Dialogos of Eide/Home

  • Space Geodesy

     Project manager Stephen Merkowitz talks about his work with NASA’s Space Geodesy Project, including a brief overview of the four fundamental techniques of space geodesy: GPS, VLBI, SLR, and DORIS. Learn more about space geodesy at: http://space-geodesy.nasa.gov/ This video is public domain and can be downloaded at: http://svs.gsfc.nasa.gov/goto?11031 Space Geodesy provides positioning, navigation, and timing…

  • Subtly Shaded Map of Moon Reveals Titanium Treasure Troves

    A map of the Moon combining observations in visible and ultraviolet wavelengths shows a treasure trove of areas rich in Titanium ores. Not only is Titanium a valuable mineral, it is key to helping scientists unravel the mysteries of the Moon’s interior.  Mark Robinson and Brett Denevi will be presenting the results from the Lunar…

  • LRO’s Crater Science Investigations

    If you want to learn more about the history of Earth and other rocky planets in the solar system, craters are a great place to look. Now, thanks to LRO’s LROC instrument, we can take a much closer look at Linné Crater on the moon–a pristine crater that’s great to use to compare with other…

  • The Lunar Far Side: The Side Never Seen from Earth

                                                                Mass concentration (astronomy) This figure shows the topography (top) and corresponding gravity (bottom) signal of Mare Smythii at the Moon. It nicely illustrates the term “mascon”. Author Martin Pauer…

  • LCROSS Observes Water on Moon

    Data from the ultraviolet/visible spectrometer taken shortly after impact showing emission lines (indicated by arrows). These emission lines are diagnostic of compounds in the vapor/debris cloud.Credit: NASA LCROSS Impact Data Indicates Water on Moon11.13.09 The argument that the moon is a dry, desolate place no longer holds water. Secrets the moon has been holding, for…

  • On Gauss’s Mountain

    You must understand that any corrections necessary are appreciated. The geometrical process spoken too here must be understood in it’s historical development to undertand, how one can see differently. Euclidean geometry, elementary geometry of two and three dimensions (plane and solid geometry), is based largely on the Elements of the Greek mathematician Euclid (fl. c.300…