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  1. Printed circuit board, computer artwork
  2. Printed circuit board
  3. Satellite view of Cape Cod National Seashore area in North Atlantic Ocean, Massachusetts
  4. Robot arm spot-welding a car suspension unit
  5. Arteries of the brain, 3D CT scan
  6. Light bulb lit up over a solar panel
  7. Oscilloscope showing voltage/time trace
  8. Solar power plant, California
  9. Person's hands holding an atom
  10. Oxyacetylene flame
  11. View of planet Earth from space showing Turks and Caicos Islands and Cuba
  12. Communications satellite over Earth
  13. Light bulb filament
  14. Italy, Sicily, Siracusa, Monte Lauro, wind turbine
  15. Milky Way appears through smoke over the McDonald Observatory
  16. Blood centrifuge
  17. Light bulb
  18. Malaria Drug Research
  19. United States, Satellite Dish