The mass of an alkali metal atom also increases going down the group.

If Svetz was right, the bird's mass would increase rapidly.

Thus the masses of larger holes would steadily increase as their number diminished.

This makes it feel heavier to shovel, but its mass does not increase.

And of course your mass would increase a thousand times as well requiring you to carry a whole lot more fuel.

Even lower enrichment can be used, but then the required critical mass rapidly increases.

As the mass of the liquid increased, its qualities changed.

With the magic, its mass increased in proportion to its size.

In negatively stressed space, mass does not increase with velocity.

He also found that the acceleration decreased as the mass increased.