[PatrickHenry]

Someone has pointed out to me that Galileo did not have the technology to make precise measurements of gravitational acceleration. There is no doubt that he made measurements.

I think he used an inclined plane to make round things "fall" slower, and he measured the time with his pulse. Not terribly precise, but it was sufficient to observe that heavy objects fall no faster than light ones.

[Dimensio]

I think he used an inclined plane to make round things "fall" slower, and he measured the time with his pulse.

I remember doing this in a high school physics class.

[js1138]

But not accurate enough to establish the rate of acceleration with any precision.

My point is that Galileo used direct observation of falling objects. Newton used induction and inference.