Agriculture
Fast-flying fungal spores
Hungry bug seeks hot meal
Watching out for vultures
Amphibians
Toads
Tree Frogs
Newts
Animals
Stunts for High-Diving Ants
Spotting the World's Leggiest Animal
A Seabird's Endless Summer
Behavior
Between a rock and a wet place
Taking a Spill for Science
Primate Memory Showdown
Birds
Cassowaries
Backyard Birds
Lovebirds
Chemistry and Materials
A Butterfly's Electric Glow
Sticking Around with Gecko Tape
Earth-Friendly Fabrics
Computers
Lighting goes digital
Hubble trouble doubled
The hungry blob at the edge of the universe
Dinosaurs and Fossils
Fossil Forests
Dino Flesh from Fossil Bone
Did Dinosaurs Do Handstands?
E Learning Jamaica
E Learning in Jamaica WIN PRIZES and try our Fun Animated Games
Results of GSAT are in schools this week
2014 GSAT Results for Jamaican Kids
Earth
A Volcano's Deadly Ash
Quick Quake Alerts
Plastic-munching microbes
Environment
A Vulture's Hidden Enemy
Inspired by Nature
Eating Up Foul Sewage Smells
Finding the Past
A Plankhouse Past
Decoding a Beverage Jar
Early Maya Writing
Fish
Trout
Megamouth Sharks
Skates and Rays
Food and Nutrition
Allergies: From Bee Stings to Peanuts
A Taste for Cheese
Chew for Health
GSAT English Rules
Pronouns
Order of Adjectives
Problems with Prepositions
GSAT Exam Preparation Jamaica
Results of GSAT are in schools this week
Tarrant High overcoming the odds
2014 GSAT Results for Jamaican Kids
GSAT Exams Jamaica Scholarships
2014 GSAT Results for Jamaican Kids
42,000 students will sit for the GSAT Exam in two weeks
GSAT Exam Preparation
GSAT Mathematics
Play for Science
How a Venus Flytrap Snaps Shut
Losing with Heads or Tails
Human Body
Disease Detectives
Music in the Brain
Taste Messenger
Invertebrates
Walking Sticks
Sea Anemones
Lice
Mammals
African Hyenas
Numbats
Prairie Dogs
Parents
Children and Media
Raise a Lifelong Reader by Reading Aloud
How children learn
Physics
Electric Backpack
Einstein's Skateboard
Road Bumps
Plants
Plants Travel Wind Highways
The algae invasion
Stalking Plants by Scent
Reptiles
Garter Snakes
Cobras
Alligators
Space and Astronomy
Cool as a Jupiter
An Icy Blob of Fluff
Zooming In on the Wild Sun
Technology and Engineering
Spinach Power for Solar Cells
Roll-Up Computer Monitors to Go
Smart Windows
The Parts of Speech
Pronouns
What is a Noun
Problems with Prepositions
Transportation
Troubles with Hubble
How to Fly Like a Bat
Middle school science adventures
Weather
Earth's Poles in Peril
The solar system's biggest junkyard
The Best Defense Is a Good Snow Fence
Add your Article

Writing on eggshells

From graffiti to wallpaper to the geometric shapes used to decorate buildings, people have been making designs out of patterns for a long time. Designs can be just for looks, or they can be used to communicate a message. According to a new study, an ancient culture in what is today South Africa scratched on ostrich eggshells to make symbols 60,000 years ago. The researchers say these shells represent some of the earliest evidence yet for people engraving designs. The eggshells were discovered at the Diepkloof Rock Shelter in South Africa, and over the last few years researchers have collected 270 shell fragments with scratch marks on them. The largest pieces are roughly the size of your thumbnail, and the researchers think that the 270 pieces could have come from about 25 different eggshells. In a recent study led by Pierre-Jean Texier, researchers say they have identified two patterns in the scratches. The older pattern looks something like a ladder on its side: two parallel lines are connected by smaller lines etched at right angles to the original two. The newer pattern also uses parallel lines with shorter lines crossing them, but sometimes the long lines run together or cross each other. Each pattern was popular for awhile sometime between 65,000 and 55,000 years ago. Texier is an archaeologist at the University of Bordeaux 1 in Talence, France. An archaeologist is a scientist who studies places where people lived long ago and the artifacts remaining in those places — tools, pottery, or, in this case, eggshells. The goal is to understand the lives and cultures of ancient people. The eggshells were engraved by the Howiesons Poort culture, African hunter-gatherers. Many of the fragments were found with holes punched in them, which suggests they were parts of containers — in this case, probably vessels used to carry water. The suggestion that these ancient people were able to transport water is very exciting to archaeologists. “The ability to carry and store water is a breakthrough technological advance, and here we have excellent evidence for it very early,” Curtis Marean told Science News. “Wow!” Marean is an archaeologist at Arizona State University in Tempe. Archaeologists already knew that this ancient culture — as well as other cultures nearby — carved designs into pieces of clay, but this study shows that the ancient people came back to the same patterns over and over again. A particular pattern may show ownership: Just as you write your name on your belongings, someone may have scratched his pattern into his water vessel. Texier, who led the study, suggests the patterns may have identified shells that belonged to a particular community. The ostrich eggshells aren’t the oldest artifacts to emerge from this part of South Africa. Recently, 13 pieces of engraved pigment were removed from the area. (Pigment is a kind of clay often used for coloring.) These pieces are believed to be between 75,000 and 100,000 years old — showing that ancient cultures had already started carving designs by that time.

Writing on eggshells
Writing on eggshells








Designed and Powered by HBJamaica.com™