the oldest experiment

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1. MelographPiano, oldest experiment. Constructor ing. John E. Hansson

   

2. World’s oldest experiment ready for a drop of excitement

   

3. 15 of the Longest-Running Scientific Studies in History

   

4. Incredible Pictures of Early Science Labs

   

5. One of the world's oldest scientific experiments has been revitalized

   

6. The Oxford Electric Bell, one of the world’s oldest experiments, is