Guess the invention and inventors

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Across
  1. 2. City in California where the Silicon Valley, a hub of technological innovation, is located.
  2. 4. Inventor known for the invention of alternating current (AC) electrical systems.
  3. 6. Inventor of the first practical steam engine.
  4. 7. Invention by Thomas Edison, it revolutionized communication and entertainment.
  5. 10. Asian country where gunpowder was invented.
  6. 12. Inventor of the first commercially successful personal computer.
  7. 13. Italian city known for its historical role in the Renaissance and as a hub of artistic and scientific innovation.
  8. 14. German city where the famous invention of the printing press took place.
  9. 15. mathematician and logician...Boole, whose work laid the foundation for modern computer science.
Down
  1. 1. Invention by Johannes Gutenberg that played a crucial role in the spread of information during the Renaissance.
  2. 3. City in Japan, where the first commercial Compact Disc player was released.
  3. 5. Inventor of the first practical telephone.
  4. 8. Inventor of the first practical video camera.
  5. 9. Location where the Large Hadron Collider, the world's largest and most powerful particle accelerator, is situated.
  6. 11. Invention by Alexander Graham Bell, it enabled the transmission of sound over long distances.