Which design innovation in laboratory equipment from the 1970s revolutionized biochemical research by allowing scientists to precisely transfer microvolumes of liquids?

Test your knowledge about the history of laboratory equipment design that revolutionized scientific research! Laboratory equipment design has evolved dramatically over the centuries, with certain innovations fundamentally changing how scientists conduct experiments. This poll explores a pivotal design decision that transformed modern chemistry and biochemistry research, making previously impossible experiments routine.

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The adjustable micropipette with disposable tips
Digital electronic scales with 0.001g precision
Automated centrifuge with programmable speeds
Glass pH meters with digital readouts