BE540451A - - Google Patents

Info

Publication number
BE540451A
BE540451A BE540451DA BE540451A BE 540451 A BE540451 A BE 540451A BE 540451D A BE540451D A BE 540451DA BE 540451 A BE540451 A BE 540451A
Authority
BE
Belgium
Prior art keywords
disc
representation
celestial
bearing
stars
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE540451A publication Critical patent/BE540451A/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C21/00—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00
    • G01C21/02—Navigation; Navigational instruments not provided for in groups G01C1/00 - G01C19/00 by astronomical means
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G1/00—Hand-manipulated computing devices
    • G06G1/0005—Hand-manipulated computing devices characterised by a specific application
    • G06G1/0052—Hand-manipulated computing devices characterised by a specific application for air navigation or sea navigation
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G1/00—Hand-manipulated computing devices
    • G06G1/02—Devices in which computing is effected by adding, subtracting, or comparing lengths of parallel or concentric graduated scales
    • G06G1/04—Devices in which computing is effected by adding, subtracting, or comparing lengths of parallel or concentric graduated scales characterised by construction
    • G06G1/08—Devices in which computing is effected by adding, subtracting, or comparing lengths of parallel or concentric graduated scales characterised by construction with circular or helical scales

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Astronomy & Astrophysics (AREA)
  • Automation & Control Theory (AREA)
  • Ocean & Marine Engineering (AREA)
  • Mathematical Physics (AREA)
  • Instructional Devices (AREA)
BE540451D BE540451A (de)

Publications (1)

Publication Number Publication Date
BE540451A true BE540451A (de)

Family

ID=169807

Family Applications (1)

Application Number Title Priority Date Filing Date
BE540451D BE540451A (de)

Country Status (1)

Country Link
BE (1) BE540451A (de)

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