Which scientific instrument, first commercially launched in 1955, enabled researchers to view living cells in unprecedented detail and is credited with revolutionizing cell biology research?

In the world of scientific product development, certain innovations create ripple effects throughout multiple disciplines. This poll tests your knowledge about a significant scientific instrument launch that revolutionized how researchers approach cellular studies. The product's development required overcoming numerous technical challenges, but resulted in a tool that fundamentally transformed biological research capabilities worldwide.

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Phase-contrast microscope
Scanning electron microscope
Infrared spectrophotometer
Gas chromatograph