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Home > All Images > 2003 > July > 28 Jul 2003

Images Dated 28th July 2003

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

Choose from 33 pictures in our Images Dated 28th July 2003 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.


House, thermogram Featured 28 Jul 2003 Print

House, thermogram

House, thermogram. The colours show variations in temperature. The scale runs from white (warmest), through yellow, orange, red and purple to blue (coldest). Thermography records the temperature of surfaces by detecting long-wavelength infrared radiation. Heat is being lost through the windows (yellow), but retained by insulation in the roof. One room and window (centre left) are colder than the others. One of the parked cars (bottom right) is warmer than the others, and may have its engine running or have had its engine running recently

© TONY MCCONNELL/SCIENCE PHOTO LIBRARY

Technician examines results of DNA electrophoresis Featured 28 Jul 2003 Print

Technician examines results of DNA electrophoresis

MODEL RELEASED. DNA electrophoresis. Researcher looks at samples of DNA (DeoxyriboNucleic Acid) fragments which have been separated by electro- phoresis. The fragments were labelled with a fluorescent marker and placed in a well in a sheet of agarose gel. The fragments (bright patches) were separated by applying an electric current across the gel. Some fragments moved faster through the gel and were separated from others over time. This process allows the composition of the DNA to be observed. The researcher is wearing clean-room clothing and a face mask to prevent the samples from becoming contaminated with his own DNA

© VOLKER STEGER/SCIENCE PHOTO LIBRARY