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THE WONDERS OF SCIENCE - Coggle Diagram

- - - - unique views of the Universe
      - revolutionised astronomy
    - - LYMAN SPITZER - astronomer - 1946, developed the idea of a orbiting telescope
        
        NASA agreed in the 1960s to build a space telescope
      - TELESCOPE ON GROUND
        
        the Earth's Atmosphere distorts light, images aren't clear
      - TELESCOPE IN ORBIT ABOVE EARTH'S ATMOSPHERE
        
        no same problems
- - - - they emit a sharp noise, it spreads in the air/water, bounces off objects and comes back as an echo
    - - a boat pulls an underwater loadspeaker, it sends out pulses of sounds, PINGS
        
        spread out through the water and reflected back by objects in the water, the bottom of the ocean
        
        THE DISTANCE TO THE REFLECTING OBJECT: speed of sound in water + time it takes the echo to reaturn
    - - making a map of the ocean floor is difficult as sound reflects back from many directions and geological features on the ocean floor
        
        to calculate the map of the ocean floor difficult maths is used