PPT-Gravity at NGS:  Why We Need it and How We Measure It

Derek van Westrum PhD NGS Observations and Analysis Division derekvanwestrumnoaagov NOAAs National Geodetic Survey geodesynoaagov 1 A Bit About Me Im Derek van Westrum Ive been a physicist with NOAAs National Geodetic Survey for 5 years. Universal gravitational constant G667 x 10 11 Nm kg 2 2 EPS 122 Lecture 14 Gravity and isostasy Theory of gravity Gravitational potential Definition The gravitational potential V due to a point mass m at a distance r from m is the work done by th Gravity Pilates Tina Gravity Danielle MIND STUDIO MONDAY TUESDAY WEDNESDAY THURSDAY FRIDAY SATURDAY SUNDAY 8:00 Spartacus Boot Camp Rick 9:30 Barre Marla/Danielle Fusion (L1-2) Naomi Hatha Rencontres du Vietnam. Aug. 19. th. 2015. Claudia de . Rham. Modified Gravity. Lorentz-Violating. Lorentz-Invariant. Massless spin-2. Non-minimally coupled. (Scalar-Tensor). Gravity as a spin-2. Gravity. Gravity is a force that for us is always directed downwards. But to say that gravity acts 
downwards is not correct. Gravity acts down, no matter where you stand on the Earth. It is 
better to say that on Earth gravity pulls objects towards the center of the Earth. So no matter 
where you are on Earth all objects fall to the ground. A Brief Timeline of the . Discovery of Gravity. Aristotle. There . is . no effect or motion without a cause. . . The element of earth was thought to be heavy by nature and therefore pulled towards the centre of the (geocentric) universe.. ASTR 101. Prof. Dave Hanes. Orbiting Near, Around, . and Away from the Earth. Let’s consider:. Ballistic missiles on Earth. Artificial satellites. Geosynchronous satellites. Actually escaping the Earth. Gary Horowitz. UC Santa Barbara. with N. . Engelhardt. . (1509.07509, and in progress). Happy Birthday . David. !. A powerful feature of gauge/gravity duality is that statements that are easy to establish on one side often imply highly nontrivial results about the dual theory.. Gravity. Gravity is a force that for us is always directed downwards. But to say that gravity acts 
downwards is not correct. Gravity acts down, no matter where you stand on the Earth. It is 
better to say that on Earth gravity pulls objects towards the center of the Earth. So no matter 
where you are on Earth all objects fall to the ground. “Interacting Atomic Interferometry for Rotation Sensing Approaching the Heisenberg Limit,” . S. . Ragole. and J.M. Taylor, Phys. Rev. Lett., 117, 203002 . (. 2016). A ring-shaped arrangement of atoms, coaxed into a swirling quantum superposition by lasers, could probe gravity's strength down to very small scales. (Credit: E. Edwards/JQI). Convert the following to scientific notation. Distance from Sun. : 92,960,000 . miles ____. Estimated Age of universe – 14,000,000,000. Convert the following to standard form. Speed of light = 9.0 * 10. Key bene30tsA height-reference system reference surface for topographic processes and sea-level change as a result of the projectAn artist146s impression of the GOCE mission in orbit left and the EGG Part 1: Gravity Surveying Field Data Example. Image credits: . A.Parsekian. , USGS, . S.Kruse. Overview. Sinkholes and karst as a gravity target . The importance of locating sinkholes for hazard mitigation. -- A Whirlwind tour. Presented by Daniel Winester, Geodesist, NGS Gravimetry Representative to the Geophysics Committee of U.S. National Section of PAIGH since 2002. In the past few decades NGS’ gravity work has concentrated on. a. nd by GNSS/. levelling. J. Klokočník. 1. , J. Kostelecký. 2,3. , B. Bucha. 4. , A. Bezděk. 1. , Ch. Foerste. 5. 1. Astronomical Institute, Academy of Sciences of the Czech Republic, . p.r.i. . (ASÚ),CZ – 251 65 .