TY - GEN TI - Engineering and Science, Volume 78:2, Summer 2015 Y1 - 2015/// PB - California Institute of Technology SN - 0013-7812 UR - https://resolver.caltech.edu/CaltechES:20150818-155500191 CY - Pasadena, CA AV - public ID - calteches4595 N1 - On the Cover: The ?noise? depicted on the cover is a screenshot from a video representation of Richard Wagner?s ?Ride of the Valkyries,? which is played at ear-splitting volume at 7 a.m. on the dot every morning during finals week at Caltech. The image was created for E&S by motion-graphics designer Ryan Luse. But that?s not all it is. In keeping with the issue?s theme?noise, and finding the signal within the noise ? we?ve hidden a signal on the cover as well. It is, appropriately enough, the word noise. Can you find it? Here?s a hint: Check out the light-colored ?spikes.? Still can?t see it? You?re not alone. We?ve created a highlighted version for you on E&S+. Just visit eands.caltech.edu. ER -