Magnetic temperature meter revealed

Those who wish to renovate their houses and make them more energy-efficient often use the well-known yellow to blue thermal images to visually identify weak spots applying infra-red measurements. Thermographic imaging is also used in industry for materials testing. Depending on the material, however, the method can result in large measurement errors. Scientists at Kiel University have now developed a technology that visually identifies the slightest temperature differences with high spatial reso...