A light arch is exactly what it sounds like: an arch fitted with LED strips that can evenly illuminate the area below. They are becoming very popular in the miniature and model making communities ...

30 years ago, for the only time, the rotational arch technology by engineer Günter Kupczik was integrated into the Dresden sewer system. Aiming to achieve better volume management during heavy ...

Arch bridges are one of the oldest types of bridges and have great natural strength. Instead of pushing straight down, the weight of an arch bridge is carried outward along the curve of the arch ...