By sheer mass alone, the battle base was initially quite impressive.

"How much" in comparison to earth is 140 trillion times by mass.

The problem is to calculate the amount of gold by mass.

By mass they could over-power it if they'd any courage at all.

However, this amounts to less than one percent by mass in an average shale.

It has a eutectic point of 21.2 C and 23.3% salt by mass.

Magnesium is the 11th most abundant element by mass in the human body.

Water vapor accounts for roughly 0.25% of the atmosphere by mass.

It is important as an ore for its copper content of about 63 percent by mass.

A later definitive analysis found the concentration of water to be "5.6 2.9% by mass".