand grains. As the particles moved upward from the bottom of the sand column, their water-hating interiors sucked phenanthrene out of the sand, trapping it inside. The next challenge is to figure out how to make sure the cleanser nanoparticles return to the surface of the soil, where they can be gathered up and flushed clean of chemicals. To get around that problem, another group of scientists is trying to make nanoparticles that can convert contaminants into less harmful chemicals. That way, the particles could just stay in the soil. Smaller may really be better when it comes to cleaning up contaminated soil.E. Sohn

Nanosponges Soak Up Pollutants
Nanosponges Soak Up Pollutants

Designed and Powered by™