A CT scanner looks like a purely modern high-tech machine, but one of its foundations came from mathematical work developed decades earlier by a South African-born scientist who later emigrated to the United States. It's a reminder that innovation doesn't always begin in a lab with a machine — sometimes it begins with mathematics and a different way of looking at a problem.
Source: South African Government
Frequently Asked Questions
What exactly did Cormack contribute?
His mathematical work on reconstructing cross-sectional images from X-ray measurements became fundamental to how CT/CAT scanners process data into images.
Did Cormack build the first CT scanner himself?
No — Godfrey Hounsfield built the first practical scanner; Cormack's earlier mathematical work provided the theoretical foundation both shared the Nobel Prize for.
Where did Cormack do most of his career?
He emigrated to the United States, where he continued his academic career, though he was born and initially educated in South Africa.