In the science of Remote Sensing, the term “parallax” refers to the apparent displacement of an object caused by a change in the point of observation. For overhead images of the Earth, this intentional change in perspective allows the user to calculate precise geometry of the surface. From two - two-dimensional images of the same location, but from different perspectives, the opportunity to assess and measure elevation and other 3d features becomes available. Either of the single images are not enough on their own to supply this information. While a second image is itself a new perspective, the two images together can yield an entirely new set of data that can be leveraged to improve situational understanding of the surface.
Nick retired from the US Army after 13 years as an Infantry Officer and Space Operations Officer. He led men in combat in Afghanistan and taught earth science and remote sensing (satellite imaging science and processing) as an Assistant Professor at West Point prior to his retirement. Through his experiences as an Army Space Professional, he developed a comprehensive understanding of the space domain and realized his interest in sharing this knowledge with others. In addition to teaching at the United States Military Academy (West Point), Nick was an instructor at the US Army Ranger School (Mountain Phase) and at the Infantry Officer's Basic Course. These three unique teaching opportunities cemented his passion for educating, particularly around subjects where he has developed core competencies. Nick and his wife, Amy, have four young boys who they try to keep up with and shepherd toward becoming young men.