Answer:
Edison's laboratories were useful because they provided a dedicated space for Edison and his team to conduct experiments and develop new inventions. The labs were well-equipped with scientific instruments and materials, which allowed Edison and his team to conduct a wide range of experiments and tests. Additionally, the laboratories were staffed with skilled technicians and assistants who could help with the development and testing of new ideas. The labs also provided a space for Edison to collaborate with other inventors and experts in various fields, which allowed him to draw on a wide range of knowledge and expertise in his work. Overall, Edison's laboratories were a crucial part of his success as an inventor and helped to facilitate many of his most important discoveries and inventions.
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