The oldest â and perhaps simplest and most natural form of marketing â is 'word of mouth' (WOM) marketing, in which consumers convey their experiences of a product, service or brand in their day-to-day communications with others.taying ahead of the consumer is an important part of a marketer's job. It is important to understand the marketing environment in order to comprehend the consumers concerns, motivations and to adjust the product according to the consumers needs.
In 1925, Ernst began using the technique of frottage, which involves laying a sheet of paper over a textured surface and rubbing it with charcoal or graphite (the same process can be used to create a rubbing of a coin or an engraved surface).
In ore beneficiation, flotation is a process in which valuable minerals are separated from worthless material or other valuable minerals by inducing them to gather in and on the surface of a froth layer. Sulfide and non-sulfide minerals as well as native metals are recovered by froth flotation. This process is based on the ability of certain chemicals to modify the surface properties of the mineral(s). Other chemicals are used to generate the froth and still others are used to adjust the pH.