Puente de los Franceses (Madrid) Puente de los Franceses (Madrid) The Puente de los Franceses (Bridge of the Frenchmen) railway viaduct is located in Madrid, Spain. Comprising five semi-circular brick skew arches, it was built in the second half of the 19th century to carry the railway line from the north (Madrid - Venta de Baños - Irun) across the River Manzanares. The bridge is named after the nationality of the engineers who devised the project, who were of French origin. The bridge is also known as the French Bridge. The bridge was built between 1860 and 1862, along with other construction work on the
Speaker stands the ear of the listener and so speaker stands are often built so that they line up the speakers with the ear of a person when sitting down. Speaker stands Speaker stands are stands on which loudspeakers are placed with the aim of improving the quality of sound from the speaker. In the 1970s musicians and high fidelity enthusiasts found that lifting speakers off the ground and mounting them on something with no vibration increased sound quality. Ordinary domestic furniture was not built with the properties that would deaden vibrations and so enhance the speaker's sound. Speaker stands, therefore were