Researchers created the first digital 3D model of Rano Raraku quarry on Rapa Nui, the main quarry for the moai. The quarry has nearly 1,000 statues and the model records where each statue stands and how big it is.
To build the model the team used drones and took many images during several field trips. Computer software joined the images to make the three-dimensional record, and archaeologists then studied the model to find patterns at the site.
The work suggests moai were made in separate workshops by local groups rather than by one ruler. Students helped and the data were shared with the local indigenous organisation for conservation and heritage planning.
Difficult words
- quarry — Place where stone or minerals are dug
- drone — Small unmanned aircraft with a cameradrones
- model — A copy that shows how something looks
- workshop — Place where people make or repair thingsworkshops
- archaeologist — A person who studies past human activityarchaeologists
- indigenous — Belonging to the original local people
- conservation — Protection and care of nature and objects
Tip: hover, focus or tap highlighted words in the article to see quick definitions while you read or listen.
Discussion questions
- Why is it useful to share the data with the local indigenous organisation?
- Have you ever seen a 3D model or drone images? Describe briefly.
- Do you think small local workshops or a single ruler are better for making large projects? Why?
Related articles
Sportellino: a multilingual chatbot for migrants in Italy
A multilingual chatbot called Sportellino launched to help migrants in Italy find public services and practical guidance. It is free, anonymous and available via messaging apps; its information is based on official sources and experts.
New acid-free way to recycle lithium-ion batteries
Researchers at Rice University developed a two-step FJH-ClO process that separates lithium and other metals from spent batteries. The lab-scale method recovers valuable materials with less energy, fewer chemicals and less wastewater.
Latin American groups build AI to study gender violence
Groups in Latin America create open, local AI tools to study gender inequalities and violence. Projects like AymurAI search court documents, protect sensitive data on local servers and help governments and civil society with evidence.
