http://www.rssboard.org/rss-specification 720 XTF Search Results (expand=subject;f1-subject=Instrument;f2-associated-Lesson=X-ray Impact) http://ecuip-xtf.lib.uchicago.edu/xtf/search?expand%3Dsubject;f1-subject%3DInstrument;f2-associated-Lesson%3DX-ray%20Impact Results for your query: expand=subject;f1-subject=Instrument;f2-associated-Lesson=X-ray Impact Thu, 01 Jan 1970 12:00:00 GMT Schematic of Grazing Incidence, X-Ray Mirror. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/Nested-Paraboloid/Nested-Paraboloid.dc.xml This cutaway illustrates the grazing-incidence design and functioning of the High Resolution Mirror Assembly (HRMA) on the Chandra X-ray Observatory. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/Nested-Paraboloid/Nested-Paraboloid.dc.xml Thu, 01 Jan 1970 12:00:00 GMT