Some background information first:

(1) It has been my experience that it can be almost impossible to post short notes like these and get them worded just right so that they never sound like they are being confrontational. If I disagree with someone on a technical point it is not usually not meant to be criticism of that person’s view. It is simply intended as an exchange of scientific information.

(2) I feel that what is being discussed here is fairly important. And if this thread continues in a productive manner I am planning to begin contacting other scientists around the world and recommend that they visit the board to see what is being said and also join in the discussion if they are so inclined.

John, from your earlier note:

>>> there is nothing special about accelerations, in fact they lead to no stress unless there is differential acceleration.

Assuming you mean that one part of the Earth is feeling a stronger acceleration force than some other part,

Wouldn’t just about anything associated with the gravitational pull of the moon on the Earth be differential because of differences in the moon gravity strength between the side of the Earth closest to the moon and the side farthest away?

>>> He got his units wrong, as well as non-standard (per day cubed?).

I believe that he is referring to:

Velocity = meters per day m/day

Acceleration = meters per day, per day, or meters per day squared m/day ** 2

Impulse = meters per day, per day, per day, or meters per day cubed m/day ** 3

And “Impulse” is what is being displayed on that plot.

Question: Do you know if researchers prefer a different units term for that type of application?