p-Adic numbers were introduced in mathematics by K. Hensel, and this invention led to substantial developments in number theory, where p-adic numbers are now as natural as ordinary real numbers. […] Bleher noticed in [19] that the set of purely fractional p-adic numbers is an example of hierarchical lattice.

a crush at a reception

Egg-crating can also be used to support metal molds where the thickness of the metal has been reduced to improve weight savings and costs.

Pull the plug out of the tub so it can drain.