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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: Space Age Technologies Measure Soil Moisture

  2. 2

    Launchpad: ICESat-2 - Next Generation Technology

  3. 3

    Launchpad: SAGE III Goes to the International Space Station

  4. 4

    Launchpad: The Heat Is On!

  5. 5

    Launchpad: Pumping Up the Volume

  6. 6

    Launchpad: What Are Radioisotope Power Systems?

  7. 7

    Launchpad: History, Benefits and Safety of Radioisotope Power Systems

  8. 8

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

  9. 9

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

  10. 10

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

  11. 11

    Launchpad: The Shuttle Experience

  12. 12

    Launchpad: Spinoffs - Technology Benefits for All

  13. 13

    Launchpad: Curiosity goes to Mars

  14. 14

    Launchpad: Astrobiology

  15. 15

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

  16. 16

    Launchpad: Wave Motion

  17. 17

    Launchpad: Systems Science

  18. 18

    Launchpad: NASA in 3-D

  19. 19

    NASA Launchpad: Biofeedback

  20. 20

    NASA Launchpad: Neon Lights - Spectroscopy in Action

  21. 21

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

  22. 22

    Launchpad: The Lighter Side

  23. 23

    Launchpad: Surface Tension On-Board the International Space Station

  24. 24

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

  25. 25

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

  26. 26

    Launchpad: NASA and Biosphere 2

  27. 27

    Launchpad: Solar Eclipses

  28. 28

    Launchpad: Methane on Mars

  29. 29

    Launchpad: Methane - An Indicator for Life?

  30. 30

    Launchpad: Cryogenics - The Cold Hard Facts

  31. 31

    Launchpad: Liftoff with Solid Rocket Boosters

  32. 32

    Launchpad: Firing the Space Shuttle Main Engines

  33. 33

    Launchpad: Moon Magic

  34. 34

    Launchpad: Transits

  35. 35

    Launchpad: Cryogenics in Transportation

  36. 36

    Launchpad: The Search for Exoplanets

  37. 37

    Launchpad: Thin Ice - Looking at Birefringence

  38. 38

    Launchpad: Apollo 11 - Challenges of Landing on the Moon

  39. 39

    Launchpad: Apollo 11 - History in the Making

  40. 40

    Launchpad: Gigapan

  41. 41

    Launchpad: Designing a Capsule for Space

  42. 42

    Launchpad: Kepler

  43. 43

    Launchpad: Data Loggers

  44. 44

    Launchpad: Using Technology to Make Discoveries on Mars

  45. 45

    Launchpad: Night Shining Clouds

  46. 46

    Launchpad: New Horizons Heads Toward Pluto

  47. 47

    Launchpad: New Horizons Covers the Distance

  48. 48

    Launchpad: Atmosphere and Optical Telescopes

  49. 49

    Launchpad: Infrared Astronomy on Mauna Kea

  50. 50

    Launchpad: NASA's History of Winter Program

  51. 51

    Launchpad: Fluid Dynamics - What a Drag!

  52. 52

    Launchpad: Mapping the Boundaries of Our Solar System

  53. 53

    Launchpad: The Fermi Gamma Ray Space Telescope

  54. 54

    Launchpad: Ares I-X Overview

  55. 55

    Launchpad: Mass Properties

  56. 56

    Launchpad: Flight Test Articles

  57. 57

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

  58. 58

    Launchpad: Electron Beam Free Form Fabrication System

  59. 59

    Launchpad: LCROSS Finding Water on the Moon Music Video

  60. 60

    Launchpad: Food for Thought

  61. 61

    Launchpad: Light Detection and Ranging

  62. 62

    Launchpad: Food Availability for the Mission to Mars

  63. 63

    Launchpad: Contrails

  64. 64

    Launchpad: Clouds and Earth's Radiation Budget

  65. 65

    Launchpad: Advanced Equipment to Use on the Moon

  66. 66

    Launchpad: The Launch Abort System and g-Forces

  67. 67

    Launchpad: Multifunctional Equipment for Moon Missions

  68. 68

    Launchpad: NASA Technologies Used to Treat Acne and Orthodontics

  69. 69

    Launchpad: NASA Technologies Helping Firefighters

  70. 70

    Launchpad: Three Hot Topics at NASA

  71. 71

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

  72. 72

    Launchpad: Global Warming - How Humans are Affecting Our Planet

  73. 73

    Launchpad: Food Aboard the International Space Station

  74. 74

    Launchpad: How NASA Technologies Influence Indy Cars

  75. Launchpad: How GPS Works

  76. 76

    Launchpad: NASA and Indy Cars

  77. 77

    Launchpad: NASA and NASCAR

  78. 78

    Launchpad: Aviation Infrastructure for the 21st Century

  79. 79

    Launchpad: Invention of Doppler Radar

  80. 80

    Launchpad: Flight Simulators - A Safer Way to Test

  81. 81

    Launchpad: The 21st Century Crew Exploration Vehicle

  82. 82

    Launchpad: The Making of the Biosuit

  83. 83

    Launchpad: Protective Materials for Spacecraft

  84. 84

    Launchpad: Space Food

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