Wave-formed ripple Wave-formed ripple In sedimentology, wave-formed ripples or wave-formed ripple marks are a feature of sediments (sandstones, limestones, siltstones) and dunes. These ripple marks are often characterised (and thus distinguished from current ripples) by symmetric cross sections and long relatively straight crests, which may commonly bifurcate. Commonly, these crests can be truncated by subsequent flows. Their wavelength (periodicity) depends on the sediment grain size, water depth and water-particle orbits in the waves. On tidal flats the pattern of wave-formed ripples may be complicated, as a product of changing depth and wind and tidal runoff directions. Symmetrical ripples are commonly found in
A Guy Called Gerald This way it makes it easy for me to create the atmosphere and the rhythm suitable for the individual dancefloor. Kind of like an open kitchen in a restaurant – it’s an open kitchen in a club bringing the food to the people instantly – as soon as it’s produced it’s already on the dancefloor. What I’m looking for in 2015 is sound reproduction in the clubs being taken a lot more seriously than in the past."" A Guy Called Gerald Gerald Simpson (born 16 February 1967), better known as A Guy Called Gerald, is a British DJ, record producer