What modifications in scientific expertise and technologies have you lived? + What is your age?

technological alterations on Aquaponics systems: matter of : What adjustments in scientific expertise and technology have you lived? + What is your age? Hw should I ask for men and women of different generations later, so I believed Y! A would perform :) Ideal answer: response David D I am 67 ... I alterations knowledgeable by 78 laps to 33 1/three, then on CD ... I had some of the 1st polio vaccine ... Add your own answer in the comments!

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