Navigation. Introduction Equipment Surface Positioning Measuring Distances Underwater Natural Navigation Compass Navigation. Good divers navigate effectively. Why you should become proficient with UW Navigation?. Successful Navigation Reduces confusion and anxiety

ByNavigation. Introduction Equipment Surface Positioning Measuring Distances Underwater Natural Navigation Compass Navigation. Good divers navigate effectively. Why you should become proficient with UW Navigation?. Successful Navigation Reduces confusion and anxiety

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Measuring Distances. The Measurement of Distance. Triangulation : Measure baseline and angles, can calculate distance. The Measurement of Distance. Parallax : Similar to triangulation, but look at apparent motion of object against distant background from two vantage points.

Measuring Distances. Introduction. Trigonometric Parallax Spectroscopic Parallax Cepheid Variables Type Ia Supernovae Tully-Fisher Relationship Hubble’s ‘Law’. Trigonometric Parallax.

Measuring Distances in Space. The Light-Year (ly). Light-year (ly). distance light travels in one year. Reminders. Light travels in a straight line. The speed of light is 300,000 km/s The sun is 150 million km away By car @ 100 kph, it would take us 165 years to get to the sun

Measuring Distances in Space. Measuring Distances in Space. Why is it so hard to measure distances in space?. The distances are so large that it is hard to imagine how big they are. Example- The distance from the sun to the Earth is 93 million miles or 150 million km. 93,000,000 miles

Measuring Distances in Space. Astronomical Units, Light Years, Parsecs. Measuring distances in space. The universe is enormous! Units of measurement on Earth are too small Other units are used instead. Astronomical Units. Used for measuring distances in the solar system Symbol: AU

Measuring Distances in Space. Sizes of Objects in the Universe. Quarks (parts of neutrons and protons) are the smallest objects at 10 -18 m while our universe is estimated to be 10 26 m. This is a total difference of 10 44 from smallest to largest things in our universe.

Map Scales and Measuring Distances. 1 Star Map and Compass Lesson 4. Revision. Conventional Signs Write down the names of these symbols. 1. 2. 3. 4. 5. 6. Revision. Grid References. Write down the two rules you need to remember when doing grid references.

U2: Astronomy - Measuring Space Distances . FLIP LESSON. On the Move.

Measuring Distances, Angles and Areas. AGME 1613 Fundamentals of Agricultural Systems Technology. Objectives. Describe the advantages and disadvantages of four methods of measuring distance. Use each of the four methods in a simulated survey. Determine the area of standard geometric shapes.