New Purdue University Microscope (IMAGE) Purdue University Caption A new type of microscope from Purdue University stacks the reference object and the one being examined on top of each other, instead of the conventional approach of having them side by side. Credit Garth Simpson, Purdue University Usage Restrictions None License Licensed content 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.