Following this, tamp the surface with pestles or stamp with feet randomly to even out the surface.
A spud bar with a thickened end can be used to tamp soil.
Tamp printing is used to create highly detailed replicas of their originals.
Either moist subsoil that contains enough clay to become cohesive when tamped, or an angular gravel or crushed volcanic rock is used.
The cylinder will extend out and touch (tamp) the adhesive side of the label to a product.
The amount of vapor pressure that builds up, and the temperature reached, are dependent on the grind and packing (tamping) of the grounds.
Ramming was also needed to tamp the powder so that it would explode properly instead of fizzle (this was a leading cause of misfires).
This has the advantage of not disturbing the well-compacted ballast on the trackbed, as tamping is likely to do.
