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).
Fluorescence resonance energy transfer (FRET) is a distance-dependent physical process by which energy is transferred nonradiatively from an excited molecular fluorophore (the donor) to another fluorophore (the acceptor) by means of intermolecular long-range dipoleâdipole coupling.