While the ride was moderately firm over uneven bitumen on country roads, the secondary - level ride comfort — over smaller irregularities — was fine. (motoring.com.au)
Lumps in the Universe were attracted to other lumps by the force of gravity, so small irregularities were amplified. (newscientist.com)
The sequence of pictures 1 to 4 is a computer simulation of a CDM universe, showing how small irregularities grow to form galaxies under the action of gravity. (newscientist.com)