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Images Dated 17th May 1999

Available as Framed Photos, Photos, Wall Art and Gift Items

Choose from 7 pictures in our Images Dated 17th May 1999 collection for your Wall Art or Photo Gift. Popular choices include Framed Photos, Canvas Prints, Posters and Jigsaw Puzzles. All professionally made for quick delivery.

Thermogram of a hand holding a hamburger
Science Photo Library

Thermogram of a mans head and shoulders
Science Photo Library

Thermogram of feet wearing trainers
Science Photo Library

Thermogram of a woman in a supermarket
Science Photo Library

Thermogram of a close-up of a human ear
Science Photo Library

Thermogram showing heat loss from a house
Science Photo Library

Featured 17 May 1999 Print

Thermogram showing heat loss from a house

Heat loss. Thermogram of a house showing the distribution of heat over its surface. The temperature scale runs from red (warmest) through yellow, green, cyan and blue to mauve (coldest). Thermography is a technique for visualising the temperature of surfaces by recording their emission of long-wavelength variation. This heat radiation is detected electronically and displayed with different colours representing different temperatures. This thermogram shows that the roof is well insulated, while the walls and windows are losing the heat. Thermograms are used to check houses for heat loss, so their heat insulation can be improved