Microscopic Robot Article

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Across
  1. 5. when two waves collide
  2. 7. way waves change direction as it goes past a sharp edge
Down
  1. 1. a material that gives something its color
  2. 2. the space from one wave to another
  3. 3. a magnet made using an electric current
  4. 4. to make something with machinery
  5. 6. a thin tub-like instrument with a light and lens