Gravel road embankments in low-lying areas. Cellular confinement systems can be used to prevent the washboarding effect. The gravel used consists of varying amount of crushed stone, sand, and "fines". Fines are silt or clay particles smaller than , which can act as a binder. Crushed stone is used because gravel with fractured faces will stay in place better than rounded river pebbles. A good gravel for a gravel road will have a higher percentage of fines than gravel used as a subbase for a paved road. This often causes problems if a gravel road is paved without adding sand and gravel
Granular synthesis possible. Greek composer Iannis Xenakis is known as the inventor of the granular synthesis technique. Canadian composer Barry Truax was one of the first to implement real-time versions of this synthesis technique. "Granular synthesis has been implemented in different ways, notably by the Canadian composer Barry Truax." There are now many dedicated devices available for exploring granular synthesis without using a computer. Many of these devices are in the Eurorack modular synthesizer format, such as: Granular synthesis Granular synthesis is a basic sound synthesis method that operates on the microsound time scale. It is based on the same principle as