Scientists and inventions/discoveries

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Across
  1. 2. Charles Babbage
  2. 3. James Watt
  3. 4. Marconi
  4. 5. Edison
  5. 7. Galileo
  6. 8. Newton
Down
  1. 1. Guttenburg
  2. 2. Jagadish Chandra Bose
  3. 4. Einstein
  4. 6. Aryabhatta