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Launchpad: How GPS Works

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Uploaded on Sep 3, 2008

In this NASA video segment a NASA expert explains the inner workings of the Global Positioning System (GPS). Learn more about trilateration and how four satellites work together to identify exact locations on Earth with the help of a two-dimensional model.

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Launchpad (9-12)

  1. 1

    Launchpad: Maps

  2. 2

    Launchpad: Space Age Technologies Measure Soil Moisture

  3. 3

    Launchpad: ICESat-2 - Next Generation Technology

  4. 4

    Launchpad: SAGE III Goes to the International Space Station

  5. 5

    Launchpad: The Heat Is On!

  6. 6

    Launchpad: Pumping Up the Volume

  7. 7

    Launchpad: What Are Radioisotope Power Systems?

  8. 8

    Launchpad: History, Benefits and Safety of Radioisotope Power Systems

  9. 9

    Launchpad: Descent and Landing - It's a Matter of Control

  10. 10

    Launchpad: Mission Infusion - A Look at What's Ahead

  11. 11

    Launchpad: NASA's Space Shuttle - A Workhorse in Action

  12. 12

    Launchpad: The Shuttle Experience

  13. 13

    Launchpad: Spinoffs - Technology Benefits for All

  14. 14

    Launchpad: Curiosity goes to Mars

  15. 15

    Launchpad: Astrobiology

  16. 16

    Launchpad: Newton's Laws On-Board the International Space Station

  17. 17

    Launchpad: Wave Motion

  18. 18

    Launchpad: Systems Science

  19. 19

    Launchpad: NASA in 3-D

  20. 20

    NASA Launchpad: Biofeedback

  21. 21

    NASA Launchpad: Neon Lights - Spectroscopy in Action

  22. 22

    Launchpad: Phase Diagrams and Why You Cannot Make a Snowball on Mars

  23. 23

    Launchpad: The Lighter Side

  24. 24

    Launchpad: Surface Tension On-Board the International Space Station

  25. 25

    Launchpad: Cohesion and Adhesion On-Board the International Space Station

  26. 26

    Launchpad: Bernoulli's Principle On-Board the International Space Station

  27. 27

    Launchpad: NASA and Biosphere 2

  28. 28

    Launchpad: Solar Eclipses

  29. 29

    Launchpad: Methane on Mars

  30. 30

    Launchpad: Methane - An Indicator for Life?

  31. 31

    Launchpad: Cryogenics - The Cold Hard Facts

  32. 32

    Launchpad: Liftoff with Solid Rocket Boosters

  33. 33

    Launchpad: Firing the Space Shuttle Main Engines

  34. 34

    Launchpad: Moon Magic

  35. 35

    Launchpad: Transits

  36. 36

    Launchpad: Cryogenics in Transportation

  37. 37

    Launchpad: The Search for Exoplanets

  38. 38

    Launchpad: Thin Ice - Looking at Birefringence

  39. 39

    Launchpad: Apollo 11 - Challenges of Landing on the Moon

  40. 40

    Launchpad: Apollo 11 - History in the Making

  41. 41

    Launchpad: Gigapan

  42. 42

    Launchpad: Designing a Capsule for Space

  43. 43

    Launchpad: Kepler

  44. 44

    Launchpad: Data Loggers

  45. 45

    Launchpad: Using Technology to Make Discoveries on Mars

  46. 46

    Launchpad: Night Shining Clouds

  47. 47

    Launchpad: New Horizons Heads Toward Pluto

  48. 48

    Launchpad: New Horizons Covers the Distance

  49. 49

    Launchpad: Atmosphere and Optical Telescopes

  50. 50

    Launchpad: Infrared Astronomy on Mauna Kea

  51. 51

    Launchpad: NASA's History of Winter Program

  52. 52

    Launchpad: Fluid Dynamics - What a Drag!

  53. 53

    Launchpad: Mapping the Boundaries of Our Solar System

  54. 54

    Launchpad: The Fermi Gamma Ray Space Telescope

  55. 55

    Launchpad: Ares I-X Overview

  56. 56

    Launchpad: Mass Properties

  57. 57

    Launchpad: Flight Test Articles

  58. 58

    Launchpad: Aurora Lights - Why They Exist and What Causes Them

  59. 59

    Launchpad: Electron Beam Free Form Fabrication System

  60. 60

    Launchpad: LCROSS Finding Water on the Moon Music Video

  61. 61

    Launchpad: Food for Thought

  62. 62

    Launchpad: Light Detection and Ranging

  63. 63

    Launchpad: Food Availability for the Mission to Mars

  64. 64

    Launchpad: Contrails

  65. 65

    Launchpad: Clouds and Earth's Radiation Budget

  66. 66

    Launchpad: Advanced Equipment to Use on the Moon

  67. 67

    Launchpad: The Launch Abort System and g-Forces

  68. 68

    Launchpad: Multifunctional Equipment for Moon Missions

  69. 69

    Launchpad: NASA Technologies Used to Treat Acne and Orthodontics

  70. 70

    Launchpad: NASA Technologies Helping Firefighters

  71. 71

    Launchpad: Three Hot Topics at NASA

  72. 72

    Launchpad: UAVs - How They Work and Why They Are Useful

  73. 73

    Launchpad: Global Warming - How Humans are Affecting Our Planet

  74. 74

    Launchpad: Food Aboard the International Space Station

  75. 75

    Launchpad: How NASA Technologies Influence Indy Cars

  76. Launchpad: How GPS Works

  77. 77

    Launchpad: NASA and Indy Cars

  78. 78

    Launchpad: NASA and NASCAR

  79. 79

    Launchpad: Aviation Infrastructure for the 21st Century

  80. 80

    Launchpad: Invention of Doppler Radar

  81. 81

    Launchpad: Flight Simulators - A Safer Way to Test

  82. 82

    Launchpad: The 21st Century Crew Exploration Vehicle

  83. 83

    Launchpad: The Making of the Biosuit

  84. 84

    Launchpad: Protective Materials for Spacecraft

  85. 85

    Launchpad: Space Food

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