Heavy metal

Engineers at Ryerson University in Toronto, Canada and the American University of Beirut in Lebanon have developed a way to use infrared imaging to locate landmines more safely and quickly.

Zouheir Fawaz, associate dean and professor of the department of aerospace engineering, said most anti-personnel devices, usually buried beneath a few inches of soil, are detected by prodding the ground with a metal rod.

Fawaz and Fadl Moukalled, along with Nesreen Ghaddar and Yamen Saleh of the

of

, researched how a specially designed infrared camera can be used to detect landmines by picking up their thermal signature.

Objects absorb heat and cool down at different rates, explained Fawaz, so an infrared camera would be able to detect the differences in temperature between two objects buried in the ground and display the heat variations on to a screen.