Dating the spheres
2013 and 2015
More samples are taken, this time from the two spheres’ surface paper and textile substrata, for AMS radiocarbon testing […]
Category Archives: Authentification
1875 facsimiles ?
June 2013
The project team meets with Dr Peter van der Krogt of the Universities of Amsterdam and Utrecht, an expert on Dutch globes of the 16th and 17th centuries […]
Sounding out an historian
13 June 2013
The project team meets with Dr Peter van der Krogt of the Universities of Amsterdam and Utrecht, an expert on Dutch globes of the 16th and 17th centuries […]
Dating the stands
August 2012
Samples are taken from the stands of the terrestrial and celestial globes for C14 radiocarbon dating. The relevance of the samples is ensured using dendrochronology (growth-ring analysis) […]