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Home > All Images > 1999 > May > 17 May 1999

Images Dated 17th May 1999

Choose from 7 pictures in our Images Dated 17th May 1999 collection for your Wall Art or Photo Gift. All professionally made for Quick Shipping.


Thermogram showing heat loss from a house 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

© DR. ARTHUR TUCKER/SCIENCE PHOTO LIBRARY