egg machine (IMAGE) Penn State Caption This novel conveyor devised for the experiment was instrumental in achieving acceptable decontamination. As the eggs rotate on their long axis along the way, the entire surface of the eggshell is exposed to the pulsed ultraviolet light energy. Credit Josh Casser/Penn State Usage Restrictions non commercial use only 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.