Agriculture
Watching out for vultures
Silk’s superpowers
Vitamin D-licious Mushrooms
Amphibians
Newts
Bullfrogs
Toads
Animals
Poor Devils
G-Tunes with a Message
A Seabird's Endless Summer
Behavior
Why Cats Nap and Whales Snooze
The Disappearing Newspaper
Lost Sight, Found Sound
Birds
Falcons
Ibises
Rheas
Chemistry and Materials
Lighting goes digital
Fog Buster
A Light Delay
Computers
Music of the Future
Games with a Purpose
A Classroom of the Mind
Dinosaurs and Fossils
Feathered Fossils
A Living Fossil
Tiny Pterodactyl
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
Earth
Getting the dirt on carbon
Recipe for a Hurricane
The Rise of Yellowstone
Environment
Fishing for Fun Takes Toll
Alien Invasions
A 'Book' on Every Living Thing
Finding the Past
Salt and Early Civilization
Stone Age Sole Survivors
A Human Migration Fueled by Dung?
Fish
Electric Eel
Saltwater Fish
Piranha
Food and Nutrition
Symbols from the Stone Age
Food for Life
Packing Fat
GSAT English Rules
Problems with Prepositions
Finding Subjects and Verbs
Subject and Verb Agreement
GSAT Exam Preparation Jamaica
GSAT Scholarship
How are students placed after passing the GSAT exam
2014 GSAT Results for Jamaican Kids
GSAT Exams Jamaica Scholarships
Results of GSAT are in schools this week
2014 GSAT Results for Jamaican Kids
GSAT stars reap scholarship glory
GSAT Mathematics
Detecting True Art
GSAT Mathematics Quiz, Teaching Math, teaching anxiety
Math of the World
Human Body
Tapeworms and Drug Delivery
A Long Haul
Smiles Turn Away Colds
Invertebrates
Insects
Arachnids
Daddy Long Legs
Mammals
Labradors
Jaguars
Glider
Parents
Children and Media
How children learn
What Not to Say to Emerging Readers
Physics
Gaining a Swift Lift
Spin, Splat, and Scramble
Project Music
Plants
Sweet, Sticky Science
Making the most of a meal
Tracking the Sun Improves Plant Pollen
Reptiles
Cobras
Gila Monsters
Boa Constrictors
Space and Astronomy
Melting Snow on Mars
Gravity Tractor as Asteroid Mover
A Family in Space
Technology and Engineering
Beyond Bar Codes
Roll-Up Computer Monitors to Go
A Micro-Dose of Your Own Medicine
The Parts of Speech
Problems with Prepositions
What is a Noun
Pronouns
Transportation
Robots on a Rocky Road
Robots on the Road, Again
Are Propellers Fin-ished?
Weather
Recipe for a Hurricane
Earth's Poles in Peril
Either Martians or Mars has gas
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 HBJamaica.com™