MARTYN F. CHILLMAID / SCIENCE PHOTO LIBRARY MARTYN F. CHILLMAID / SCIENCE PHOTO LIBRARY
Computer logging of results. Laptop computer and datalogger (centre right) being used to record the results of an experiment that is tracking the changes in temperature of water in an insulated beaker (lower centre). The laptop screen shows the results plotted on a graph as temperature in degrees Celsius (vertical axis) against time in minutes (horizontal axis). The temperature of the water decreased over a period of 15 minutes from around 90 to around 60 degrees Celsius. The insulation used here is cotton wool surrounding a glass beaker.
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