In theory, If there are some known calibration weights, 10g, 50g and 100g, that are a microgram accurate, would that be more precise than a balance? Just have to adjust the result mathematically?

Note that the sand becomes vapor before it is stretched.

@StephenG, how should I rephrase it? I mean space-time. else to be simple, the physical extent across two or three dimensions. Physical extent in all directions, seen as an attribute of the universe, or a mathematical model of this.

Venus has about 99 times as much atmosphere by mass as Earth... Let's say CO2 is 3x the weight, and only 80km high like our planet's atmosphere how can it be 75 the surface pressure? it it an exponential function of gas-stacking? The answer didn't provide an answer to that fundamental question.

Cheers Kyle Kanos the 1987a supernova is an invaluable resource for astronomers and I hadn't yet studied it.