World's Best Thermometer (image) University of Adelaide Caption Caption: A computer generated image of the Light Thermometer. A slight difference in the speed of the green and red light can tell us the temperature. Credit Image by Dr James Anstie, IPAS and School of Chemistry and Physics, University of Adelaide. Usage Restrictions Please credit as above Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.